6 files changed, 41157 insertions, 0 deletions
diff --git a/plugins/infra/gmfdiag/css/org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/CSSParser.java b/plugins/infra/gmfdiag/css/org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/CSSParser.java
new file mode 100644
index 00000000000..b745a1a5395
--- /dev/null
+++ b/plugins/infra/gmfdiag/css/org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/CSSParser.java
@@ -0,0 +1,230 @@
+/*
+ * generated by Xtext
+ */
+package org.eclipse.papyrus.infra.gmfdiag.css3.ui.contentassist.antlr;
+
+import java.util.Collection;
+import java.util.Map;
+import java.util.HashMap;
+
+import org.antlr.runtime.RecognitionException;
+import org.eclipse.xtext.AbstractElement;
+import org.eclipse.xtext.ui.editor.contentassist.antlr.AbstractContentAssistParser;
+import org.eclipse.xtext.ui.editor.contentassist.antlr.FollowElement;
+import org.eclipse.xtext.ui.editor.contentassist.antlr.internal.AbstractInternalContentAssistParser;
+
+import com.google.inject.Inject;
+
+import org.eclipse.papyrus.infra.gmfdiag.css3.services.CSSGrammarAccess;
+
+public class CSSParser extends AbstractContentAssistParser {
+
+	@Inject
+	private CSSGrammarAccess grammarAccess;
+
+	private Map<AbstractElement, String> nameMappings;
+
+	@Override
+	protected org.eclipse.papyrus.infra.gmfdiag.css3.ui.contentassist.antlr.internal.InternalCSSParser createParser() {
+		org.eclipse.papyrus.infra.gmfdiag.css3.ui.contentassist.antlr.internal.InternalCSSParser result = new org.eclipse.papyrus.infra.gmfdiag.css3.ui.contentassist.antlr.internal.InternalCSSParser(null);
+		result.setGrammarAccess(grammarAccess);
+		return result;
+	}
+
+	@Override
+	protected String getRuleName(AbstractElement element) {
+		if (nameMappings == null) {
+			nameMappings = new HashMap<AbstractElement, String>() {
+				private static final long serialVersionUID = 1L;
+				{
+					put(grammarAccess.getStylesheetAccess().getAlternatives_2(), "rule__Stylesheet__Alternatives_2");
+					put(grammarAccess.getCharsetAccess().getAlternatives_0(), "rule__Charset__Alternatives_0");
+					put(grammarAccess.getImportExpressionAccess().getAlternatives_0(), "rule__ImportExpression__Alternatives_0");
+					put(grammarAccess.getImportExpressionAccess().getAlternatives_1(), "rule__ImportExpression__Alternatives_1");
+					put(grammarAccess.getPageAccess().getAlternatives_1(), "rule__Page__Alternatives_1");
+					put(grammarAccess.getMediaAccess().getAlternatives_0(), "rule__Media__Alternatives_0");
+					put(grammarAccess.getFont_faceAccess().getAlternatives_1(), "rule__Font_face__Alternatives_1");
+					put(grammarAccess.getKeyframesAccess().getAlternatives_1(), "rule__Keyframes__Alternatives_1");
+					put(grammarAccess.getKeyframe_selectorAccess().getAlternatives_0(), "rule__Keyframe_selector__Alternatives_0");
+					put(grammarAccess.getSelectorAccess().getAlternatives_1(), "rule__Selector__Alternatives_1");
+					put(grammarAccess.getSimpleSelectorForNegationAccess().getAlternatives(), "rule__SimpleSelectorForNegation__Alternatives");
+					put(grammarAccess.getSimpleSelectorForNegationAccess().getAlternatives_0_0(), "rule__SimpleSelectorForNegation__Alternatives_0_0");
+					put(grammarAccess.getSubSelectorForNegationAccess().getAlternatives(), "rule__SubSelectorForNegation__Alternatives");
+					put(grammarAccess.getSimple_selectorAccess().getAlternatives(), "rule__Simple_selector__Alternatives");
+					put(grammarAccess.getSimple_selectorAccess().getAlternatives_0_0(), "rule__Simple_selector__Alternatives_0_0");
+					put(grammarAccess.getSubSelectorAccess().getAlternatives(), "rule__SubSelector__Alternatives");
+					put(grammarAccess.getAttributeSelectorAccess().getOpAlternatives_3_0_0(), "rule__AttributeSelector__OpAlternatives_3_0_0");
+					put(grammarAccess.getAttributeSelectorAccess().getValueAlternatives_3_1_0(), "rule__AttributeSelector__ValueAlternatives_3_1_0");
+					put(grammarAccess.getCss_namespace_prefixAccess().getAlternatives_0(), "rule__Css_namespace_prefix__Alternatives_0");
+					put(grammarAccess.getPseudoClassOrFuncAccess().getAlternatives(), "rule__PseudoClassOrFunc__Alternatives");
+					put(grammarAccess.getPseudoClassFunctionAccess().getAlternatives(), "rule__PseudoClassFunction__Alternatives");
+					put(grammarAccess.getCombinatorAccess().getAlternatives(), "rule__Combinator__Alternatives");
+					put(grammarAccess.getOperatorAccess().getAlternatives(), "rule__Operator__Alternatives");
+					put(grammarAccess.getUnary_operatorAccess().getAlternatives(), "rule__Unary_operator__Alternatives");
+					put(grammarAccess.getSymbolTokAccess().getSymbolAlternatives_1_0(), "rule__SymbolTok__SymbolAlternatives_1_0");
+					put(grammarAccess.getCssTokAccess().getAlternatives(), "rule__CssTok__Alternatives");
+					put(grammarAccess.getValidURLSymbolAccess().getAlternatives(), "rule__ValidURLSymbol__Alternatives");
+					put(grammarAccess.getKeywordHackAccess().getAlternatives(), "rule__KeywordHack__Alternatives");
+					put(grammarAccess.getValidURLAccess().getAlternatives(), "rule__ValidURL__Alternatives");
+					put(grammarAccess.getValidURLAccess().getAlternatives_1(), "rule__ValidURL__Alternatives_1");
+					put(grammarAccess.getValidURLAccess().getAlternatives_1_10_1(), "rule__ValidURL__Alternatives_1_10_1");
+					put(grammarAccess.getValidURLAccess().getAlternatives_1_10_2(), "rule__ValidURL__Alternatives_1_10_2");
+					put(grammarAccess.getIdentifierAccess().getAlternatives_1(), "rule__Identifier__Alternatives_1");
+					put(grammarAccess.getIdentifierAccess().getAlternatives_2_0(), "rule__Identifier__Alternatives_2_0");
+					put(grammarAccess.getNumAccess().getAlternatives_0(), "rule__Num__Alternatives_0");
+					put(grammarAccess.getNumAccess().getAlternatives_1(), "rule__Num__Alternatives_1");
+					put(grammarAccess.getHexAccess().getAlternatives_1_0(), "rule__Hex__Alternatives_1_0");
+					put(grammarAccess.getStylesheetAccess().getGroup(), "rule__Stylesheet__Group__0");
+					put(grammarAccess.getCharsetAccess().getGroup(), "rule__Charset__Group__0");
+					put(grammarAccess.getImportExpressionAccess().getGroup(), "rule__ImportExpression__Group__0");
+					put(grammarAccess.getImportExpressionAccess().getGroup_1_1(), "rule__ImportExpression__Group_1_1__0");
+					put(grammarAccess.getPageAccess().getGroup(), "rule__Page__Group__0");
+					put(grammarAccess.getPageAccess().getGroup_5(), "rule__Page__Group_5__0");
+					put(grammarAccess.getPseudo_pageAccess().getGroup(), "rule__Pseudo_page__Group__0");
+					put(grammarAccess.getMediaAccess().getGroup(), "rule__Media__Group__0");
+					put(grammarAccess.getMedia_listAccess().getGroup(), "rule__Media_list__Group__0");
+					put(grammarAccess.getMedia_listAccess().getGroup_1(), "rule__Media_list__Group_1__0");
+					put(grammarAccess.getFont_faceAccess().getGroup(), "rule__Font_face__Group__0");
+					put(grammarAccess.getFont_faceAccess().getGroup_4(), "rule__Font_face__Group_4__0");
+					put(grammarAccess.getKeyframesAccess().getGroup(), "rule__Keyframes__Group__0");
+					put(grammarAccess.getKeyframesAccess().getGroup_5(), "rule__Keyframes__Group_5__0");
+					put(grammarAccess.getKeyframe_selectorAccess().getGroup(), "rule__Keyframe_selector__Group__0");
+					put(grammarAccess.getKeyframe_selectorAccess().getGroup_0_1(), "rule__Keyframe_selector__Group_0_1__0");
+					put(grammarAccess.getKeyframe_selectorAccess().getGroup_3(), "rule__Keyframe_selector__Group_3__0");
+					put(grammarAccess.getRulesetAccess().getGroup(), "rule__Ruleset__Group__0");
+					put(grammarAccess.getRulesetAccess().getGroup_1(), "rule__Ruleset__Group_1__0");
+					put(grammarAccess.getRulesetAccess().getGroup_4(), "rule__Ruleset__Group_4__0");
+					put(grammarAccess.getRulesetAccess().getGroup_4_1(), "rule__Ruleset__Group_4_1__0");
+					put(grammarAccess.getSelectorAccess().getGroup(), "rule__Selector__Group__0");
+					put(grammarAccess.getSelectorAccess().getGroup_1_0(), "rule__Selector__Group_1_0__0");
+					put(grammarAccess.getSelectorAccess().getGroup_1_1(), "rule__Selector__Group_1_1__0");
+					put(grammarAccess.getSelectorAccess().getGroup_1_1_1(), "rule__Selector__Group_1_1_1__0");
+					put(grammarAccess.getSimpleSelectorForNegationAccess().getGroup_0(), "rule__SimpleSelectorForNegation__Group_0__0");
+					put(grammarAccess.getSimple_selectorAccess().getGroup_0(), "rule__Simple_selector__Group_0__0");
+					put(grammarAccess.getAttributeSelectorAccess().getGroup(), "rule__AttributeSelector__Group__0");
+					put(grammarAccess.getAttributeSelectorAccess().getGroup_3(), "rule__AttributeSelector__Group_3__0");
+					put(grammarAccess.getClassSelectorAccess().getGroup(), "rule__ClassSelector__Group__0");
+					put(grammarAccess.getElementSelectorAccess().getGroup(), "rule__ElementSelector__Group__0");
+					put(grammarAccess.getUniversalSelectorAccess().getGroup(), "rule__UniversalSelector__Group__0");
+					put(grammarAccess.getIdSelectorAccess().getGroup(), "rule__IdSelector__Group__0");
+					put(grammarAccess.getCss_namespace_prefixAccess().getGroup(), "rule__Css_namespace_prefix__Group__0");
+					put(grammarAccess.getCss_declarationAccess().getGroup(), "rule__Css_declaration__Group__0");
+					put(grammarAccess.getCss_propertyAccess().getGroup(), "rule__Css_property__Group__0");
+					put(grammarAccess.getPseudoClassAccess().getGroup(), "rule__PseudoClass__Group__0");
+					put(grammarAccess.getPseudoClassFunctionAccess().getGroup_0(), "rule__PseudoClassFunction__Group_0__0");
+					put(grammarAccess.getPseudoClassFunctionAccess().getGroup_1(), "rule__PseudoClassFunction__Group_1__0");
+					put(grammarAccess.getNotFunctionCallAccess().getGroup(), "rule__NotFunctionCall__Group__0");
+					put(grammarAccess.getSymbolTokAccess().getGroup(), "rule__SymbolTok__Group__0");
+					put(grammarAccess.getWSTokAccess().getGroup(), "rule__WSTok__Group__0");
+					put(grammarAccess.getStringTokAccess().getGroup(), "rule__StringTok__Group__0");
+					put(grammarAccess.getNumberTokAccess().getGroup(), "rule__NumberTok__Group__0");
+					put(grammarAccess.getUrlTokAccess().getGroup(), "rule__UrlTok__Group__0");
+					put(grammarAccess.getColorTokAccess().getGroup(), "rule__ColorTok__Group__0");
+					put(grammarAccess.getIdentifierOrFuncTokAccess().getGroup(), "rule__IdentifierOrFuncTok__Group__0");
+					put(grammarAccess.getIdentifierOrFuncTokAccess().getGroup_2(), "rule__IdentifierOrFuncTok__Group_2__0");
+					put(grammarAccess.getURLTypeAccess().getGroup(), "rule__URLType__Group__0");
+					put(grammarAccess.getValidURLSymbolAccess().getGroup_18(), "rule__ValidURLSymbol__Group_18__0");
+					put(grammarAccess.getValidURLAccess().getGroup_1_10(), "rule__ValidURL__Group_1_10__0");
+					put(grammarAccess.getIdentifierAccess().getGroup(), "rule__Identifier__Group__0");
+					put(grammarAccess.getIdentifierAccess().getGroup_2(), "rule__Identifier__Group_2__0");
+					put(grammarAccess.getNumAccess().getGroup(), "rule__Num__Group__0");
+					put(grammarAccess.getNumAccess().getGroup_1_0(), "rule__Num__Group_1_0__0");
+					put(grammarAccess.getNumAccess().getGroup_1_1(), "rule__Num__Group_1_1__0");
+					put(grammarAccess.getNumAccess().getGroup_1_1_1(), "rule__Num__Group_1_1_1__0");
+					put(grammarAccess.getHexAccess().getGroup(), "rule__Hex__Group__0");
+					put(grammarAccess.getHexAccess().getGroup_1(), "rule__Hex__Group_1__0");
+					put(grammarAccess.getStylesheetAccess().getCharsetAssignment_0(), "rule__Stylesheet__CharsetAssignment_0");
+					put(grammarAccess.getStylesheetAccess().getImportsAssignment_1(), "rule__Stylesheet__ImportsAssignment_1");
+					put(grammarAccess.getStylesheetAccess().getRulesetAssignment_2_0(), "rule__Stylesheet__RulesetAssignment_2_0");
+					put(grammarAccess.getStylesheetAccess().getMediaAssignment_2_1(), "rule__Stylesheet__MediaAssignment_2_1");
+					put(grammarAccess.getStylesheetAccess().getPageAssignment_2_2(), "rule__Stylesheet__PageAssignment_2_2");
+					put(grammarAccess.getStylesheetAccess().getFont_faceAssignment_2_3(), "rule__Stylesheet__Font_faceAssignment_2_3");
+					put(grammarAccess.getStylesheetAccess().getKeyframesAssignment_2_4(), "rule__Stylesheet__KeyframesAssignment_2_4");
+					put(grammarAccess.getCharsetAccess().getCharsetAssignment_1(), "rule__Charset__CharsetAssignment_1");
+					put(grammarAccess.getImportExpressionAccess().getValueAssignment_1_0(), "rule__ImportExpression__ValueAssignment_1_0");
+					put(grammarAccess.getImportExpressionAccess().getMediaListAssignment_1_1_1(), "rule__ImportExpression__MediaListAssignment_1_1_1");
+					put(grammarAccess.getPageAccess().getPseudoPageAssignment_2(), "rule__Page__PseudoPageAssignment_2");
+					put(grammarAccess.getPageAccess().getDeclarationsAssignment_4(), "rule__Page__DeclarationsAssignment_4");
+					put(grammarAccess.getPageAccess().getDeclarationsAssignment_5_1(), "rule__Page__DeclarationsAssignment_5_1");
+					put(grammarAccess.getMediaAccess().getMedialistAssignment_1(), "rule__Media__MedialistAssignment_1");
+					put(grammarAccess.getMediaAccess().getRulesetsAssignment_3(), "rule__Media__RulesetsAssignment_3");
+					put(grammarAccess.getFont_faceAccess().getDeclarationsAssignment_3(), "rule__Font_face__DeclarationsAssignment_3");
+					put(grammarAccess.getFont_faceAccess().getDeclarationsAssignment_4_1(), "rule__Font_face__DeclarationsAssignment_4_1");
+					put(grammarAccess.getKeyframesAccess().getNameAssignment_2(), "rule__Keyframes__NameAssignment_2");
+					put(grammarAccess.getKeyframesAccess().getKeyframeselectorsAssignment_4(), "rule__Keyframes__KeyframeselectorsAssignment_4");
+					put(grammarAccess.getKeyframesAccess().getKeyframeselectorsAssignment_5_1(), "rule__Keyframes__KeyframeselectorsAssignment_5_1");
+					put(grammarAccess.getKeyframe_selectorAccess().getTypeAssignment_0_0(), "rule__Keyframe_selector__TypeAssignment_0_0");
+					put(grammarAccess.getKeyframe_selectorAccess().getPercentageAssignment_0_1_0(), "rule__Keyframe_selector__PercentageAssignment_0_1_0");
+					put(grammarAccess.getKeyframe_selectorAccess().getDeclarationsAssignment_2(), "rule__Keyframe_selector__DeclarationsAssignment_2");
+					put(grammarAccess.getKeyframe_selectorAccess().getDeclarationsAssignment_3_1(), "rule__Keyframe_selector__DeclarationsAssignment_3_1");
+					put(grammarAccess.getRulesetAccess().getSelectorsAssignment_0(), "rule__Ruleset__SelectorsAssignment_0");
+					put(grammarAccess.getRulesetAccess().getSelectorsAssignment_1_2(), "rule__Ruleset__SelectorsAssignment_1_2");
+					put(grammarAccess.getRulesetAccess().getDeclarationsAssignment_4_0(), "rule__Ruleset__DeclarationsAssignment_4_0");
+					put(grammarAccess.getRulesetAccess().getDeclarationsAssignment_4_1_1(), "rule__Ruleset__DeclarationsAssignment_4_1_1");
+					put(grammarAccess.getSelectorAccess().getSimpleselectorsAssignment_0(), "rule__Selector__SimpleselectorsAssignment_0");
+					put(grammarAccess.getSelectorAccess().getCombinatorAssignment_1_0_0(), "rule__Selector__CombinatorAssignment_1_0_0");
+					put(grammarAccess.getSelectorAccess().getSelectorAssignment_1_0_2(), "rule__Selector__SelectorAssignment_1_0_2");
+					put(grammarAccess.getSelectorAccess().getCombinatorAssignment_1_1_1_0(), "rule__Selector__CombinatorAssignment_1_1_1_0");
+					put(grammarAccess.getSelectorAccess().getSelectorAssignment_1_1_2(), "rule__Selector__SelectorAssignment_1_1_2");
+					put(grammarAccess.getSimpleSelectorForNegationAccess().getElementAssignment_0_0_0(), "rule__SimpleSelectorForNegation__ElementAssignment_0_0_0");
+					put(grammarAccess.getSimpleSelectorForNegationAccess().getUniversalAssignment_0_0_1(), "rule__SimpleSelectorForNegation__UniversalAssignment_0_0_1");
+					put(grammarAccess.getSimpleSelectorForNegationAccess().getSubSelectorsAssignment_0_1(), "rule__SimpleSelectorForNegation__SubSelectorsAssignment_0_1");
+					put(grammarAccess.getSimpleSelectorForNegationAccess().getSubSelectorsAssignment_1(), "rule__SimpleSelectorForNegation__SubSelectorsAssignment_1");
+					put(grammarAccess.getSimple_selectorAccess().getElementAssignment_0_0_0(), "rule__Simple_selector__ElementAssignment_0_0_0");
+					put(grammarAccess.getSimple_selectorAccess().getUniversalAssignment_0_0_1(), "rule__Simple_selector__UniversalAssignment_0_0_1");
+					put(grammarAccess.getSimple_selectorAccess().getSubSelectorsAssignment_0_1(), "rule__Simple_selector__SubSelectorsAssignment_0_1");
+					put(grammarAccess.getSimple_selectorAccess().getSubSelectorsAssignment_1(), "rule__Simple_selector__SubSelectorsAssignment_1");
+					put(grammarAccess.getAttributeSelectorAccess().getNameAssignment_2(), "rule__AttributeSelector__NameAssignment_2");
+					put(grammarAccess.getAttributeSelectorAccess().getOpAssignment_3_0(), "rule__AttributeSelector__OpAssignment_3_0");
+					put(grammarAccess.getAttributeSelectorAccess().getValueAssignment_3_1(), "rule__AttributeSelector__ValueAssignment_3_1");
+					put(grammarAccess.getClassSelectorAccess().getNameAssignment_2(), "rule__ClassSelector__NameAssignment_2");
+					put(grammarAccess.getElementSelectorAccess().getNameAssignment_1(), "rule__ElementSelector__NameAssignment_1");
+					put(grammarAccess.getUniversalSelectorAccess().getNamespaceAssignment_1(), "rule__UniversalSelector__NamespaceAssignment_1");
+					put(grammarAccess.getIdSelectorAccess().getNameAssignment_2(), "rule__IdSelector__NameAssignment_2");
+					put(grammarAccess.getCss_declarationAccess().getPropertyAssignment_1(), "rule__Css_declaration__PropertyAssignment_1");
+					put(grammarAccess.getCss_declarationAccess().getValueTokensAssignment_4(), "rule__Css_declaration__ValueTokensAssignment_4");
+					put(grammarAccess.getCss_declarationAccess().getImportantAssignment_5(), "rule__Css_declaration__ImportantAssignment_5");
+					put(grammarAccess.getCss_propertyAccess().getNameAssignment_1(), "rule__Css_property__NameAssignment_1");
+					put(grammarAccess.getPseudoClassNameAccess().getNameAssignment(), "rule__PseudoClassName__NameAssignment");
+					put(grammarAccess.getPseudoClassFunctionAccess().getNotAssignment_0_0(), "rule__PseudoClassFunction__NotAssignment_0_0");
+					put(grammarAccess.getPseudoClassFunctionAccess().getParamSelectorAssignment_0_1(), "rule__PseudoClassFunction__ParamSelectorAssignment_0_1");
+					put(grammarAccess.getPseudoClassFunctionAccess().getNameAssignment_1_1(), "rule__PseudoClassFunction__NameAssignment_1_1");
+					put(grammarAccess.getPseudoClassFunctionAccess().getParamsAssignment_1_3(), "rule__PseudoClassFunction__ParamsAssignment_1_3");
+					put(grammarAccess.getSymbolTokAccess().getSymbolAssignment_1(), "rule__SymbolTok__SymbolAssignment_1");
+					put(grammarAccess.getStringTokAccess().getValueAssignment_1(), "rule__StringTok__ValueAssignment_1");
+					put(grammarAccess.getNumberTokAccess().getValAssignment_1(), "rule__NumberTok__ValAssignment_1");
+					put(grammarAccess.getUrlTokAccess().getUrlAssignment_1(), "rule__UrlTok__UrlAssignment_1");
+					put(grammarAccess.getColorTokAccess().getValueAssignment_1(), "rule__ColorTok__ValueAssignment_1");
+					put(grammarAccess.getIdentifierOrFuncTokAccess().getNameAssignment_1(), "rule__IdentifierOrFuncTok__NameAssignment_1");
+					put(grammarAccess.getIdentifierOrFuncTokAccess().getParamsAssignment_2_2(), "rule__IdentifierOrFuncTok__ParamsAssignment_2_2");
+					put(grammarAccess.getURLTypeAccess().getUrlAssignment_1(), "rule__URLType__UrlAssignment_1");
+				}
+			};
+		}
+		return nameMappings.get(element);
+	}
+
+	@Override
+	protected Collection<FollowElement> getFollowElements(AbstractInternalContentAssistParser parser) {
+		try {
+			org.eclipse.papyrus.infra.gmfdiag.css3.ui.contentassist.antlr.internal.InternalCSSParser typedParser = (org.eclipse.papyrus.infra.gmfdiag.css3.ui.contentassist.antlr.internal.InternalCSSParser) parser;
+			typedParser.entryRulestylesheet();
+			return typedParser.getFollowElements();
+		} catch (RecognitionException ex) {
+			throw new RuntimeException(ex);
+		}
+	}
+
+	@Override
+	protected String[] getInitialHiddenTokens() {
+		return new String[] { "RULE_WS", "RULE_ML_COMMENT" };
+	}
+
+	public CSSGrammarAccess getGrammarAccess() {
+		return this.grammarAccess;
+	}
+
+	public void setGrammarAccess(CSSGrammarAccess grammarAccess) {
+		this.grammarAccess = grammarAccess;
+	}
+}
diff --git a/plugins/infra/gmfdiag/css/org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/PartialCSSContentAssistParser.java b/plugins/infra/gmfdiag/css/org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/PartialCSSContentAssistParser.java
new file mode 100644
index 00000000000..9272bed0303
--- /dev/null
+++ b/plugins/infra/gmfdiag/css/org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/PartialCSSContentAssistParser.java
@@ -0,0 +1,39 @@
+/*
+ * generated by Xtext
+ */
+package org.eclipse.papyrus.infra.gmfdiag.css3.ui.contentassist.antlr;
+
+import java.util.Collection;
+import java.util.Collections;
+
+import org.eclipse.xtext.AbstractRule;
+import org.eclipse.xtext.ui.codetemplates.ui.partialEditing.IPartialContentAssistParser;
+import org.eclipse.xtext.ui.editor.contentassist.antlr.FollowElement;
+import org.eclipse.xtext.ui.editor.contentassist.antlr.internal.AbstractInternalContentAssistParser;
+import org.eclipse.xtext.util.PolymorphicDispatcher;
+
+/*
+ * Template CodetemplatesGeneratorFragment.xpt
+ */
+public class PartialCSSContentAssistParser extends CSSParser implements IPartialContentAssistParser {
+
+	private AbstractRule rule;
+
+	@Override
+	public void initializeFor(AbstractRule rule) {
+		this.rule = rule;
+	}
+
+	@Override
+	protected Collection<FollowElement> getFollowElements(AbstractInternalContentAssistParser parser) {
+		if (rule == null || rule.eIsProxy()) {
+			return Collections.emptyList();
+		}
+		String methodName = "entryRule" + rule.getName();
+		PolymorphicDispatcher<Collection<FollowElement>> dispatcher =
+				new PolymorphicDispatcher<Collection<FollowElement>>(methodName, 0, 0, Collections.singletonList(parser));
+		dispatcher.invoke();
+		return parser.getFollowElements();
+	}
+
+}
diff --git a/plugins/infra/gmfdiag/css/org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g b/plugins/infra/gmfdiag/css/org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g
new file mode 100644
index 00000000000..cefb26f2b0f
--- /dev/null
+++ b/plugins/infra/gmfdiag/css/org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g
@@ -0,0 +1,8974 @@
+/*
+ * generated by Xtext
+ */
+grammar InternalCSS;
+
+options {
+	superClass=AbstractInternalContentAssistParser;
+	backtrack=true;
+	
+}
+
+@lexer::header {
+package org.eclipse.papyrus.infra.gmfdiag.css3.ui.contentassist.antlr.internal;
+
+// Hack: Use our own Lexer superclass by means of import. 
+// Currently there is no other way to specify the superclass for the lexer.
+import org.eclipse.xtext.ui.editor.contentassist.antlr.internal.Lexer;
+}
+
+@parser::header {
+package org.eclipse.papyrus.infra.gmfdiag.css3.ui.contentassist.antlr.internal; 
+
+import java.io.InputStream;
+import org.eclipse.xtext.*;
+import org.eclipse.xtext.parser.*;
+import org.eclipse.xtext.parser.impl.*;
+import org.eclipse.emf.ecore.util.EcoreUtil;
+import org.eclipse.emf.ecore.EObject;
+import org.eclipse.xtext.parser.antlr.XtextTokenStream;
+import org.eclipse.xtext.parser.antlr.XtextTokenStream.HiddenTokens;
+import org.eclipse.xtext.ui.editor.contentassist.antlr.internal.AbstractInternalContentAssistParser;
+import org.eclipse.xtext.ui.editor.contentassist.antlr.internal.DFA;
+import org.eclipse.papyrus.infra.gmfdiag.css3.services.CSSGrammarAccess;
+
+}
+
+@parser::members {
+ 
+ 	private CSSGrammarAccess grammarAccess;
+ 	
+    public void setGrammarAccess(CSSGrammarAccess grammarAccess) {
+    	this.grammarAccess = grammarAccess;
+    }
+    
+    @Override
+    protected Grammar getGrammar() {
+    	return grammarAccess.getGrammar();
+    }
+    
+    @Override
+    protected String getValueForTokenName(String tokenName) {
+    	return tokenName;
+    }
+
+}
+
+
+
+
+// Entry rule entryRulestylesheet
+entryRulestylesheet 
+:
+{ before(grammarAccess.getStylesheetRule()); }
+	 rulestylesheet
+{ after(grammarAccess.getStylesheetRule()); } 
+	 EOF 
+;
+
+// Rule stylesheet
+rulestylesheet
+    @init {
+		int stackSize = keepStackSize();
+    }
+	:
+(
+{ before(grammarAccess.getStylesheetAccess().getGroup()); }
+(rule__Stylesheet__Group__0)
+{ after(grammarAccess.getStylesheetAccess().getGroup()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+
+// Entry rule entryRulecharset
+entryRulecharset 
+:
+{ before(grammarAccess.getCharsetRule()); }
+	 rulecharset
+{ after(grammarAccess.getCharsetRule()); } 
+	 EOF 
+;
+
+// Rule charset
+rulecharset
+    @init {
+		int stackSize = keepStackSize();
+    }
+	:
+(
+{ before(grammarAccess.getCharsetAccess().getGroup()); }
+(rule__Charset__Group__0)
+{ after(grammarAccess.getCharsetAccess().getGroup()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+
+// Entry rule entryRuleimportExpression
+entryRuleimportExpression 
+:
+{ before(grammarAccess.getImportExpressionRule()); }
+	 ruleimportExpression
+{ after(grammarAccess.getImportExpressionRule()); } 
+	 EOF 
+;
+
+// Rule importExpression
+ruleimportExpression
+    @init {
+		int stackSize = keepStackSize();
+    }
+	:
+(
+{ before(grammarAccess.getImportExpressionAccess().getGroup()); }
+(rule__ImportExpression__Group__0)
+{ after(grammarAccess.getImportExpressionAccess().getGroup()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+
+// Entry rule entryRulepage
+entryRulepage 
+:
+{ before(grammarAccess.getPageRule()); }
+	 rulepage
+{ after(grammarAccess.getPageRule()); } 
+	 EOF 
+;
+
+// Rule page
+rulepage
+    @init {
+		int stackSize = keepStackSize();
+    }
+	:
+(
+{ before(grammarAccess.getPageAccess().getGroup()); }
+(rule__Page__Group__0)
+{ after(grammarAccess.getPageAccess().getGroup()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+
+// Entry rule entryRulepseudo_page
+entryRulepseudo_page 
+:
+{ before(grammarAccess.getPseudo_pageRule()); }
+	 rulepseudo_page
+{ after(grammarAccess.getPseudo_pageRule()); } 
+	 EOF 
+;
+
+// Rule pseudo_page
+rulepseudo_page
+    @init {
+		int stackSize = keepStackSize();
+    }
+	:
+(
+{ before(grammarAccess.getPseudo_pageAccess().getGroup()); }
+(rule__Pseudo_page__Group__0)
+{ after(grammarAccess.getPseudo_pageAccess().getGroup()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+
+// Entry rule entryRulemedia
+entryRulemedia 
+:
+{ before(grammarAccess.getMediaRule()); }
+	 rulemedia
+{ after(grammarAccess.getMediaRule()); } 
+	 EOF 
+;
+
+// Rule media
+rulemedia
+    @init {
+		int stackSize = keepStackSize();
+    }
+	:
+(
+{ before(grammarAccess.getMediaAccess().getGroup()); }
+(rule__Media__Group__0)
+{ after(grammarAccess.getMediaAccess().getGroup()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+
+// Entry rule entryRulemedia_list
+entryRulemedia_list 
+:
+{ before(grammarAccess.getMedia_listRule()); }
+	 rulemedia_list
+{ after(grammarAccess.getMedia_listRule()); } 
+	 EOF 
+;
+
+// Rule media_list
+rulemedia_list
+    @init {
+		int stackSize = keepStackSize();
+    }
+	:
+(
+{ before(grammarAccess.getMedia_listAccess().getGroup()); }
+(rule__Media_list__Group__0)
+{ after(grammarAccess.getMedia_listAccess().getGroup()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+
+// Entry rule entryRulemedium
+entryRulemedium 
+:
+{ before(grammarAccess.getMediumRule()); }
+	 rulemedium
+{ after(grammarAccess.getMediumRule()); } 
+	 EOF 
+;
+
+// Rule medium
+rulemedium
+    @init {
+		int stackSize = keepStackSize();
+    }
+	:
+(
+{ before(grammarAccess.getMediumAccess().getIdentifierParserRuleCall()); }
+	ruleIdentifier
+{ after(grammarAccess.getMediumAccess().getIdentifierParserRuleCall()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+
+// Entry rule entryRulefont_face
+entryRulefont_face 
+:
+{ before(grammarAccess.getFont_faceRule()); }
+	 rulefont_face
+{ after(grammarAccess.getFont_faceRule()); } 
+	 EOF 
+;
+
+// Rule font_face
+rulefont_face
+    @init {
+		int stackSize = keepStackSize();
+    }
+	:
+(
+{ before(grammarAccess.getFont_faceAccess().getGroup()); }
+(rule__Font_face__Group__0)
+{ after(grammarAccess.getFont_faceAccess().getGroup()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+
+// Entry rule entryRulekeyframes
+entryRulekeyframes 
+:
+{ before(grammarAccess.getKeyframesRule()); }
+	 rulekeyframes
+{ after(grammarAccess.getKeyframesRule()); } 
+	 EOF 
+;
+
+// Rule keyframes
+rulekeyframes
+    @init {
+		int stackSize = keepStackSize();
+    }
+	:
+(
+{ before(grammarAccess.getKeyframesAccess().getGroup()); }
+(rule__Keyframes__Group__0)
+{ after(grammarAccess.getKeyframesAccess().getGroup()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+
+// Entry rule entryRulekeyframe_selector
+entryRulekeyframe_selector 
+:
+{ before(grammarAccess.getKeyframe_selectorRule()); }
+	 rulekeyframe_selector
+{ after(grammarAccess.getKeyframe_selectorRule()); } 
+	 EOF 
+;
+
+// Rule keyframe_selector
+rulekeyframe_selector
+    @init {
+		int stackSize = keepStackSize();
+    }
+	:
+(
+{ before(grammarAccess.getKeyframe_selectorAccess().getGroup()); }
+(rule__Keyframe_selector__Group__0)
+{ after(grammarAccess.getKeyframe_selectorAccess().getGroup()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+
+// Entry rule entryRuleruleset
+entryRuleruleset 
+:
+{ before(grammarAccess.getRulesetRule()); }
+	 ruleruleset
+{ after(grammarAccess.getRulesetRule()); } 
+	 EOF 
+;
+
+// Rule ruleset
+ruleruleset
+    @init {
+		int stackSize = keepStackSize();
+    }
+	:
+(
+{ before(grammarAccess.getRulesetAccess().getGroup()); }
+(rule__Ruleset__Group__0)
+{ after(grammarAccess.getRulesetAccess().getGroup()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+
+// Entry rule entryRuleselector
+entryRuleselector 
+@init {
+	HiddenTokens myHiddenTokenState = ((XtextTokenStream)input).setHiddenTokens("RULE_ML_COMMENT");
+}
+:
+{ before(grammarAccess.getSelectorRule()); }
+	 ruleselector
+{ after(grammarAccess.getSelectorRule()); } 
+	 EOF 
+;
+finally {
+	myHiddenTokenState.restore();
+}
+
+// Rule selector
+ruleselector
+    @init {
+		HiddenTokens myHiddenTokenState = ((XtextTokenStream)input).setHiddenTokens("RULE_ML_COMMENT");
+		int stackSize = keepStackSize();
+    }
+	:
+(
+{ before(grammarAccess.getSelectorAccess().getGroup()); }
+(rule__Selector__Group__0)
+{ after(grammarAccess.getSelectorAccess().getGroup()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+	myHiddenTokenState.restore();
+}
+
+
+
+// Entry rule entryRuleSimpleSelectorForNegation
+entryRuleSimpleSelectorForNegation 
+:
+{ before(grammarAccess.getSimpleSelectorForNegationRule()); }
+	 ruleSimpleSelectorForNegation
+{ after(grammarAccess.getSimpleSelectorForNegationRule()); } 
+	 EOF 
+;
+
+// Rule SimpleSelectorForNegation
+ruleSimpleSelectorForNegation
+    @init {
+		int stackSize = keepStackSize();
+    }
+	:
+(
+{ before(grammarAccess.getSimpleSelectorForNegationAccess().getAlternatives()); }
+(rule__SimpleSelectorForNegation__Alternatives)
+{ after(grammarAccess.getSimpleSelectorForNegationAccess().getAlternatives()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+
+// Entry rule entryRuleSubSelectorForNegation
+entryRuleSubSelectorForNegation 
+:
+{ before(grammarAccess.getSubSelectorForNegationRule()); }
+	 ruleSubSelectorForNegation
+{ after(grammarAccess.getSubSelectorForNegationRule()); } 
+	 EOF 
+;
+
+// Rule SubSelectorForNegation
+ruleSubSelectorForNegation
+    @init {
+		int stackSize = keepStackSize();
+    }
+	:
+(
+{ before(grammarAccess.getSubSelectorForNegationAccess().getAlternatives()); }
+(rule__SubSelectorForNegation__Alternatives)
+{ after(grammarAccess.getSubSelectorForNegationAccess().getAlternatives()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+
+// Entry rule entryRulesimple_selector
+entryRulesimple_selector 
+@init {
+	HiddenTokens myHiddenTokenState = ((XtextTokenStream)input).setHiddenTokens("RULE_ML_COMMENT");
+}
+:
+{ before(grammarAccess.getSimple_selectorRule()); }
+	 rulesimple_selector
+{ after(grammarAccess.getSimple_selectorRule()); } 
+	 EOF 
+;
+finally {
+	myHiddenTokenState.restore();
+}
+
+// Rule simple_selector
+rulesimple_selector
+    @init {
+		HiddenTokens myHiddenTokenState = ((XtextTokenStream)input).setHiddenTokens("RULE_ML_COMMENT");
+		int stackSize = keepStackSize();
+    }
+	:
+(
+{ before(grammarAccess.getSimple_selectorAccess().getAlternatives()); }
+(rule__Simple_selector__Alternatives)
+{ after(grammarAccess.getSimple_selectorAccess().getAlternatives()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+	myHiddenTokenState.restore();
+}
+
+
+
+// Entry rule entryRuleSubSelector
+entryRuleSubSelector 
+:
+{ before(grammarAccess.getSubSelectorRule()); }
+	 ruleSubSelector
+{ after(grammarAccess.getSubSelectorRule()); } 
+	 EOF 
+;
+
+// Rule SubSelector
+ruleSubSelector
+    @init {
+		int stackSize = keepStackSize();
+    }
+	:
+(
+{ before(grammarAccess.getSubSelectorAccess().getAlternatives()); }
+(rule__SubSelector__Alternatives)
+{ after(grammarAccess.getSubSelectorAccess().getAlternatives()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+
+// Entry rule entryRuleAttributeSelector
+entryRuleAttributeSelector 
+:
+{ before(grammarAccess.getAttributeSelectorRule()); }
+	 ruleAttributeSelector
+{ after(grammarAccess.getAttributeSelectorRule()); } 
+	 EOF 
+;
+
+// Rule AttributeSelector
+ruleAttributeSelector
+    @init {
+		int stackSize = keepStackSize();
+    }
+	:
+(
+{ before(grammarAccess.getAttributeSelectorAccess().getGroup()); }
+(rule__AttributeSelector__Group__0)
+{ after(grammarAccess.getAttributeSelectorAccess().getGroup()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+
+// Entry rule entryRuleClassSelector
+entryRuleClassSelector 
+:
+{ before(grammarAccess.getClassSelectorRule()); }
+	 ruleClassSelector
+{ after(grammarAccess.getClassSelectorRule()); } 
+	 EOF 
+;
+
+// Rule ClassSelector
+ruleClassSelector
+    @init {
+		int stackSize = keepStackSize();
+    }
+	:
+(
+{ before(grammarAccess.getClassSelectorAccess().getGroup()); }
+(rule__ClassSelector__Group__0)
+{ after(grammarAccess.getClassSelectorAccess().getGroup()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+
+// Entry rule entryRuleElementSelector
+entryRuleElementSelector 
+:
+{ before(grammarAccess.getElementSelectorRule()); }
+	 ruleElementSelector
+{ after(grammarAccess.getElementSelectorRule()); } 
+	 EOF 
+;
+
+// Rule ElementSelector
+ruleElementSelector
+    @init {
+		int stackSize = keepStackSize();
+    }
+	:
+(
+{ before(grammarAccess.getElementSelectorAccess().getGroup()); }
+(rule__ElementSelector__Group__0)
+{ after(grammarAccess.getElementSelectorAccess().getGroup()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+
+// Entry rule entryRuleUniversalSelector
+entryRuleUniversalSelector 
+:
+{ before(grammarAccess.getUniversalSelectorRule()); }
+	 ruleUniversalSelector
+{ after(grammarAccess.getUniversalSelectorRule()); } 
+	 EOF 
+;
+
+// Rule UniversalSelector
+ruleUniversalSelector
+    @init {
+		int stackSize = keepStackSize();
+    }
+	:
+(
+{ before(grammarAccess.getUniversalSelectorAccess().getGroup()); }
+(rule__UniversalSelector__Group__0)
+{ after(grammarAccess.getUniversalSelectorAccess().getGroup()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+
+// Entry rule entryRuleIdSelector
+entryRuleIdSelector 
+:
+{ before(grammarAccess.getIdSelectorRule()); }
+	 ruleIdSelector
+{ after(grammarAccess.getIdSelectorRule()); } 
+	 EOF 
+;
+
+// Rule IdSelector
+ruleIdSelector
+    @init {
+		int stackSize = keepStackSize();
+    }
+	:
+(
+{ before(grammarAccess.getIdSelectorAccess().getGroup()); }
+(rule__IdSelector__Group__0)
+{ after(grammarAccess.getIdSelectorAccess().getGroup()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+
+// Entry rule entryRulecss_namespace_prefix
+entryRulecss_namespace_prefix 
+:
+{ before(grammarAccess.getCss_namespace_prefixRule()); }
+	 rulecss_namespace_prefix
+{ after(grammarAccess.getCss_namespace_prefixRule()); } 
+	 EOF 
+;
+
+// Rule css_namespace_prefix
+rulecss_namespace_prefix
+    @init {
+		int stackSize = keepStackSize();
+    }
+	:
+(
+{ before(grammarAccess.getCss_namespace_prefixAccess().getGroup()); }
+(rule__Css_namespace_prefix__Group__0)
+{ after(grammarAccess.getCss_namespace_prefixAccess().getGroup()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+
+// Entry rule entryRulecss_declaration
+entryRulecss_declaration 
+@init {
+	HiddenTokens myHiddenTokenState = ((XtextTokenStream)input).setHiddenTokens("RULE_ML_COMMENT");
+}
+:
+{ before(grammarAccess.getCss_declarationRule()); }
+	 rulecss_declaration
+{ after(grammarAccess.getCss_declarationRule()); } 
+	 EOF 
+;
+finally {
+	myHiddenTokenState.restore();
+}
+
+// Rule css_declaration
+rulecss_declaration
+    @init {
+		HiddenTokens myHiddenTokenState = ((XtextTokenStream)input).setHiddenTokens("RULE_ML_COMMENT");
+		int stackSize = keepStackSize();
+    }
+	:
+(
+{ before(grammarAccess.getCss_declarationAccess().getGroup()); }
+(rule__Css_declaration__Group__0)
+{ after(grammarAccess.getCss_declarationAccess().getGroup()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+	myHiddenTokenState.restore();
+}
+
+
+
+// Entry rule entryRulecss_property
+entryRulecss_property 
+:
+{ before(grammarAccess.getCss_propertyRule()); }
+	 rulecss_property
+{ after(grammarAccess.getCss_propertyRule()); } 
+	 EOF 
+;
+
+// Rule css_property
+rulecss_property
+    @init {
+		int stackSize = keepStackSize();
+    }
+	:
+(
+{ before(grammarAccess.getCss_propertyAccess().getGroup()); }
+(rule__Css_property__Group__0)
+{ after(grammarAccess.getCss_propertyAccess().getGroup()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+
+// Entry rule entryRuleValidPropertyIdent
+entryRuleValidPropertyIdent 
+:
+{ before(grammarAccess.getValidPropertyIdentRule()); }
+	 ruleValidPropertyIdent
+{ after(grammarAccess.getValidPropertyIdentRule()); } 
+	 EOF 
+;
+
+// Rule ValidPropertyIdent
+ruleValidPropertyIdent
+    @init {
+		int stackSize = keepStackSize();
+    }
+	:
+(
+{ before(grammarAccess.getValidPropertyIdentAccess().getIdentifierParserRuleCall()); }
+	ruleIdentifier
+{ after(grammarAccess.getValidPropertyIdentAccess().getIdentifierParserRuleCall()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+
+// Entry rule entryRulePseudoClassOrFunc
+entryRulePseudoClassOrFunc 
+:
+{ before(grammarAccess.getPseudoClassOrFuncRule()); }
+	 rulePseudoClassOrFunc
+{ after(grammarAccess.getPseudoClassOrFuncRule()); } 
+	 EOF 
+;
+
+// Rule PseudoClassOrFunc
+rulePseudoClassOrFunc
+    @init {
+		int stackSize = keepStackSize();
+    }
+	:
+(
+{ before(grammarAccess.getPseudoClassOrFuncAccess().getAlternatives()); }
+(rule__PseudoClassOrFunc__Alternatives)
+{ after(grammarAccess.getPseudoClassOrFuncAccess().getAlternatives()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+
+// Entry rule entryRulePseudoClass
+entryRulePseudoClass 
+:
+{ before(grammarAccess.getPseudoClassRule()); }
+	 rulePseudoClass
+{ after(grammarAccess.getPseudoClassRule()); } 
+	 EOF 
+;
+
+// Rule PseudoClass
+rulePseudoClass
+    @init {
+		int stackSize = keepStackSize();
+    }
+	:
+(
+{ before(grammarAccess.getPseudoClassAccess().getGroup()); }
+(rule__PseudoClass__Group__0)
+{ after(grammarAccess.getPseudoClassAccess().getGroup()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+
+// Entry rule entryRulePseudoClassName
+entryRulePseudoClassName 
+:
+{ before(grammarAccess.getPseudoClassNameRule()); }
+	 rulePseudoClassName
+{ after(grammarAccess.getPseudoClassNameRule()); } 
+	 EOF 
+;
+
+// Rule PseudoClassName
+rulePseudoClassName
+    @init {
+		int stackSize = keepStackSize();
+    }
+	:
+(
+{ before(grammarAccess.getPseudoClassNameAccess().getNameAssignment()); }
+(rule__PseudoClassName__NameAssignment)
+{ after(grammarAccess.getPseudoClassNameAccess().getNameAssignment()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+
+// Entry rule entryRulePseudoClassFunction
+entryRulePseudoClassFunction 
+:
+{ before(grammarAccess.getPseudoClassFunctionRule()); }
+	 rulePseudoClassFunction
+{ after(grammarAccess.getPseudoClassFunctionRule()); } 
+	 EOF 
+;
+
+// Rule PseudoClassFunction
+rulePseudoClassFunction
+    @init {
+		int stackSize = keepStackSize();
+    }
+	:
+(
+{ before(grammarAccess.getPseudoClassFunctionAccess().getAlternatives()); }
+(rule__PseudoClassFunction__Alternatives)
+{ after(grammarAccess.getPseudoClassFunctionAccess().getAlternatives()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+
+// Entry rule entryRuleNotFunctionCall
+entryRuleNotFunctionCall 
+@init {
+	HiddenTokens myHiddenTokenState = ((XtextTokenStream)input).setHiddenTokens();
+}
+:
+{ before(grammarAccess.getNotFunctionCallRule()); }
+	 ruleNotFunctionCall
+{ after(grammarAccess.getNotFunctionCallRule()); } 
+	 EOF 
+;
+finally {
+	myHiddenTokenState.restore();
+}
+
+// Rule NotFunctionCall
+ruleNotFunctionCall
+    @init {
+		HiddenTokens myHiddenTokenState = ((XtextTokenStream)input).setHiddenTokens();
+		int stackSize = keepStackSize();
+    }
+	:
+(
+{ before(grammarAccess.getNotFunctionCallAccess().getGroup()); }
+(rule__NotFunctionCall__Group__0)
+{ after(grammarAccess.getNotFunctionCallAccess().getGroup()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+	myHiddenTokenState.restore();
+}
+
+
+
+// Entry rule entryRulecombinator
+entryRulecombinator 
+:
+{ before(grammarAccess.getCombinatorRule()); }
+	 rulecombinator
+{ after(grammarAccess.getCombinatorRule()); } 
+	 EOF 
+;
+
+// Rule combinator
+rulecombinator
+    @init {
+		int stackSize = keepStackSize();
+    }
+	:
+(
+{ before(grammarAccess.getCombinatorAccess().getAlternatives()); }
+(rule__Combinator__Alternatives)
+{ after(grammarAccess.getCombinatorAccess().getAlternatives()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+
+
+
+
+
+// Entry rule entryRuleSymbolTok
+entryRuleSymbolTok 
+:
+{ before(grammarAccess.getSymbolTokRule()); }
+	 ruleSymbolTok
+{ after(grammarAccess.getSymbolTokRule()); } 
+	 EOF 
+;
+
+// Rule SymbolTok
+ruleSymbolTok
+    @init {
+		int stackSize = keepStackSize();
+    }
+	:
+(
+{ before(grammarAccess.getSymbolTokAccess().getGroup()); }
+(rule__SymbolTok__Group__0)
+{ after(grammarAccess.getSymbolTokAccess().getGroup()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+
+// Entry rule entryRuleWSTok
+entryRuleWSTok 
+:
+{ before(grammarAccess.getWSTokRule()); }
+	 ruleWSTok
+{ after(grammarAccess.getWSTokRule()); } 
+	 EOF 
+;
+
+// Rule WSTok
+ruleWSTok
+    @init {
+		int stackSize = keepStackSize();
+    }
+	:
+(
+{ before(grammarAccess.getWSTokAccess().getGroup()); }
+(rule__WSTok__Group__0)
+{ after(grammarAccess.getWSTokAccess().getGroup()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+
+// Entry rule entryRuleStringTok
+entryRuleStringTok 
+:
+{ before(grammarAccess.getStringTokRule()); }
+	 ruleStringTok
+{ after(grammarAccess.getStringTokRule()); } 
+	 EOF 
+;
+
+// Rule StringTok
+ruleStringTok
+    @init {
+		int stackSize = keepStackSize();
+    }
+	:
+(
+{ before(grammarAccess.getStringTokAccess().getGroup()); }
+(rule__StringTok__Group__0)
+{ after(grammarAccess.getStringTokAccess().getGroup()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+
+// Entry rule entryRuleNumberTok
+entryRuleNumberTok 
+@init {
+	HiddenTokens myHiddenTokenState = ((XtextTokenStream)input).setHiddenTokens();
+}
+:
+{ before(grammarAccess.getNumberTokRule()); }
+	 ruleNumberTok
+{ after(grammarAccess.getNumberTokRule()); } 
+	 EOF 
+;
+finally {
+	myHiddenTokenState.restore();
+}
+
+// Rule NumberTok
+ruleNumberTok
+    @init {
+		HiddenTokens myHiddenTokenState = ((XtextTokenStream)input).setHiddenTokens();
+		int stackSize = keepStackSize();
+    }
+	:
+(
+{ before(grammarAccess.getNumberTokAccess().getGroup()); }
+(rule__NumberTok__Group__0)
+{ after(grammarAccess.getNumberTokAccess().getGroup()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+	myHiddenTokenState.restore();
+}
+
+
+
+// Entry rule entryRuleUrlTok
+entryRuleUrlTok 
+:
+{ before(grammarAccess.getUrlTokRule()); }
+	 ruleUrlTok
+{ after(grammarAccess.getUrlTokRule()); } 
+	 EOF 
+;
+
+// Rule UrlTok
+ruleUrlTok
+    @init {
+		int stackSize = keepStackSize();
+    }
+	:
+(
+{ before(grammarAccess.getUrlTokAccess().getGroup()); }
+(rule__UrlTok__Group__0)
+{ after(grammarAccess.getUrlTokAccess().getGroup()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+
+// Entry rule entryRuleColorTok
+entryRuleColorTok 
+@init {
+	HiddenTokens myHiddenTokenState = ((XtextTokenStream)input).setHiddenTokens();
+}
+:
+{ before(grammarAccess.getColorTokRule()); }
+	 ruleColorTok
+{ after(grammarAccess.getColorTokRule()); } 
+	 EOF 
+;
+finally {
+	myHiddenTokenState.restore();
+}
+
+// Rule ColorTok
+ruleColorTok
+    @init {
+		HiddenTokens myHiddenTokenState = ((XtextTokenStream)input).setHiddenTokens();
+		int stackSize = keepStackSize();
+    }
+	:
+(
+{ before(grammarAccess.getColorTokAccess().getGroup()); }
+(rule__ColorTok__Group__0)
+{ after(grammarAccess.getColorTokAccess().getGroup()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+	myHiddenTokenState.restore();
+}
+
+
+
+// Entry rule entryRuleIdentifierOrFuncTok
+entryRuleIdentifierOrFuncTok 
+@init {
+	HiddenTokens myHiddenTokenState = ((XtextTokenStream)input).setHiddenTokens("RULE_ML_COMMENT");
+}
+:
+{ before(grammarAccess.getIdentifierOrFuncTokRule()); }
+	 ruleIdentifierOrFuncTok
+{ after(grammarAccess.getIdentifierOrFuncTokRule()); } 
+	 EOF 
+;
+finally {
+	myHiddenTokenState.restore();
+}
+
+// Rule IdentifierOrFuncTok
+ruleIdentifierOrFuncTok
+    @init {
+		HiddenTokens myHiddenTokenState = ((XtextTokenStream)input).setHiddenTokens("RULE_ML_COMMENT");
+		int stackSize = keepStackSize();
+    }
+	:
+(
+{ before(grammarAccess.getIdentifierOrFuncTokAccess().getGroup()); }
+(rule__IdentifierOrFuncTok__Group__0)
+{ after(grammarAccess.getIdentifierOrFuncTokAccess().getGroup()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+	myHiddenTokenState.restore();
+}
+
+
+
+// Entry rule entryRuleCssTok
+entryRuleCssTok 
+@init {
+	HiddenTokens myHiddenTokenState = ((XtextTokenStream)input).setHiddenTokens("RULE_ML_COMMENT");
+}
+:
+{ before(grammarAccess.getCssTokRule()); }
+	 ruleCssTok
+{ after(grammarAccess.getCssTokRule()); } 
+	 EOF 
+;
+finally {
+	myHiddenTokenState.restore();
+}
+
+// Rule CssTok
+ruleCssTok
+    @init {
+		HiddenTokens myHiddenTokenState = ((XtextTokenStream)input).setHiddenTokens("RULE_ML_COMMENT");
+		int stackSize = keepStackSize();
+    }
+	:
+(
+{ before(grammarAccess.getCssTokAccess().getAlternatives()); }
+(rule__CssTok__Alternatives)
+{ after(grammarAccess.getCssTokAccess().getAlternatives()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+	myHiddenTokenState.restore();
+}
+
+
+
+// Entry rule entryRuleURLType
+entryRuleURLType 
+@init {
+	HiddenTokens myHiddenTokenState = ((XtextTokenStream)input).setHiddenTokens();
+}
+:
+{ before(grammarAccess.getURLTypeRule()); }
+	 ruleURLType
+{ after(grammarAccess.getURLTypeRule()); } 
+	 EOF 
+;
+finally {
+	myHiddenTokenState.restore();
+}
+
+// Rule URLType
+ruleURLType
+    @init {
+		HiddenTokens myHiddenTokenState = ((XtextTokenStream)input).setHiddenTokens();
+		int stackSize = keepStackSize();
+    }
+	:
+(
+{ before(grammarAccess.getURLTypeAccess().getGroup()); }
+(rule__URLType__Group__0)
+{ after(grammarAccess.getURLTypeAccess().getGroup()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+	myHiddenTokenState.restore();
+}
+
+
+
+// Entry rule entryRuleValidURLSymbol
+entryRuleValidURLSymbol 
+:
+{ before(grammarAccess.getValidURLSymbolRule()); }
+	 ruleValidURLSymbol
+{ after(grammarAccess.getValidURLSymbolRule()); } 
+	 EOF 
+;
+
+// Rule ValidURLSymbol
+ruleValidURLSymbol
+    @init {
+		int stackSize = keepStackSize();
+    }
+	:
+(
+{ before(grammarAccess.getValidURLSymbolAccess().getAlternatives()); }
+(rule__ValidURLSymbol__Alternatives)
+{ after(grammarAccess.getValidURLSymbolAccess().getAlternatives()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+
+// Entry rule entryRuleKeywordHack
+entryRuleKeywordHack 
+:
+{ before(grammarAccess.getKeywordHackRule()); }
+	 ruleKeywordHack
+{ after(grammarAccess.getKeywordHackRule()); } 
+	 EOF 
+;
+
+// Rule KeywordHack
+ruleKeywordHack
+    @init {
+		int stackSize = keepStackSize();
+    }
+	:
+(
+{ before(grammarAccess.getKeywordHackAccess().getAlternatives()); }
+(rule__KeywordHack__Alternatives)
+{ after(grammarAccess.getKeywordHackAccess().getAlternatives()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+
+// Entry rule entryRuleValidURL
+entryRuleValidURL 
+@init {
+	HiddenTokens myHiddenTokenState = ((XtextTokenStream)input).setHiddenTokens();
+}
+:
+{ before(grammarAccess.getValidURLRule()); }
+	 ruleValidURL
+{ after(grammarAccess.getValidURLRule()); } 
+	 EOF 
+;
+finally {
+	myHiddenTokenState.restore();
+}
+
+// Rule ValidURL
+ruleValidURL
+    @init {
+		HiddenTokens myHiddenTokenState = ((XtextTokenStream)input).setHiddenTokens();
+		int stackSize = keepStackSize();
+    }
+	:
+(
+{ before(grammarAccess.getValidURLAccess().getAlternatives()); }
+(rule__ValidURL__Alternatives)
+{ after(grammarAccess.getValidURLAccess().getAlternatives()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+	myHiddenTokenState.restore();
+}
+
+
+
+// Entry rule entryRuleIdentifier
+entryRuleIdentifier 
+@init {
+	HiddenTokens myHiddenTokenState = ((XtextTokenStream)input).setHiddenTokens();
+}
+:
+{ before(grammarAccess.getIdentifierRule()); }
+	 ruleIdentifier
+{ after(grammarAccess.getIdentifierRule()); } 
+	 EOF 
+;
+finally {
+	myHiddenTokenState.restore();
+}
+
+// Rule Identifier
+ruleIdentifier
+    @init {
+		HiddenTokens myHiddenTokenState = ((XtextTokenStream)input).setHiddenTokens();
+		int stackSize = keepStackSize();
+    }
+	:
+(
+{ before(grammarAccess.getIdentifierAccess().getGroup()); }
+(rule__Identifier__Group__0)
+{ after(grammarAccess.getIdentifierAccess().getGroup()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+	myHiddenTokenState.restore();
+}
+
+
+
+// Entry rule entryRuleNum
+entryRuleNum 
+@init {
+	HiddenTokens myHiddenTokenState = ((XtextTokenStream)input).setHiddenTokens();
+}
+:
+{ before(grammarAccess.getNumRule()); }
+	 ruleNum
+{ after(grammarAccess.getNumRule()); } 
+	 EOF 
+;
+finally {
+	myHiddenTokenState.restore();
+}
+
+// Rule Num
+ruleNum
+    @init {
+		HiddenTokens myHiddenTokenState = ((XtextTokenStream)input).setHiddenTokens();
+		int stackSize = keepStackSize();
+    }
+	:
+(
+{ before(grammarAccess.getNumAccess().getGroup()); }
+(rule__Num__Group__0)
+{ after(grammarAccess.getNumAccess().getGroup()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+	myHiddenTokenState.restore();
+}
+
+
+
+// Entry rule entryRuleHex
+entryRuleHex 
+:
+{ before(grammarAccess.getHexRule()); }
+	 ruleHex
+{ after(grammarAccess.getHexRule()); } 
+	 EOF 
+;
+
+// Rule Hex
+ruleHex
+    @init {
+		int stackSize = keepStackSize();
+    }
+	:
+(
+{ before(grammarAccess.getHexAccess().getGroup()); }
+(rule__Hex__Group__0)
+{ after(grammarAccess.getHexAccess().getGroup()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+
+
+rule__Stylesheet__Alternatives_2
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getStylesheetAccess().getRulesetAssignment_2_0()); }
+(rule__Stylesheet__RulesetAssignment_2_0)
+{ after(grammarAccess.getStylesheetAccess().getRulesetAssignment_2_0()); }
+)
+
+    |(
+{ before(grammarAccess.getStylesheetAccess().getMediaAssignment_2_1()); }
+(rule__Stylesheet__MediaAssignment_2_1)
+{ after(grammarAccess.getStylesheetAccess().getMediaAssignment_2_1()); }
+)
+
+    |(
+{ before(grammarAccess.getStylesheetAccess().getPageAssignment_2_2()); }
+(rule__Stylesheet__PageAssignment_2_2)
+{ after(grammarAccess.getStylesheetAccess().getPageAssignment_2_2()); }
+)
+
+    |(
+{ before(grammarAccess.getStylesheetAccess().getFont_faceAssignment_2_3()); }
+(rule__Stylesheet__Font_faceAssignment_2_3)
+{ after(grammarAccess.getStylesheetAccess().getFont_faceAssignment_2_3()); }
+)
+
+    |(
+{ before(grammarAccess.getStylesheetAccess().getKeyframesAssignment_2_4()); }
+(rule__Stylesheet__KeyframesAssignment_2_4)
+{ after(grammarAccess.getStylesheetAccess().getKeyframesAssignment_2_4()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Charset__Alternatives_0
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getCharsetAccess().getCharsetKeyword_0_0()); }
+
+	'@charset' 
+
+{ after(grammarAccess.getCharsetAccess().getCharsetKeyword_0_0()); }
+)
+
+    |(
+{ before(grammarAccess.getCharsetAccess().getCHARSETKeyword_0_1()); }
+
+	'@CHARSET' 
+
+{ after(grammarAccess.getCharsetAccess().getCHARSETKeyword_0_1()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__ImportExpression__Alternatives_0
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getImportExpressionAccess().getImportKeyword_0_0()); }
+
+	'@import' 
+
+{ after(grammarAccess.getImportExpressionAccess().getImportKeyword_0_0()); }
+)
+
+    |(
+{ before(grammarAccess.getImportExpressionAccess().getIMPORTKeyword_0_1()); }
+
+	'@IMPORT' 
+
+{ after(grammarAccess.getImportExpressionAccess().getIMPORTKeyword_0_1()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__ImportExpression__Alternatives_1
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getImportExpressionAccess().getValueAssignment_1_0()); }
+(rule__ImportExpression__ValueAssignment_1_0)
+{ after(grammarAccess.getImportExpressionAccess().getValueAssignment_1_0()); }
+)
+
+    |(
+{ before(grammarAccess.getImportExpressionAccess().getGroup_1_1()); }
+(rule__ImportExpression__Group_1_1__0)
+{ after(grammarAccess.getImportExpressionAccess().getGroup_1_1()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Page__Alternatives_1
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getPageAccess().getPageKeyword_1_0()); }
+
+	'@page' 
+
+{ after(grammarAccess.getPageAccess().getPageKeyword_1_0()); }
+)
+
+    |(
+{ before(grammarAccess.getPageAccess().getPAGEKeyword_1_1()); }
+
+	'@PAGE' 
+
+{ after(grammarAccess.getPageAccess().getPAGEKeyword_1_1()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Media__Alternatives_0
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getMediaAccess().getMediaKeyword_0_0()); }
+
+	'@media' 
+
+{ after(grammarAccess.getMediaAccess().getMediaKeyword_0_0()); }
+)
+
+    |(
+{ before(grammarAccess.getMediaAccess().getMEDIAKeyword_0_1()); }
+
+	'@MEDIA' 
+
+{ after(grammarAccess.getMediaAccess().getMEDIAKeyword_0_1()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Font_face__Alternatives_1
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getFont_faceAccess().getFontFaceKeyword_1_0()); }
+
+	'@font-face' 
+
+{ after(grammarAccess.getFont_faceAccess().getFontFaceKeyword_1_0()); }
+)
+
+    |(
+{ before(grammarAccess.getFont_faceAccess().getFONTFACEKeyword_1_1()); }
+
+	'@FONT-FACE' 
+
+{ after(grammarAccess.getFont_faceAccess().getFONTFACEKeyword_1_1()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Keyframes__Alternatives_1
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getKeyframesAccess().getKeyframesKeyword_1_0()); }
+
+	'@keyframes' 
+
+{ after(grammarAccess.getKeyframesAccess().getKeyframesKeyword_1_0()); }
+)
+
+    |(
+{ before(grammarAccess.getKeyframesAccess().getKEYFRAMESKeyword_1_1()); }
+
+	'@KEYFRAMES' 
+
+{ after(grammarAccess.getKeyframesAccess().getKEYFRAMESKeyword_1_1()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Keyframe_selector__Alternatives_0
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getKeyframe_selectorAccess().getTypeAssignment_0_0()); }
+(rule__Keyframe_selector__TypeAssignment_0_0)
+{ after(grammarAccess.getKeyframe_selectorAccess().getTypeAssignment_0_0()); }
+)
+
+    |(
+{ before(grammarAccess.getKeyframe_selectorAccess().getGroup_0_1()); }
+(rule__Keyframe_selector__Group_0_1__0)
+{ after(grammarAccess.getKeyframe_selectorAccess().getGroup_0_1()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Selector__Alternatives_1
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getSelectorAccess().getGroup_1_0()); }
+(rule__Selector__Group_1_0__0)
+{ after(grammarAccess.getSelectorAccess().getGroup_1_0()); }
+)
+
+    |(
+{ before(grammarAccess.getSelectorAccess().getGroup_1_1()); }
+(rule__Selector__Group_1_1__0)
+{ after(grammarAccess.getSelectorAccess().getGroup_1_1()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__SimpleSelectorForNegation__Alternatives
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getSimpleSelectorForNegationAccess().getGroup_0()); }
+(rule__SimpleSelectorForNegation__Group_0__0)
+{ after(grammarAccess.getSimpleSelectorForNegationAccess().getGroup_0()); }
+)
+
+    |(
+(
+{ before(grammarAccess.getSimpleSelectorForNegationAccess().getSubSelectorsAssignment_1()); }
+(rule__SimpleSelectorForNegation__SubSelectorsAssignment_1)
+{ after(grammarAccess.getSimpleSelectorForNegationAccess().getSubSelectorsAssignment_1()); }
+)
+(
+{ before(grammarAccess.getSimpleSelectorForNegationAccess().getSubSelectorsAssignment_1()); }
+(rule__SimpleSelectorForNegation__SubSelectorsAssignment_1)*
+{ after(grammarAccess.getSimpleSelectorForNegationAccess().getSubSelectorsAssignment_1()); }
+)
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__SimpleSelectorForNegation__Alternatives_0_0
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getSimpleSelectorForNegationAccess().getElementAssignment_0_0_0()); }
+(rule__SimpleSelectorForNegation__ElementAssignment_0_0_0)
+{ after(grammarAccess.getSimpleSelectorForNegationAccess().getElementAssignment_0_0_0()); }
+)
+
+    |(
+{ before(grammarAccess.getSimpleSelectorForNegationAccess().getUniversalAssignment_0_0_1()); }
+(rule__SimpleSelectorForNegation__UniversalAssignment_0_0_1)
+{ after(grammarAccess.getSimpleSelectorForNegationAccess().getUniversalAssignment_0_0_1()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__SubSelectorForNegation__Alternatives
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getSubSelectorForNegationAccess().getIdSelectorParserRuleCall_0()); }
+	ruleIdSelector
+{ after(grammarAccess.getSubSelectorForNegationAccess().getIdSelectorParserRuleCall_0()); }
+)
+
+    |(
+{ before(grammarAccess.getSubSelectorForNegationAccess().getClassSelectorParserRuleCall_1()); }
+	ruleClassSelector
+{ after(grammarAccess.getSubSelectorForNegationAccess().getClassSelectorParserRuleCall_1()); }
+)
+
+    |(
+{ before(grammarAccess.getSubSelectorForNegationAccess().getAttributeSelectorParserRuleCall_2()); }
+	ruleAttributeSelector
+{ after(grammarAccess.getSubSelectorForNegationAccess().getAttributeSelectorParserRuleCall_2()); }
+)
+
+    |(
+{ before(grammarAccess.getSubSelectorForNegationAccess().getPseudoClassParserRuleCall_3()); }
+	rulePseudoClass
+{ after(grammarAccess.getSubSelectorForNegationAccess().getPseudoClassParserRuleCall_3()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Simple_selector__Alternatives
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getSimple_selectorAccess().getGroup_0()); }
+(rule__Simple_selector__Group_0__0)
+{ after(grammarAccess.getSimple_selectorAccess().getGroup_0()); }
+)
+
+    |(
+(
+{ before(grammarAccess.getSimple_selectorAccess().getSubSelectorsAssignment_1()); }
+(rule__Simple_selector__SubSelectorsAssignment_1)
+{ after(grammarAccess.getSimple_selectorAccess().getSubSelectorsAssignment_1()); }
+)
+(
+{ before(grammarAccess.getSimple_selectorAccess().getSubSelectorsAssignment_1()); }
+(rule__Simple_selector__SubSelectorsAssignment_1)*
+{ after(grammarAccess.getSimple_selectorAccess().getSubSelectorsAssignment_1()); }
+)
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Simple_selector__Alternatives_0_0
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getSimple_selectorAccess().getElementAssignment_0_0_0()); }
+(rule__Simple_selector__ElementAssignment_0_0_0)
+{ after(grammarAccess.getSimple_selectorAccess().getElementAssignment_0_0_0()); }
+)
+
+    |(
+{ before(grammarAccess.getSimple_selectorAccess().getUniversalAssignment_0_0_1()); }
+(rule__Simple_selector__UniversalAssignment_0_0_1)
+{ after(grammarAccess.getSimple_selectorAccess().getUniversalAssignment_0_0_1()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__SubSelector__Alternatives
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getSubSelectorAccess().getIdSelectorParserRuleCall_0()); }
+	ruleIdSelector
+{ after(grammarAccess.getSubSelectorAccess().getIdSelectorParserRuleCall_0()); }
+)
+
+    |(
+{ before(grammarAccess.getSubSelectorAccess().getClassSelectorParserRuleCall_1()); }
+	ruleClassSelector
+{ after(grammarAccess.getSubSelectorAccess().getClassSelectorParserRuleCall_1()); }
+)
+
+    |(
+{ before(grammarAccess.getSubSelectorAccess().getAttributeSelectorParserRuleCall_2()); }
+	ruleAttributeSelector
+{ after(grammarAccess.getSubSelectorAccess().getAttributeSelectorParserRuleCall_2()); }
+)
+
+    |(
+{ before(grammarAccess.getSubSelectorAccess().getPseudoClassOrFuncParserRuleCall_3()); }
+	rulePseudoClassOrFunc
+{ after(grammarAccess.getSubSelectorAccess().getPseudoClassOrFuncParserRuleCall_3()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__AttributeSelector__OpAlternatives_3_0_0
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getAttributeSelectorAccess().getOpCircumflexAccentEqualsSignKeyword_3_0_0_0()); }
+
+	'^=' 
+
+{ after(grammarAccess.getAttributeSelectorAccess().getOpCircumflexAccentEqualsSignKeyword_3_0_0_0()); }
+)
+
+    |(
+{ before(grammarAccess.getAttributeSelectorAccess().getOpDollarSignEqualsSignKeyword_3_0_0_1()); }
+
+	'$=' 
+
+{ after(grammarAccess.getAttributeSelectorAccess().getOpDollarSignEqualsSignKeyword_3_0_0_1()); }
+)
+
+    |(
+{ before(grammarAccess.getAttributeSelectorAccess().getOpAsteriskEqualsSignKeyword_3_0_0_2()); }
+
+	'*=' 
+
+{ after(grammarAccess.getAttributeSelectorAccess().getOpAsteriskEqualsSignKeyword_3_0_0_2()); }
+)
+
+    |(
+{ before(grammarAccess.getAttributeSelectorAccess().getOpEqualsSignKeyword_3_0_0_3()); }
+
+	'=' 
+
+{ after(grammarAccess.getAttributeSelectorAccess().getOpEqualsSignKeyword_3_0_0_3()); }
+)
+
+    |(
+{ before(grammarAccess.getAttributeSelectorAccess().getOpINCLUDESTerminalRuleCall_3_0_0_4()); }
+	RULE_INCLUDES
+{ after(grammarAccess.getAttributeSelectorAccess().getOpINCLUDESTerminalRuleCall_3_0_0_4()); }
+)
+
+    |(
+{ before(grammarAccess.getAttributeSelectorAccess().getOpDASHMATCHTerminalRuleCall_3_0_0_5()); }
+	RULE_DASHMATCH
+{ after(grammarAccess.getAttributeSelectorAccess().getOpDASHMATCHTerminalRuleCall_3_0_0_5()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__AttributeSelector__ValueAlternatives_3_1_0
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getAttributeSelectorAccess().getValueIdentifierParserRuleCall_3_1_0_0()); }
+	ruleIdentifier
+{ after(grammarAccess.getAttributeSelectorAccess().getValueIdentifierParserRuleCall_3_1_0_0()); }
+)
+
+    |(
+{ before(grammarAccess.getAttributeSelectorAccess().getValueCSSSTRINGTerminalRuleCall_3_1_0_1()); }
+	RULE_CSSSTRING
+{ after(grammarAccess.getAttributeSelectorAccess().getValueCSSSTRINGTerminalRuleCall_3_1_0_1()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Css_namespace_prefix__Alternatives_0
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getCss_namespace_prefixAccess().getIdentifierParserRuleCall_0_0()); }
+	ruleIdentifier
+{ after(grammarAccess.getCss_namespace_prefixAccess().getIdentifierParserRuleCall_0_0()); }
+)
+
+    |(
+{ before(grammarAccess.getCss_namespace_prefixAccess().getAsteriskKeyword_0_1()); }
+
+	'*' 
+
+{ after(grammarAccess.getCss_namespace_prefixAccess().getAsteriskKeyword_0_1()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__PseudoClassOrFunc__Alternatives
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getPseudoClassOrFuncAccess().getPseudoClassParserRuleCall_0()); }
+	rulePseudoClass
+{ after(grammarAccess.getPseudoClassOrFuncAccess().getPseudoClassParserRuleCall_0()); }
+)
+
+    |(
+{ before(grammarAccess.getPseudoClassOrFuncAccess().getPseudoClassFunctionParserRuleCall_1()); }
+	rulePseudoClassFunction
+{ after(grammarAccess.getPseudoClassOrFuncAccess().getPseudoClassFunctionParserRuleCall_1()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__PseudoClassFunction__Alternatives
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getPseudoClassFunctionAccess().getGroup_0()); }
+(rule__PseudoClassFunction__Group_0__0)
+{ after(grammarAccess.getPseudoClassFunctionAccess().getGroup_0()); }
+)
+
+    |(
+{ before(grammarAccess.getPseudoClassFunctionAccess().getGroup_1()); }
+(rule__PseudoClassFunction__Group_1__0)
+{ after(grammarAccess.getPseudoClassFunctionAccess().getGroup_1()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Combinator__Alternatives
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getCombinatorAccess().getPLUSTerminalRuleCall_0()); }
+	RULE_PLUS
+{ after(grammarAccess.getCombinatorAccess().getPLUSTerminalRuleCall_0()); }
+)
+
+    |(
+{ before(grammarAccess.getCombinatorAccess().getGreaterThanSignKeyword_1()); }
+
+	'>' 
+
+{ after(grammarAccess.getCombinatorAccess().getGreaterThanSignKeyword_1()); }
+)
+
+    |(
+{ before(grammarAccess.getCombinatorAccess().getTildeKeyword_2()); }
+
+	'~' 
+
+{ after(grammarAccess.getCombinatorAccess().getTildeKeyword_2()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+
+rule__SymbolTok__SymbolAlternatives_1_0
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getSymbolTokAccess().getSymbolCOMMATerminalRuleCall_1_0_0()); }
+	RULE_COMMA
+{ after(grammarAccess.getSymbolTokAccess().getSymbolCOMMATerminalRuleCall_1_0_0()); }
+)
+
+    |(
+{ before(grammarAccess.getSymbolTokAccess().getSymbolPERCENTTerminalRuleCall_1_0_1()); }
+	RULE_PERCENT
+{ after(grammarAccess.getSymbolTokAccess().getSymbolPERCENTTerminalRuleCall_1_0_1()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__CssTok__Alternatives
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getCssTokAccess().getIdentifierOrFuncTokParserRuleCall_0()); }
+	ruleIdentifierOrFuncTok
+{ after(grammarAccess.getCssTokAccess().getIdentifierOrFuncTokParserRuleCall_0()); }
+)
+
+    |(
+{ before(grammarAccess.getCssTokAccess().getSymbolTokParserRuleCall_1()); }
+	ruleSymbolTok
+{ after(grammarAccess.getCssTokAccess().getSymbolTokParserRuleCall_1()); }
+)
+
+    |(
+{ before(grammarAccess.getCssTokAccess().getWSTokParserRuleCall_2()); }
+	ruleWSTok
+{ after(grammarAccess.getCssTokAccess().getWSTokParserRuleCall_2()); }
+)
+
+    |(
+{ before(grammarAccess.getCssTokAccess().getStringTokParserRuleCall_3()); }
+	ruleStringTok
+{ after(grammarAccess.getCssTokAccess().getStringTokParserRuleCall_3()); }
+)
+
+    |(
+{ before(grammarAccess.getCssTokAccess().getNumberTokParserRuleCall_4()); }
+	ruleNumberTok
+{ after(grammarAccess.getCssTokAccess().getNumberTokParserRuleCall_4()); }
+)
+
+    |(
+{ before(grammarAccess.getCssTokAccess().getUrlTokParserRuleCall_5()); }
+	ruleUrlTok
+{ after(grammarAccess.getCssTokAccess().getUrlTokParserRuleCall_5()); }
+)
+
+    |(
+{ before(grammarAccess.getCssTokAccess().getColorTokParserRuleCall_6()); }
+	ruleColorTok
+{ after(grammarAccess.getCssTokAccess().getColorTokParserRuleCall_6()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__ValidURLSymbol__Alternatives
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getValidURLSymbolAccess().getDASHTerminalRuleCall_0()); }
+	RULE_DASH
+{ after(grammarAccess.getValidURLSymbolAccess().getDASHTerminalRuleCall_0()); }
+)
+
+    |(
+{ before(grammarAccess.getValidURLSymbolAccess().getFullStopKeyword_1()); }
+
+	'.' 
+
+{ after(grammarAccess.getValidURLSymbolAccess().getFullStopKeyword_1()); }
+)
+
+    |(
+{ before(grammarAccess.getValidURLSymbolAccess().getUNDERSCORETerminalRuleCall_2()); }
+	RULE_UNDERSCORE
+{ after(grammarAccess.getValidURLSymbolAccess().getUNDERSCORETerminalRuleCall_2()); }
+)
+
+    |(
+{ before(grammarAccess.getValidURLSymbolAccess().getTildeKeyword_3()); }
+
+	'~' 
+
+{ after(grammarAccess.getValidURLSymbolAccess().getTildeKeyword_3()); }
+)
+
+    |(
+{ before(grammarAccess.getValidURLSymbolAccess().getCOLONTerminalRuleCall_4()); }
+	RULE_COLON
+{ after(grammarAccess.getValidURLSymbolAccess().getCOLONTerminalRuleCall_4()); }
+)
+
+    |(
+{ before(grammarAccess.getValidURLSymbolAccess().getSolidusKeyword_5()); }
+
+	'/' 
+
+{ after(grammarAccess.getValidURLSymbolAccess().getSolidusKeyword_5()); }
+)
+
+    |(
+{ before(grammarAccess.getValidURLSymbolAccess().getQuestionMarkKeyword_6()); }
+
+	'?' 
+
+{ after(grammarAccess.getValidURLSymbolAccess().getQuestionMarkKeyword_6()); }
+)
+
+    |(
+{ before(grammarAccess.getValidURLSymbolAccess().getHASHMARKTerminalRuleCall_7()); }
+	RULE_HASHMARK
+{ after(grammarAccess.getValidURLSymbolAccess().getHASHMARKTerminalRuleCall_7()); }
+)
+
+    |(
+{ before(grammarAccess.getValidURLSymbolAccess().getLeftSquareBracketKeyword_8()); }
+
+	'[' 
+
+{ after(grammarAccess.getValidURLSymbolAccess().getLeftSquareBracketKeyword_8()); }
+)
+
+    |(
+{ before(grammarAccess.getValidURLSymbolAccess().getRightSquareBracketKeyword_9()); }
+
+	']' 
+
+{ after(grammarAccess.getValidURLSymbolAccess().getRightSquareBracketKeyword_9()); }
+)
+
+    |(
+{ before(grammarAccess.getValidURLSymbolAccess().getCommercialAtKeyword_10()); }
+
+	'@' 
+
+{ after(grammarAccess.getValidURLSymbolAccess().getCommercialAtKeyword_10()); }
+)
+
+    |(
+{ before(grammarAccess.getValidURLSymbolAccess().getExclamationMarkKeyword_11()); }
+
+	'!' 
+
+{ after(grammarAccess.getValidURLSymbolAccess().getExclamationMarkKeyword_11()); }
+)
+
+    |(
+{ before(grammarAccess.getValidURLSymbolAccess().getDollarSignKeyword_12()); }
+
+	'$' 
+
+{ after(grammarAccess.getValidURLSymbolAccess().getDollarSignKeyword_12()); }
+)
+
+    |(
+{ before(grammarAccess.getValidURLSymbolAccess().getAmpersandKeyword_13()); }
+
+	'&' 
+
+{ after(grammarAccess.getValidURLSymbolAccess().getAmpersandKeyword_13()); }
+)
+
+    |(
+{ before(grammarAccess.getValidURLSymbolAccess().getAsteriskKeyword_14()); }
+
+	'*' 
+
+{ after(grammarAccess.getValidURLSymbolAccess().getAsteriskKeyword_14()); }
+)
+
+    |(
+{ before(grammarAccess.getValidURLSymbolAccess().getPLUSTerminalRuleCall_15()); }
+	RULE_PLUS
+{ after(grammarAccess.getValidURLSymbolAccess().getPLUSTerminalRuleCall_15()); }
+)
+
+    |(
+{ before(grammarAccess.getValidURLSymbolAccess().getCOMMATerminalRuleCall_16()); }
+	RULE_COMMA
+{ after(grammarAccess.getValidURLSymbolAccess().getCOMMATerminalRuleCall_16()); }
+)
+
+    |(
+{ before(grammarAccess.getValidURLSymbolAccess().getSemicolonKeyword_17()); }
+
+	';' 
+
+{ after(grammarAccess.getValidURLSymbolAccess().getSemicolonKeyword_17()); }
+)
+
+    |(
+{ before(grammarAccess.getValidURLSymbolAccess().getGroup_18()); }
+(rule__ValidURLSymbol__Group_18__0)
+{ after(grammarAccess.getValidURLSymbolAccess().getGroup_18()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__KeywordHack__Alternatives
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getKeywordHackAccess().getNotKeyword_0()); }
+
+	'not' 
+
+{ after(grammarAccess.getKeywordHackAccess().getNotKeyword_0()); }
+)
+
+    |(
+{ before(grammarAccess.getKeywordHackAccess().getNoKeyword_1()); }
+
+	'no' 
+
+{ after(grammarAccess.getKeywordHackAccess().getNoKeyword_1()); }
+)
+
+    |(
+{ before(grammarAccess.getKeywordHackAccess().getUrlKeyword_2()); }
+
+	'url' 
+
+{ after(grammarAccess.getKeywordHackAccess().getUrlKeyword_2()); }
+)
+
+    |(
+{ before(grammarAccess.getKeywordHackAccess().getUrKeyword_3()); }
+
+	'ur' 
+
+{ after(grammarAccess.getKeywordHackAccess().getUrKeyword_3()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__ValidURL__Alternatives
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getValidURLAccess().getCSSSTRINGTerminalRuleCall_0()); }
+	RULE_CSSSTRING
+{ after(grammarAccess.getValidURLAccess().getCSSSTRINGTerminalRuleCall_0()); }
+)
+
+    |(
+(
+{ before(grammarAccess.getValidURLAccess().getAlternatives_1()); }
+(rule__ValidURL__Alternatives_1)
+{ after(grammarAccess.getValidURLAccess().getAlternatives_1()); }
+)
+(
+{ before(grammarAccess.getValidURLAccess().getAlternatives_1()); }
+(rule__ValidURL__Alternatives_1)*
+{ after(grammarAccess.getValidURLAccess().getAlternatives_1()); }
+)
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__ValidURL__Alternatives_1
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getValidURLAccess().getValidURLSymbolParserRuleCall_1_0()); }
+	ruleValidURLSymbol
+{ after(grammarAccess.getValidURLAccess().getValidURLSymbolParserRuleCall_1_0()); }
+)
+
+    |(
+{ before(grammarAccess.getValidURLAccess().getKeywordHackParserRuleCall_1_1()); }
+	ruleKeywordHack
+{ after(grammarAccess.getValidURLAccess().getKeywordHackParserRuleCall_1_1()); }
+)
+
+    |(
+{ before(grammarAccess.getValidURLAccess().getONE_HEX_LETTERTerminalRuleCall_1_2()); }
+	RULE_ONE_HEX_LETTER
+{ after(grammarAccess.getValidURLAccess().getONE_HEX_LETTERTerminalRuleCall_1_2()); }
+)
+
+    |(
+{ before(grammarAccess.getValidURLAccess().getONE_NON_HEX_LETTERTerminalRuleCall_1_3()); }
+	RULE_ONE_NON_HEX_LETTER
+{ after(grammarAccess.getValidURLAccess().getONE_NON_HEX_LETTERTerminalRuleCall_1_3()); }
+)
+
+    |(
+{ before(grammarAccess.getValidURLAccess().getONE_INTTerminalRuleCall_1_4()); }
+	RULE_ONE_INT
+{ after(grammarAccess.getValidURLAccess().getONE_INTTerminalRuleCall_1_4()); }
+)
+
+    |(
+{ before(grammarAccess.getValidURLAccess().getReverseSolidusSpaceKeyword_1_5()); }
+
+	'\\ ' 
+
+{ after(grammarAccess.getValidURLAccess().getReverseSolidusSpaceKeyword_1_5()); }
+)
+
+    |(
+{ before(grammarAccess.getValidURLAccess().getReverseSolidusLeftParenthesisKeyword_1_6()); }
+
+	'\\(' 
+
+{ after(grammarAccess.getValidURLAccess().getReverseSolidusLeftParenthesisKeyword_1_6()); }
+)
+
+    |(
+{ before(grammarAccess.getValidURLAccess().getReverseSolidusRightParenthesisKeyword_1_7()); }
+
+	'\\)' 
+
+{ after(grammarAccess.getValidURLAccess().getReverseSolidusRightParenthesisKeyword_1_7()); }
+)
+
+    |(
+{ before(grammarAccess.getValidURLAccess().getReverseSolidusApostropheKeyword_1_8()); }
+
+	'\\\'' 
+
+{ after(grammarAccess.getValidURLAccess().getReverseSolidusApostropheKeyword_1_8()); }
+)
+
+    |(
+{ before(grammarAccess.getValidURLAccess().getReverseSolidusQuotationMarkKeyword_1_9()); }
+
+	'\\"' 
+
+{ after(grammarAccess.getValidURLAccess().getReverseSolidusQuotationMarkKeyword_1_9()); }
+)
+
+    |(
+{ before(grammarAccess.getValidURLAccess().getGroup_1_10()); }
+(rule__ValidURL__Group_1_10__0)
+{ after(grammarAccess.getValidURLAccess().getGroup_1_10()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__ValidURL__Alternatives_1_10_1
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getValidURLAccess().getONE_INTTerminalRuleCall_1_10_1_0()); }
+	RULE_ONE_INT
+{ after(grammarAccess.getValidURLAccess().getONE_INTTerminalRuleCall_1_10_1_0()); }
+)
+
+    |(
+{ before(grammarAccess.getValidURLAccess().getONE_HEX_LETTERTerminalRuleCall_1_10_1_1()); }
+	RULE_ONE_HEX_LETTER
+{ after(grammarAccess.getValidURLAccess().getONE_HEX_LETTERTerminalRuleCall_1_10_1_1()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__ValidURL__Alternatives_1_10_2
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getValidURLAccess().getONE_INTTerminalRuleCall_1_10_2_0()); }
+	RULE_ONE_INT
+{ after(grammarAccess.getValidURLAccess().getONE_INTTerminalRuleCall_1_10_2_0()); }
+)
+
+    |(
+{ before(grammarAccess.getValidURLAccess().getONE_HEX_LETTERTerminalRuleCall_1_10_2_1()); }
+	RULE_ONE_HEX_LETTER
+{ after(grammarAccess.getValidURLAccess().getONE_HEX_LETTERTerminalRuleCall_1_10_2_1()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Identifier__Alternatives_1
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getIdentifierAccess().getUNDERSCORETerminalRuleCall_1_0()); }
+	RULE_UNDERSCORE
+{ after(grammarAccess.getIdentifierAccess().getUNDERSCORETerminalRuleCall_1_0()); }
+)
+
+    |(
+{ before(grammarAccess.getIdentifierAccess().getONE_HEX_LETTERTerminalRuleCall_1_1()); }
+	RULE_ONE_HEX_LETTER
+{ after(grammarAccess.getIdentifierAccess().getONE_HEX_LETTERTerminalRuleCall_1_1()); }
+)
+
+    |(
+{ before(grammarAccess.getIdentifierAccess().getONE_NON_HEX_LETTERTerminalRuleCall_1_2()); }
+	RULE_ONE_NON_HEX_LETTER
+{ after(grammarAccess.getIdentifierAccess().getONE_NON_HEX_LETTERTerminalRuleCall_1_2()); }
+)
+
+    |(
+{ before(grammarAccess.getIdentifierAccess().getKeywordHackParserRuleCall_1_3()); }
+	ruleKeywordHack
+{ after(grammarAccess.getIdentifierAccess().getKeywordHackParserRuleCall_1_3()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Identifier__Alternatives_2_0
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getIdentifierAccess().getUNDERSCORETerminalRuleCall_2_0_0()); }
+	RULE_UNDERSCORE
+{ after(grammarAccess.getIdentifierAccess().getUNDERSCORETerminalRuleCall_2_0_0()); }
+)
+
+    |(
+{ before(grammarAccess.getIdentifierAccess().getDASHTerminalRuleCall_2_0_1()); }
+	RULE_DASH
+{ after(grammarAccess.getIdentifierAccess().getDASHTerminalRuleCall_2_0_1()); }
+)
+
+    |(
+{ before(grammarAccess.getIdentifierAccess().getONE_HEX_LETTERTerminalRuleCall_2_0_2()); }
+	RULE_ONE_HEX_LETTER
+{ after(grammarAccess.getIdentifierAccess().getONE_HEX_LETTERTerminalRuleCall_2_0_2()); }
+)
+
+    |(
+{ before(grammarAccess.getIdentifierAccess().getONE_NON_HEX_LETTERTerminalRuleCall_2_0_3()); }
+	RULE_ONE_NON_HEX_LETTER
+{ after(grammarAccess.getIdentifierAccess().getONE_NON_HEX_LETTERTerminalRuleCall_2_0_3()); }
+)
+
+    |(
+{ before(grammarAccess.getIdentifierAccess().getONE_INTTerminalRuleCall_2_0_4()); }
+	RULE_ONE_INT
+{ after(grammarAccess.getIdentifierAccess().getONE_INTTerminalRuleCall_2_0_4()); }
+)
+
+    |(
+{ before(grammarAccess.getIdentifierAccess().getKeywordHackParserRuleCall_2_0_5()); }
+	ruleKeywordHack
+{ after(grammarAccess.getIdentifierAccess().getKeywordHackParserRuleCall_2_0_5()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Num__Alternatives_0
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getNumAccess().getPLUSTerminalRuleCall_0_0()); }
+	RULE_PLUS
+{ after(grammarAccess.getNumAccess().getPLUSTerminalRuleCall_0_0()); }
+)
+
+    |(
+{ before(grammarAccess.getNumAccess().getDASHTerminalRuleCall_0_1()); }
+	RULE_DASH
+{ after(grammarAccess.getNumAccess().getDASHTerminalRuleCall_0_1()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Num__Alternatives_1
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getNumAccess().getGroup_1_0()); }
+(rule__Num__Group_1_0__0)
+{ after(grammarAccess.getNumAccess().getGroup_1_0()); }
+)
+
+    |(
+{ before(grammarAccess.getNumAccess().getGroup_1_1()); }
+(rule__Num__Group_1_1__0)
+{ after(grammarAccess.getNumAccess().getGroup_1_1()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Hex__Alternatives_1_0
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getHexAccess().getONE_INTTerminalRuleCall_1_0_0()); }
+	RULE_ONE_INT
+{ after(grammarAccess.getHexAccess().getONE_INTTerminalRuleCall_1_0_0()); }
+)
+
+    |(
+{ before(grammarAccess.getHexAccess().getONE_HEX_LETTERTerminalRuleCall_1_0_1()); }
+	RULE_ONE_HEX_LETTER
+{ after(grammarAccess.getHexAccess().getONE_HEX_LETTERTerminalRuleCall_1_0_1()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+
+rule__Stylesheet__Group__0
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__Stylesheet__Group__0__Impl
+	rule__Stylesheet__Group__1
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Stylesheet__Group__0__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getStylesheetAccess().getCharsetAssignment_0()); }
+(rule__Stylesheet__CharsetAssignment_0)?
+{ after(grammarAccess.getStylesheetAccess().getCharsetAssignment_0()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+rule__Stylesheet__Group__1
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__Stylesheet__Group__1__Impl
+	rule__Stylesheet__Group__2
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Stylesheet__Group__1__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getStylesheetAccess().getImportsAssignment_1()); }
+(rule__Stylesheet__ImportsAssignment_1)*
+{ after(grammarAccess.getStylesheetAccess().getImportsAssignment_1()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+rule__Stylesheet__Group__2
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__Stylesheet__Group__2__Impl
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Stylesheet__Group__2__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getStylesheetAccess().getAlternatives_2()); }
+(rule__Stylesheet__Alternatives_2)*
+{ after(grammarAccess.getStylesheetAccess().getAlternatives_2()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+
+
+
+
+
+
+rule__Charset__Group__0
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__Charset__Group__0__Impl
+	rule__Charset__Group__1
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Charset__Group__0__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getCharsetAccess().getAlternatives_0()); }
+(rule__Charset__Alternatives_0)
+{ after(grammarAccess.getCharsetAccess().getAlternatives_0()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+rule__Charset__Group__1
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__Charset__Group__1__Impl
+	rule__Charset__Group__2
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Charset__Group__1__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getCharsetAccess().getCharsetAssignment_1()); }
+(rule__Charset__CharsetAssignment_1)
+{ after(grammarAccess.getCharsetAccess().getCharsetAssignment_1()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+rule__Charset__Group__2
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__Charset__Group__2__Impl
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Charset__Group__2__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getCharsetAccess().getSemicolonKeyword_2()); }
+
+	';' 
+
+{ after(grammarAccess.getCharsetAccess().getSemicolonKeyword_2()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+
+
+
+
+
+
+rule__ImportExpression__Group__0
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__ImportExpression__Group__0__Impl
+	rule__ImportExpression__Group__1
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__ImportExpression__Group__0__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getImportExpressionAccess().getAlternatives_0()); }
+(rule__ImportExpression__Alternatives_0)
+{ after(grammarAccess.getImportExpressionAccess().getAlternatives_0()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+rule__ImportExpression__Group__1
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__ImportExpression__Group__1__Impl
+	rule__ImportExpression__Group__2
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__ImportExpression__Group__1__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getImportExpressionAccess().getAlternatives_1()); }
+(rule__ImportExpression__Alternatives_1)
+{ after(grammarAccess.getImportExpressionAccess().getAlternatives_1()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+rule__ImportExpression__Group__2
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__ImportExpression__Group__2__Impl
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__ImportExpression__Group__2__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getImportExpressionAccess().getSemicolonKeyword_2()); }
+
+	';' 
+
+{ after(grammarAccess.getImportExpressionAccess().getSemicolonKeyword_2()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+
+
+
+
+
+
+rule__ImportExpression__Group_1_1__0
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__ImportExpression__Group_1_1__0__Impl
+	rule__ImportExpression__Group_1_1__1
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__ImportExpression__Group_1_1__0__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getImportExpressionAccess().getURLTypeParserRuleCall_1_1_0()); }
+	ruleURLType
+{ after(grammarAccess.getImportExpressionAccess().getURLTypeParserRuleCall_1_1_0()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+rule__ImportExpression__Group_1_1__1
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__ImportExpression__Group_1_1__1__Impl
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__ImportExpression__Group_1_1__1__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getImportExpressionAccess().getMediaListAssignment_1_1_1()); }
+(rule__ImportExpression__MediaListAssignment_1_1_1)?
+{ after(grammarAccess.getImportExpressionAccess().getMediaListAssignment_1_1_1()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+
+
+
+
+rule__Page__Group__0
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__Page__Group__0__Impl
+	rule__Page__Group__1
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Page__Group__0__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getPageAccess().getPageAction_0()); }
+(
+
+)
+{ after(grammarAccess.getPageAccess().getPageAction_0()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+rule__Page__Group__1
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__Page__Group__1__Impl
+	rule__Page__Group__2
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Page__Group__1__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getPageAccess().getAlternatives_1()); }
+(rule__Page__Alternatives_1)
+{ after(grammarAccess.getPageAccess().getAlternatives_1()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+rule__Page__Group__2
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__Page__Group__2__Impl
+	rule__Page__Group__3
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Page__Group__2__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getPageAccess().getPseudoPageAssignment_2()); }
+(rule__Page__PseudoPageAssignment_2)?
+{ after(grammarAccess.getPageAccess().getPseudoPageAssignment_2()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+rule__Page__Group__3
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__Page__Group__3__Impl
+	rule__Page__Group__4
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Page__Group__3__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getPageAccess().getLeftCurlyBracketKeyword_3()); }
+
+	'{' 
+
+{ after(grammarAccess.getPageAccess().getLeftCurlyBracketKeyword_3()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+rule__Page__Group__4
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__Page__Group__4__Impl
+	rule__Page__Group__5
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Page__Group__4__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getPageAccess().getDeclarationsAssignment_4()); }
+(rule__Page__DeclarationsAssignment_4)?
+{ after(grammarAccess.getPageAccess().getDeclarationsAssignment_4()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+rule__Page__Group__5
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__Page__Group__5__Impl
+	rule__Page__Group__6
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Page__Group__5__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getPageAccess().getGroup_5()); }
+(rule__Page__Group_5__0)*
+{ after(grammarAccess.getPageAccess().getGroup_5()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+rule__Page__Group__6
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__Page__Group__6__Impl
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Page__Group__6__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getPageAccess().getRightCurlyBracketKeyword_6()); }
+
+	'}' 
+
+{ after(grammarAccess.getPageAccess().getRightCurlyBracketKeyword_6()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+rule__Page__Group_5__0
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__Page__Group_5__0__Impl
+	rule__Page__Group_5__1
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Page__Group_5__0__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getPageAccess().getSemicolonKeyword_5_0()); }
+
+	';' 
+
+{ after(grammarAccess.getPageAccess().getSemicolonKeyword_5_0()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+rule__Page__Group_5__1
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__Page__Group_5__1__Impl
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Page__Group_5__1__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getPageAccess().getDeclarationsAssignment_5_1()); }
+(rule__Page__DeclarationsAssignment_5_1)?
+{ after(grammarAccess.getPageAccess().getDeclarationsAssignment_5_1()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+
+
+
+
+rule__Pseudo_page__Group__0
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__Pseudo_page__Group__0__Impl
+	rule__Pseudo_page__Group__1
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Pseudo_page__Group__0__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getPseudo_pageAccess().getCOLONTerminalRuleCall_0()); }
+	RULE_COLON
+{ after(grammarAccess.getPseudo_pageAccess().getCOLONTerminalRuleCall_0()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+rule__Pseudo_page__Group__1
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__Pseudo_page__Group__1__Impl
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Pseudo_page__Group__1__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getPseudo_pageAccess().getIdentifierParserRuleCall_1()); }
+	ruleIdentifier
+{ after(grammarAccess.getPseudo_pageAccess().getIdentifierParserRuleCall_1()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+
+
+
+
+rule__Media__Group__0
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__Media__Group__0__Impl
+	rule__Media__Group__1
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Media__Group__0__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getMediaAccess().getAlternatives_0()); }
+(rule__Media__Alternatives_0)
+{ after(grammarAccess.getMediaAccess().getAlternatives_0()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+rule__Media__Group__1
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__Media__Group__1__Impl
+	rule__Media__Group__2
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Media__Group__1__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getMediaAccess().getMedialistAssignment_1()); }
+(rule__Media__MedialistAssignment_1)
+{ after(grammarAccess.getMediaAccess().getMedialistAssignment_1()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+rule__Media__Group__2
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__Media__Group__2__Impl
+	rule__Media__Group__3
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Media__Group__2__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getMediaAccess().getLeftCurlyBracketKeyword_2()); }
+
+	'{' 
+
+{ after(grammarAccess.getMediaAccess().getLeftCurlyBracketKeyword_2()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+rule__Media__Group__3
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__Media__Group__3__Impl
+	rule__Media__Group__4
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Media__Group__3__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getMediaAccess().getRulesetsAssignment_3()); }
+(rule__Media__RulesetsAssignment_3)*
+{ after(grammarAccess.getMediaAccess().getRulesetsAssignment_3()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+rule__Media__Group__4
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__Media__Group__4__Impl
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Media__Group__4__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getMediaAccess().getRightCurlyBracketKeyword_4()); }
+
+	'}' 
+
+{ after(grammarAccess.getMediaAccess().getRightCurlyBracketKeyword_4()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+
+
+
+
+
+
+
+
+
+
+rule__Media_list__Group__0
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__Media_list__Group__0__Impl
+	rule__Media_list__Group__1
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Media_list__Group__0__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getMedia_listAccess().getMediumParserRuleCall_0()); }
+	rulemedium
+{ after(grammarAccess.getMedia_listAccess().getMediumParserRuleCall_0()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+rule__Media_list__Group__1
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__Media_list__Group__1__Impl
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Media_list__Group__1__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getMedia_listAccess().getGroup_1()); }
+(rule__Media_list__Group_1__0)*
+{ after(grammarAccess.getMedia_listAccess().getGroup_1()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+
+
+
+
+rule__Media_list__Group_1__0
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__Media_list__Group_1__0__Impl
+	rule__Media_list__Group_1__1
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Media_list__Group_1__0__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getMedia_listAccess().getCOMMATerminalRuleCall_1_0()); }
+	RULE_COMMA
+{ after(grammarAccess.getMedia_listAccess().getCOMMATerminalRuleCall_1_0()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+rule__Media_list__Group_1__1
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__Media_list__Group_1__1__Impl
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Media_list__Group_1__1__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getMedia_listAccess().getMediumParserRuleCall_1_1()); }
+	rulemedium
+{ after(grammarAccess.getMedia_listAccess().getMediumParserRuleCall_1_1()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+
+
+
+
+rule__Font_face__Group__0
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__Font_face__Group__0__Impl
+	rule__Font_face__Group__1
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Font_face__Group__0__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getFont_faceAccess().getFont_faceAction_0()); }
+(
+
+)
+{ after(grammarAccess.getFont_faceAccess().getFont_faceAction_0()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+rule__Font_face__Group__1
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__Font_face__Group__1__Impl
+	rule__Font_face__Group__2
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Font_face__Group__1__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getFont_faceAccess().getAlternatives_1()); }
+(rule__Font_face__Alternatives_1)
+{ after(grammarAccess.getFont_faceAccess().getAlternatives_1()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+rule__Font_face__Group__2
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__Font_face__Group__2__Impl
+	rule__Font_face__Group__3
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Font_face__Group__2__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getFont_faceAccess().getLeftCurlyBracketKeyword_2()); }
+
+	'{' 
+
+{ after(grammarAccess.getFont_faceAccess().getLeftCurlyBracketKeyword_2()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+rule__Font_face__Group__3
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__Font_face__Group__3__Impl
+	rule__Font_face__Group__4
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Font_face__Group__3__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getFont_faceAccess().getDeclarationsAssignment_3()); }
+(rule__Font_face__DeclarationsAssignment_3)?
+{ after(grammarAccess.getFont_faceAccess().getDeclarationsAssignment_3()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+rule__Font_face__Group__4
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__Font_face__Group__4__Impl
+	rule__Font_face__Group__5
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Font_face__Group__4__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getFont_faceAccess().getGroup_4()); }
+(rule__Font_face__Group_4__0)*
+{ after(grammarAccess.getFont_faceAccess().getGroup_4()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+rule__Font_face__Group__5
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__Font_face__Group__5__Impl
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Font_face__Group__5__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getFont_faceAccess().getRightCurlyBracketKeyword_5()); }
+
+	'}' 
+
+{ after(grammarAccess.getFont_faceAccess().getRightCurlyBracketKeyword_5()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+rule__Font_face__Group_4__0
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__Font_face__Group_4__0__Impl
+	rule__Font_face__Group_4__1
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Font_face__Group_4__0__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getFont_faceAccess().getSemicolonKeyword_4_0()); }
+
+	';' 
+
+{ after(grammarAccess.getFont_faceAccess().getSemicolonKeyword_4_0()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+rule__Font_face__Group_4__1
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__Font_face__Group_4__1__Impl
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Font_face__Group_4__1__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getFont_faceAccess().getDeclarationsAssignment_4_1()); }
+(rule__Font_face__DeclarationsAssignment_4_1)?
+{ after(grammarAccess.getFont_faceAccess().getDeclarationsAssignment_4_1()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+
+
+
+
+rule__Keyframes__Group__0
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__Keyframes__Group__0__Impl
+	rule__Keyframes__Group__1
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Keyframes__Group__0__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getKeyframesAccess().getFont_faceAction_0()); }
+(
+
+)
+{ after(grammarAccess.getKeyframesAccess().getFont_faceAction_0()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+rule__Keyframes__Group__1
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__Keyframes__Group__1__Impl
+	rule__Keyframes__Group__2
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Keyframes__Group__1__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getKeyframesAccess().getAlternatives_1()); }
+(rule__Keyframes__Alternatives_1)
+{ after(grammarAccess.getKeyframesAccess().getAlternatives_1()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+rule__Keyframes__Group__2
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__Keyframes__Group__2__Impl
+	rule__Keyframes__Group__3
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Keyframes__Group__2__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getKeyframesAccess().getNameAssignment_2()); }
+(rule__Keyframes__NameAssignment_2)
+{ after(grammarAccess.getKeyframesAccess().getNameAssignment_2()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+rule__Keyframes__Group__3
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__Keyframes__Group__3__Impl
+	rule__Keyframes__Group__4
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Keyframes__Group__3__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getKeyframesAccess().getLeftCurlyBracketKeyword_3()); }
+
+	'{' 
+
+{ after(grammarAccess.getKeyframesAccess().getLeftCurlyBracketKeyword_3()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+rule__Keyframes__Group__4
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__Keyframes__Group__4__Impl
+	rule__Keyframes__Group__5
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Keyframes__Group__4__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getKeyframesAccess().getKeyframeselectorsAssignment_4()); }
+(rule__Keyframes__KeyframeselectorsAssignment_4)?
+{ after(grammarAccess.getKeyframesAccess().getKeyframeselectorsAssignment_4()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+rule__Keyframes__Group__5
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__Keyframes__Group__5__Impl
+	rule__Keyframes__Group__6
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Keyframes__Group__5__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getKeyframesAccess().getGroup_5()); }
+(rule__Keyframes__Group_5__0)*
+{ after(grammarAccess.getKeyframesAccess().getGroup_5()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+rule__Keyframes__Group__6
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__Keyframes__Group__6__Impl
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Keyframes__Group__6__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getKeyframesAccess().getRightCurlyBracketKeyword_6()); }
+
+	'}' 
+
+{ after(grammarAccess.getKeyframesAccess().getRightCurlyBracketKeyword_6()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+rule__Keyframes__Group_5__0
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__Keyframes__Group_5__0__Impl
+	rule__Keyframes__Group_5__1
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Keyframes__Group_5__0__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getKeyframesAccess().getSemicolonKeyword_5_0()); }
+
+	';' 
+
+{ after(grammarAccess.getKeyframesAccess().getSemicolonKeyword_5_0()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+rule__Keyframes__Group_5__1
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__Keyframes__Group_5__1__Impl
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Keyframes__Group_5__1__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getKeyframesAccess().getKeyframeselectorsAssignment_5_1()); }
+(rule__Keyframes__KeyframeselectorsAssignment_5_1)?
+{ after(grammarAccess.getKeyframesAccess().getKeyframeselectorsAssignment_5_1()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+
+
+
+
+rule__Keyframe_selector__Group__0
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__Keyframe_selector__Group__0__Impl
+	rule__Keyframe_selector__Group__1
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Keyframe_selector__Group__0__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getKeyframe_selectorAccess().getAlternatives_0()); }
+(rule__Keyframe_selector__Alternatives_0)
+{ after(grammarAccess.getKeyframe_selectorAccess().getAlternatives_0()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+rule__Keyframe_selector__Group__1
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__Keyframe_selector__Group__1__Impl
+	rule__Keyframe_selector__Group__2
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Keyframe_selector__Group__1__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getKeyframe_selectorAccess().getLeftCurlyBracketKeyword_1()); }
+
+	'{' 
+
+{ after(grammarAccess.getKeyframe_selectorAccess().getLeftCurlyBracketKeyword_1()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+rule__Keyframe_selector__Group__2
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__Keyframe_selector__Group__2__Impl
+	rule__Keyframe_selector__Group__3
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Keyframe_selector__Group__2__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getKeyframe_selectorAccess().getDeclarationsAssignment_2()); }
+(rule__Keyframe_selector__DeclarationsAssignment_2)?
+{ after(grammarAccess.getKeyframe_selectorAccess().getDeclarationsAssignment_2()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+rule__Keyframe_selector__Group__3
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__Keyframe_selector__Group__3__Impl
+	rule__Keyframe_selector__Group__4
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Keyframe_selector__Group__3__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getKeyframe_selectorAccess().getGroup_3()); }
+(rule__Keyframe_selector__Group_3__0)*
+{ after(grammarAccess.getKeyframe_selectorAccess().getGroup_3()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+rule__Keyframe_selector__Group__4
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__Keyframe_selector__Group__4__Impl
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Keyframe_selector__Group__4__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getKeyframe_selectorAccess().getRightCurlyBracketKeyword_4()); }
+
+	'}' 
+
+{ after(grammarAccess.getKeyframe_selectorAccess().getRightCurlyBracketKeyword_4()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+
+
+
+
+
+
+
+
+
+
+rule__Keyframe_selector__Group_0_1__0
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__Keyframe_selector__Group_0_1__0__Impl
+	rule__Keyframe_selector__Group_0_1__1
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Keyframe_selector__Group_0_1__0__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getKeyframe_selectorAccess().getPercentageAssignment_0_1_0()); }
+(rule__Keyframe_selector__PercentageAssignment_0_1_0)
+{ after(grammarAccess.getKeyframe_selectorAccess().getPercentageAssignment_0_1_0()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+rule__Keyframe_selector__Group_0_1__1
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__Keyframe_selector__Group_0_1__1__Impl
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Keyframe_selector__Group_0_1__1__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getKeyframe_selectorAccess().getPERCENTTerminalRuleCall_0_1_1()); }
+	RULE_PERCENT
+{ after(grammarAccess.getKeyframe_selectorAccess().getPERCENTTerminalRuleCall_0_1_1()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+
+
+
+
+rule__Keyframe_selector__Group_3__0
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__Keyframe_selector__Group_3__0__Impl
+	rule__Keyframe_selector__Group_3__1
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Keyframe_selector__Group_3__0__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getKeyframe_selectorAccess().getSemicolonKeyword_3_0()); }
+
+	';' 
+
+{ after(grammarAccess.getKeyframe_selectorAccess().getSemicolonKeyword_3_0()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+rule__Keyframe_selector__Group_3__1
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__Keyframe_selector__Group_3__1__Impl
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Keyframe_selector__Group_3__1__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getKeyframe_selectorAccess().getDeclarationsAssignment_3_1()); }
+(rule__Keyframe_selector__DeclarationsAssignment_3_1)?
+{ after(grammarAccess.getKeyframe_selectorAccess().getDeclarationsAssignment_3_1()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+
+
+
+
+rule__Ruleset__Group__0
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__Ruleset__Group__0__Impl
+	rule__Ruleset__Group__1
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Ruleset__Group__0__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getRulesetAccess().getSelectorsAssignment_0()); }
+(rule__Ruleset__SelectorsAssignment_0)
+{ after(grammarAccess.getRulesetAccess().getSelectorsAssignment_0()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+rule__Ruleset__Group__1
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__Ruleset__Group__1__Impl
+	rule__Ruleset__Group__2
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Ruleset__Group__1__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getRulesetAccess().getGroup_1()); }
+(rule__Ruleset__Group_1__0)*
+{ after(grammarAccess.getRulesetAccess().getGroup_1()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+rule__Ruleset__Group__2
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__Ruleset__Group__2__Impl
+	rule__Ruleset__Group__3
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Ruleset__Group__2__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getRulesetAccess().getWSTerminalRuleCall_2()); }
+(	RULE_WS)*
+{ after(grammarAccess.getRulesetAccess().getWSTerminalRuleCall_2()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+rule__Ruleset__Group__3
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__Ruleset__Group__3__Impl
+	rule__Ruleset__Group__4
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Ruleset__Group__3__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getRulesetAccess().getLeftCurlyBracketKeyword_3()); }
+
+	'{' 
+
+{ after(grammarAccess.getRulesetAccess().getLeftCurlyBracketKeyword_3()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+rule__Ruleset__Group__4
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__Ruleset__Group__4__Impl
+	rule__Ruleset__Group__5
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Ruleset__Group__4__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getRulesetAccess().getGroup_4()); }
+(rule__Ruleset__Group_4__0)?
+{ after(grammarAccess.getRulesetAccess().getGroup_4()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+rule__Ruleset__Group__5
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__Ruleset__Group__5__Impl
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Ruleset__Group__5__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getRulesetAccess().getRightCurlyBracketKeyword_5()); }
+
+	'}' 
+
+{ after(grammarAccess.getRulesetAccess().getRightCurlyBracketKeyword_5()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+rule__Ruleset__Group_1__0
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__Ruleset__Group_1__0__Impl
+	rule__Ruleset__Group_1__1
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Ruleset__Group_1__0__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getRulesetAccess().getWSTerminalRuleCall_1_0()); }
+(	RULE_WS)*
+{ after(grammarAccess.getRulesetAccess().getWSTerminalRuleCall_1_0()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+rule__Ruleset__Group_1__1
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__Ruleset__Group_1__1__Impl
+	rule__Ruleset__Group_1__2
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Ruleset__Group_1__1__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getRulesetAccess().getCOMMATerminalRuleCall_1_1()); }
+	RULE_COMMA
+{ after(grammarAccess.getRulesetAccess().getCOMMATerminalRuleCall_1_1()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+rule__Ruleset__Group_1__2
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__Ruleset__Group_1__2__Impl
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Ruleset__Group_1__2__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getRulesetAccess().getSelectorsAssignment_1_2()); }
+(rule__Ruleset__SelectorsAssignment_1_2)
+{ after(grammarAccess.getRulesetAccess().getSelectorsAssignment_1_2()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+
+
+
+
+
+
+rule__Ruleset__Group_4__0
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__Ruleset__Group_4__0__Impl
+	rule__Ruleset__Group_4__1
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Ruleset__Group_4__0__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getRulesetAccess().getDeclarationsAssignment_4_0()); }
+(rule__Ruleset__DeclarationsAssignment_4_0)
+{ after(grammarAccess.getRulesetAccess().getDeclarationsAssignment_4_0()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+rule__Ruleset__Group_4__1
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__Ruleset__Group_4__1__Impl
+	rule__Ruleset__Group_4__2
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Ruleset__Group_4__1__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getRulesetAccess().getGroup_4_1()); }
+(rule__Ruleset__Group_4_1__0)*
+{ after(grammarAccess.getRulesetAccess().getGroup_4_1()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+rule__Ruleset__Group_4__2
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__Ruleset__Group_4__2__Impl
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Ruleset__Group_4__2__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getRulesetAccess().getSemicolonKeyword_4_2()); }
+(
+	';' 
+)?
+{ after(grammarAccess.getRulesetAccess().getSemicolonKeyword_4_2()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+
+
+
+
+
+
+rule__Ruleset__Group_4_1__0
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__Ruleset__Group_4_1__0__Impl
+	rule__Ruleset__Group_4_1__1
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Ruleset__Group_4_1__0__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getRulesetAccess().getSemicolonKeyword_4_1_0()); }
+
+	';' 
+
+{ after(grammarAccess.getRulesetAccess().getSemicolonKeyword_4_1_0()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+rule__Ruleset__Group_4_1__1
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__Ruleset__Group_4_1__1__Impl
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Ruleset__Group_4_1__1__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getRulesetAccess().getDeclarationsAssignment_4_1_1()); }
+(rule__Ruleset__DeclarationsAssignment_4_1_1)
+{ after(grammarAccess.getRulesetAccess().getDeclarationsAssignment_4_1_1()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+
+
+
+
+rule__Selector__Group__0
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__Selector__Group__0__Impl
+	rule__Selector__Group__1
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Selector__Group__0__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getSelectorAccess().getSimpleselectorsAssignment_0()); }
+(rule__Selector__SimpleselectorsAssignment_0)
+{ after(grammarAccess.getSelectorAccess().getSimpleselectorsAssignment_0()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+rule__Selector__Group__1
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__Selector__Group__1__Impl
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Selector__Group__1__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getSelectorAccess().getAlternatives_1()); }
+(rule__Selector__Alternatives_1)?
+{ after(grammarAccess.getSelectorAccess().getAlternatives_1()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+
+
+
+
+rule__Selector__Group_1_0__0
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__Selector__Group_1_0__0__Impl
+	rule__Selector__Group_1_0__1
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Selector__Group_1_0__0__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getSelectorAccess().getCombinatorAssignment_1_0_0()); }
+(rule__Selector__CombinatorAssignment_1_0_0)
+{ after(grammarAccess.getSelectorAccess().getCombinatorAssignment_1_0_0()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+rule__Selector__Group_1_0__1
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__Selector__Group_1_0__1__Impl
+	rule__Selector__Group_1_0__2
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Selector__Group_1_0__1__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getSelectorAccess().getWSTerminalRuleCall_1_0_1()); }
+(	RULE_WS)*
+{ after(grammarAccess.getSelectorAccess().getWSTerminalRuleCall_1_0_1()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+rule__Selector__Group_1_0__2
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__Selector__Group_1_0__2__Impl
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Selector__Group_1_0__2__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getSelectorAccess().getSelectorAssignment_1_0_2()); }
+(rule__Selector__SelectorAssignment_1_0_2)
+{ after(grammarAccess.getSelectorAccess().getSelectorAssignment_1_0_2()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+
+
+
+
+
+
+rule__Selector__Group_1_1__0
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__Selector__Group_1_1__0__Impl
+	rule__Selector__Group_1_1__1
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Selector__Group_1_1__0__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+(
+{ before(grammarAccess.getSelectorAccess().getWSTerminalRuleCall_1_1_0()); }
+(	RULE_WS)
+{ after(grammarAccess.getSelectorAccess().getWSTerminalRuleCall_1_1_0()); }
+)
+(
+{ before(grammarAccess.getSelectorAccess().getWSTerminalRuleCall_1_1_0()); }
+(	RULE_WS)*
+{ after(grammarAccess.getSelectorAccess().getWSTerminalRuleCall_1_1_0()); }
+)
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+rule__Selector__Group_1_1__1
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__Selector__Group_1_1__1__Impl
+	rule__Selector__Group_1_1__2
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Selector__Group_1_1__1__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getSelectorAccess().getGroup_1_1_1()); }
+(rule__Selector__Group_1_1_1__0)?
+{ after(grammarAccess.getSelectorAccess().getGroup_1_1_1()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+rule__Selector__Group_1_1__2
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__Selector__Group_1_1__2__Impl
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Selector__Group_1_1__2__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getSelectorAccess().getSelectorAssignment_1_1_2()); }
+(rule__Selector__SelectorAssignment_1_1_2)
+{ after(grammarAccess.getSelectorAccess().getSelectorAssignment_1_1_2()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+
+
+
+
+
+
+rule__Selector__Group_1_1_1__0
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__Selector__Group_1_1_1__0__Impl
+	rule__Selector__Group_1_1_1__1
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Selector__Group_1_1_1__0__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getSelectorAccess().getCombinatorAssignment_1_1_1_0()); }
+(rule__Selector__CombinatorAssignment_1_1_1_0)
+{ after(grammarAccess.getSelectorAccess().getCombinatorAssignment_1_1_1_0()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+rule__Selector__Group_1_1_1__1
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__Selector__Group_1_1_1__1__Impl
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Selector__Group_1_1_1__1__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getSelectorAccess().getWSTerminalRuleCall_1_1_1_1()); }
+(	RULE_WS)*
+{ after(grammarAccess.getSelectorAccess().getWSTerminalRuleCall_1_1_1_1()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+
+
+
+
+rule__SimpleSelectorForNegation__Group_0__0
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__SimpleSelectorForNegation__Group_0__0__Impl
+	rule__SimpleSelectorForNegation__Group_0__1
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__SimpleSelectorForNegation__Group_0__0__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getSimpleSelectorForNegationAccess().getAlternatives_0_0()); }
+(rule__SimpleSelectorForNegation__Alternatives_0_0)
+{ after(grammarAccess.getSimpleSelectorForNegationAccess().getAlternatives_0_0()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+rule__SimpleSelectorForNegation__Group_0__1
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__SimpleSelectorForNegation__Group_0__1__Impl
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__SimpleSelectorForNegation__Group_0__1__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getSimpleSelectorForNegationAccess().getSubSelectorsAssignment_0_1()); }
+(rule__SimpleSelectorForNegation__SubSelectorsAssignment_0_1)*
+{ after(grammarAccess.getSimpleSelectorForNegationAccess().getSubSelectorsAssignment_0_1()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+
+
+
+
+rule__Simple_selector__Group_0__0
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__Simple_selector__Group_0__0__Impl
+	rule__Simple_selector__Group_0__1
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Simple_selector__Group_0__0__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getSimple_selectorAccess().getAlternatives_0_0()); }
+(rule__Simple_selector__Alternatives_0_0)
+{ after(grammarAccess.getSimple_selectorAccess().getAlternatives_0_0()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+rule__Simple_selector__Group_0__1
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__Simple_selector__Group_0__1__Impl
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Simple_selector__Group_0__1__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getSimple_selectorAccess().getSubSelectorsAssignment_0_1()); }
+(rule__Simple_selector__SubSelectorsAssignment_0_1)*
+{ after(grammarAccess.getSimple_selectorAccess().getSubSelectorsAssignment_0_1()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+
+
+
+
+rule__AttributeSelector__Group__0
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__AttributeSelector__Group__0__Impl
+	rule__AttributeSelector__Group__1
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__AttributeSelector__Group__0__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getAttributeSelectorAccess().getAttributeSelectorAction_0()); }
+(
+
+)
+{ after(grammarAccess.getAttributeSelectorAccess().getAttributeSelectorAction_0()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+rule__AttributeSelector__Group__1
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__AttributeSelector__Group__1__Impl
+	rule__AttributeSelector__Group__2
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__AttributeSelector__Group__1__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getAttributeSelectorAccess().getLeftSquareBracketKeyword_1()); }
+
+	'[' 
+
+{ after(grammarAccess.getAttributeSelectorAccess().getLeftSquareBracketKeyword_1()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+rule__AttributeSelector__Group__2
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__AttributeSelector__Group__2__Impl
+	rule__AttributeSelector__Group__3
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__AttributeSelector__Group__2__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getAttributeSelectorAccess().getNameAssignment_2()); }
+(rule__AttributeSelector__NameAssignment_2)
+{ after(grammarAccess.getAttributeSelectorAccess().getNameAssignment_2()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+rule__AttributeSelector__Group__3
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__AttributeSelector__Group__3__Impl
+	rule__AttributeSelector__Group__4
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__AttributeSelector__Group__3__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getAttributeSelectorAccess().getGroup_3()); }
+(rule__AttributeSelector__Group_3__0)?
+{ after(grammarAccess.getAttributeSelectorAccess().getGroup_3()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+rule__AttributeSelector__Group__4
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__AttributeSelector__Group__4__Impl
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__AttributeSelector__Group__4__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getAttributeSelectorAccess().getRightSquareBracketKeyword_4()); }
+
+	']' 
+
+{ after(grammarAccess.getAttributeSelectorAccess().getRightSquareBracketKeyword_4()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+
+
+
+
+
+
+
+
+
+
+rule__AttributeSelector__Group_3__0
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__AttributeSelector__Group_3__0__Impl
+	rule__AttributeSelector__Group_3__1
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__AttributeSelector__Group_3__0__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getAttributeSelectorAccess().getOpAssignment_3_0()); }
+(rule__AttributeSelector__OpAssignment_3_0)
+{ after(grammarAccess.getAttributeSelectorAccess().getOpAssignment_3_0()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+rule__AttributeSelector__Group_3__1
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__AttributeSelector__Group_3__1__Impl
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__AttributeSelector__Group_3__1__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getAttributeSelectorAccess().getValueAssignment_3_1()); }
+(rule__AttributeSelector__ValueAssignment_3_1)
+{ after(grammarAccess.getAttributeSelectorAccess().getValueAssignment_3_1()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+
+
+
+
+rule__ClassSelector__Group__0
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__ClassSelector__Group__0__Impl
+	rule__ClassSelector__Group__1
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__ClassSelector__Group__0__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getClassSelectorAccess().getClassSelectorAction_0()); }
+(
+
+)
+{ after(grammarAccess.getClassSelectorAccess().getClassSelectorAction_0()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+rule__ClassSelector__Group__1
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__ClassSelector__Group__1__Impl
+	rule__ClassSelector__Group__2
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__ClassSelector__Group__1__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getClassSelectorAccess().getFullStopKeyword_1()); }
+
+	'.' 
+
+{ after(grammarAccess.getClassSelectorAccess().getFullStopKeyword_1()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+rule__ClassSelector__Group__2
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__ClassSelector__Group__2__Impl
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__ClassSelector__Group__2__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getClassSelectorAccess().getNameAssignment_2()); }
+(rule__ClassSelector__NameAssignment_2)
+{ after(grammarAccess.getClassSelectorAccess().getNameAssignment_2()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+
+
+
+
+
+
+rule__ElementSelector__Group__0
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__ElementSelector__Group__0__Impl
+	rule__ElementSelector__Group__1
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__ElementSelector__Group__0__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getElementSelectorAccess().getElementSelectorAction_0()); }
+(
+
+)
+{ after(grammarAccess.getElementSelectorAccess().getElementSelectorAction_0()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+rule__ElementSelector__Group__1
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__ElementSelector__Group__1__Impl
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__ElementSelector__Group__1__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getElementSelectorAccess().getNameAssignment_1()); }
+(rule__ElementSelector__NameAssignment_1)
+{ after(grammarAccess.getElementSelectorAccess().getNameAssignment_1()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+
+
+
+
+rule__UniversalSelector__Group__0
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__UniversalSelector__Group__0__Impl
+	rule__UniversalSelector__Group__1
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__UniversalSelector__Group__0__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getUniversalSelectorAccess().getUniversalSelectorAction_0()); }
+(
+
+)
+{ after(grammarAccess.getUniversalSelectorAccess().getUniversalSelectorAction_0()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+rule__UniversalSelector__Group__1
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__UniversalSelector__Group__1__Impl
+	rule__UniversalSelector__Group__2
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__UniversalSelector__Group__1__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getUniversalSelectorAccess().getNamespaceAssignment_1()); }
+(rule__UniversalSelector__NamespaceAssignment_1)?
+{ after(grammarAccess.getUniversalSelectorAccess().getNamespaceAssignment_1()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+rule__UniversalSelector__Group__2
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__UniversalSelector__Group__2__Impl
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__UniversalSelector__Group__2__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getUniversalSelectorAccess().getAsteriskKeyword_2()); }
+
+	'*' 
+
+{ after(grammarAccess.getUniversalSelectorAccess().getAsteriskKeyword_2()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+
+
+
+
+
+
+rule__IdSelector__Group__0
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__IdSelector__Group__0__Impl
+	rule__IdSelector__Group__1
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__IdSelector__Group__0__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getIdSelectorAccess().getIdSelectorAction_0()); }
+(
+
+)
+{ after(grammarAccess.getIdSelectorAccess().getIdSelectorAction_0()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+rule__IdSelector__Group__1
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__IdSelector__Group__1__Impl
+	rule__IdSelector__Group__2
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__IdSelector__Group__1__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getIdSelectorAccess().getHASHMARKTerminalRuleCall_1()); }
+	RULE_HASHMARK
+{ after(grammarAccess.getIdSelectorAccess().getHASHMARKTerminalRuleCall_1()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+rule__IdSelector__Group__2
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__IdSelector__Group__2__Impl
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__IdSelector__Group__2__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getIdSelectorAccess().getNameAssignment_2()); }
+(rule__IdSelector__NameAssignment_2)
+{ after(grammarAccess.getIdSelectorAccess().getNameAssignment_2()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+
+
+
+
+
+
+rule__Css_namespace_prefix__Group__0
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__Css_namespace_prefix__Group__0__Impl
+	rule__Css_namespace_prefix__Group__1
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Css_namespace_prefix__Group__0__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getCss_namespace_prefixAccess().getAlternatives_0()); }
+(rule__Css_namespace_prefix__Alternatives_0)?
+{ after(grammarAccess.getCss_namespace_prefixAccess().getAlternatives_0()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+rule__Css_namespace_prefix__Group__1
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__Css_namespace_prefix__Group__1__Impl
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Css_namespace_prefix__Group__1__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getCss_namespace_prefixAccess().getVerticalLineKeyword_1()); }
+
+	'|' 
+
+{ after(grammarAccess.getCss_namespace_prefixAccess().getVerticalLineKeyword_1()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+
+
+
+
+rule__Css_declaration__Group__0
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__Css_declaration__Group__0__Impl
+	rule__Css_declaration__Group__1
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Css_declaration__Group__0__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getCss_declarationAccess().getWSTerminalRuleCall_0()); }
+(	RULE_WS)*
+{ after(grammarAccess.getCss_declarationAccess().getWSTerminalRuleCall_0()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+rule__Css_declaration__Group__1
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__Css_declaration__Group__1__Impl
+	rule__Css_declaration__Group__2
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Css_declaration__Group__1__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getCss_declarationAccess().getPropertyAssignment_1()); }
+(rule__Css_declaration__PropertyAssignment_1)
+{ after(grammarAccess.getCss_declarationAccess().getPropertyAssignment_1()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+rule__Css_declaration__Group__2
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__Css_declaration__Group__2__Impl
+	rule__Css_declaration__Group__3
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Css_declaration__Group__2__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getCss_declarationAccess().getWSTerminalRuleCall_2()); }
+(	RULE_WS)*
+{ after(grammarAccess.getCss_declarationAccess().getWSTerminalRuleCall_2()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+rule__Css_declaration__Group__3
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__Css_declaration__Group__3__Impl
+	rule__Css_declaration__Group__4
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Css_declaration__Group__3__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getCss_declarationAccess().getCOLONTerminalRuleCall_3()); }
+	RULE_COLON
+{ after(grammarAccess.getCss_declarationAccess().getCOLONTerminalRuleCall_3()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+rule__Css_declaration__Group__4
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__Css_declaration__Group__4__Impl
+	rule__Css_declaration__Group__5
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Css_declaration__Group__4__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+(
+{ before(grammarAccess.getCss_declarationAccess().getValueTokensAssignment_4()); }
+(rule__Css_declaration__ValueTokensAssignment_4)
+{ after(grammarAccess.getCss_declarationAccess().getValueTokensAssignment_4()); }
+)
+(
+{ before(grammarAccess.getCss_declarationAccess().getValueTokensAssignment_4()); }
+(rule__Css_declaration__ValueTokensAssignment_4)*
+{ after(grammarAccess.getCss_declarationAccess().getValueTokensAssignment_4()); }
+)
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+rule__Css_declaration__Group__5
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__Css_declaration__Group__5__Impl
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Css_declaration__Group__5__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getCss_declarationAccess().getImportantAssignment_5()); }
+(rule__Css_declaration__ImportantAssignment_5)?
+{ after(grammarAccess.getCss_declarationAccess().getImportantAssignment_5()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+rule__Css_property__Group__0
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__Css_property__Group__0__Impl
+	rule__Css_property__Group__1
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Css_property__Group__0__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getCss_propertyAccess().getCss_propertyAction_0()); }
+(
+
+)
+{ after(grammarAccess.getCss_propertyAccess().getCss_propertyAction_0()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+rule__Css_property__Group__1
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__Css_property__Group__1__Impl
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Css_property__Group__1__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getCss_propertyAccess().getNameAssignment_1()); }
+(rule__Css_property__NameAssignment_1)
+{ after(grammarAccess.getCss_propertyAccess().getNameAssignment_1()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+
+
+
+
+rule__PseudoClass__Group__0
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__PseudoClass__Group__0__Impl
+	rule__PseudoClass__Group__1
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__PseudoClass__Group__0__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getPseudoClassAccess().getCOLONTerminalRuleCall_0()); }
+	RULE_COLON
+{ after(grammarAccess.getPseudoClassAccess().getCOLONTerminalRuleCall_0()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+rule__PseudoClass__Group__1
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__PseudoClass__Group__1__Impl
+	rule__PseudoClass__Group__2
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__PseudoClass__Group__1__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getPseudoClassAccess().getCOLONTerminalRuleCall_1()); }
+(	RULE_COLON)?
+{ after(grammarAccess.getPseudoClassAccess().getCOLONTerminalRuleCall_1()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+rule__PseudoClass__Group__2
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__PseudoClass__Group__2__Impl
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__PseudoClass__Group__2__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getPseudoClassAccess().getPseudoClassNameParserRuleCall_2()); }
+	rulePseudoClassName
+{ after(grammarAccess.getPseudoClassAccess().getPseudoClassNameParserRuleCall_2()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+
+
+
+
+
+
+rule__PseudoClassFunction__Group_0__0
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__PseudoClassFunction__Group_0__0__Impl
+	rule__PseudoClassFunction__Group_0__1
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__PseudoClassFunction__Group_0__0__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getPseudoClassFunctionAccess().getNotAssignment_0_0()); }
+(rule__PseudoClassFunction__NotAssignment_0_0)
+{ after(grammarAccess.getPseudoClassFunctionAccess().getNotAssignment_0_0()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+rule__PseudoClassFunction__Group_0__1
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__PseudoClassFunction__Group_0__1__Impl
+	rule__PseudoClassFunction__Group_0__2
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__PseudoClassFunction__Group_0__1__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getPseudoClassFunctionAccess().getParamSelectorAssignment_0_1()); }
+(rule__PseudoClassFunction__ParamSelectorAssignment_0_1)
+{ after(grammarAccess.getPseudoClassFunctionAccess().getParamSelectorAssignment_0_1()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+rule__PseudoClassFunction__Group_0__2
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__PseudoClassFunction__Group_0__2__Impl
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__PseudoClassFunction__Group_0__2__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getPseudoClassFunctionAccess().getRightParenthesisKeyword_0_2()); }
+
+	')' 
+
+{ after(grammarAccess.getPseudoClassFunctionAccess().getRightParenthesisKeyword_0_2()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+
+
+
+
+
+
+rule__PseudoClassFunction__Group_1__0
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__PseudoClassFunction__Group_1__0__Impl
+	rule__PseudoClassFunction__Group_1__1
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__PseudoClassFunction__Group_1__0__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getPseudoClassFunctionAccess().getCOLONTerminalRuleCall_1_0()); }
+	RULE_COLON
+{ after(grammarAccess.getPseudoClassFunctionAccess().getCOLONTerminalRuleCall_1_0()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+rule__PseudoClassFunction__Group_1__1
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__PseudoClassFunction__Group_1__1__Impl
+	rule__PseudoClassFunction__Group_1__2
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__PseudoClassFunction__Group_1__1__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getPseudoClassFunctionAccess().getNameAssignment_1_1()); }
+(rule__PseudoClassFunction__NameAssignment_1_1)
+{ after(grammarAccess.getPseudoClassFunctionAccess().getNameAssignment_1_1()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+rule__PseudoClassFunction__Group_1__2
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__PseudoClassFunction__Group_1__2__Impl
+	rule__PseudoClassFunction__Group_1__3
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__PseudoClassFunction__Group_1__2__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getPseudoClassFunctionAccess().getLeftParenthesisKeyword_1_2()); }
+
+	'(' 
+
+{ after(grammarAccess.getPseudoClassFunctionAccess().getLeftParenthesisKeyword_1_2()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+rule__PseudoClassFunction__Group_1__3
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__PseudoClassFunction__Group_1__3__Impl
+	rule__PseudoClassFunction__Group_1__4
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__PseudoClassFunction__Group_1__3__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getPseudoClassFunctionAccess().getParamsAssignment_1_3()); }
+(rule__PseudoClassFunction__ParamsAssignment_1_3)*
+{ after(grammarAccess.getPseudoClassFunctionAccess().getParamsAssignment_1_3()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+rule__PseudoClassFunction__Group_1__4
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__PseudoClassFunction__Group_1__4__Impl
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__PseudoClassFunction__Group_1__4__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getPseudoClassFunctionAccess().getRightParenthesisKeyword_1_4()); }
+
+	')' 
+
+{ after(grammarAccess.getPseudoClassFunctionAccess().getRightParenthesisKeyword_1_4()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+
+
+
+
+
+
+
+
+
+
+rule__NotFunctionCall__Group__0
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__NotFunctionCall__Group__0__Impl
+	rule__NotFunctionCall__Group__1
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__NotFunctionCall__Group__0__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getNotFunctionCallAccess().getCOLONTerminalRuleCall_0()); }
+	RULE_COLON
+{ after(grammarAccess.getNotFunctionCallAccess().getCOLONTerminalRuleCall_0()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+rule__NotFunctionCall__Group__1
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__NotFunctionCall__Group__1__Impl
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__NotFunctionCall__Group__1__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getNotFunctionCallAccess().getNotKeyword_1()); }
+
+	'not(' 
+
+{ after(grammarAccess.getNotFunctionCallAccess().getNotKeyword_1()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+
+
+
+
+rule__SymbolTok__Group__0
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__SymbolTok__Group__0__Impl
+	rule__SymbolTok__Group__1
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__SymbolTok__Group__0__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getSymbolTokAccess().getSymbolTokAction_0()); }
+(
+
+)
+{ after(grammarAccess.getSymbolTokAccess().getSymbolTokAction_0()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+rule__SymbolTok__Group__1
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__SymbolTok__Group__1__Impl
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__SymbolTok__Group__1__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getSymbolTokAccess().getSymbolAssignment_1()); }
+(rule__SymbolTok__SymbolAssignment_1)
+{ after(grammarAccess.getSymbolTokAccess().getSymbolAssignment_1()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+
+
+
+
+rule__WSTok__Group__0
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__WSTok__Group__0__Impl
+	rule__WSTok__Group__1
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__WSTok__Group__0__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getWSTokAccess().getWSTokAction_0()); }
+(
+
+)
+{ after(grammarAccess.getWSTokAccess().getWSTokAction_0()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+rule__WSTok__Group__1
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__WSTok__Group__1__Impl
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__WSTok__Group__1__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getWSTokAccess().getWSTerminalRuleCall_1()); }
+	RULE_WS
+{ after(grammarAccess.getWSTokAccess().getWSTerminalRuleCall_1()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+
+
+
+
+rule__StringTok__Group__0
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__StringTok__Group__0__Impl
+	rule__StringTok__Group__1
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__StringTok__Group__0__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getStringTokAccess().getStringTokAction_0()); }
+(
+
+)
+{ after(grammarAccess.getStringTokAccess().getStringTokAction_0()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+rule__StringTok__Group__1
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__StringTok__Group__1__Impl
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__StringTok__Group__1__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getStringTokAccess().getValueAssignment_1()); }
+(rule__StringTok__ValueAssignment_1)
+{ after(grammarAccess.getStringTokAccess().getValueAssignment_1()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+
+
+
+
+rule__NumberTok__Group__0
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__NumberTok__Group__0__Impl
+	rule__NumberTok__Group__1
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__NumberTok__Group__0__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getNumberTokAccess().getNumberTokAction_0()); }
+(
+
+)
+{ after(grammarAccess.getNumberTokAccess().getNumberTokAction_0()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+rule__NumberTok__Group__1
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__NumberTok__Group__1__Impl
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__NumberTok__Group__1__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getNumberTokAccess().getValAssignment_1()); }
+(rule__NumberTok__ValAssignment_1)
+{ after(grammarAccess.getNumberTokAccess().getValAssignment_1()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+
+
+
+
+rule__UrlTok__Group__0
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__UrlTok__Group__0__Impl
+	rule__UrlTok__Group__1
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__UrlTok__Group__0__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getUrlTokAccess().getUrlTokAction_0()); }
+(
+
+)
+{ after(grammarAccess.getUrlTokAccess().getUrlTokAction_0()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+rule__UrlTok__Group__1
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__UrlTok__Group__1__Impl
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__UrlTok__Group__1__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getUrlTokAccess().getUrlAssignment_1()); }
+(rule__UrlTok__UrlAssignment_1)
+{ after(grammarAccess.getUrlTokAccess().getUrlAssignment_1()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+
+
+
+
+rule__ColorTok__Group__0
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__ColorTok__Group__0__Impl
+	rule__ColorTok__Group__1
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__ColorTok__Group__0__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getColorTokAccess().getColorTokAction_0()); }
+(
+
+)
+{ after(grammarAccess.getColorTokAccess().getColorTokAction_0()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+rule__ColorTok__Group__1
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__ColorTok__Group__1__Impl
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__ColorTok__Group__1__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getColorTokAccess().getValueAssignment_1()); }
+(rule__ColorTok__ValueAssignment_1)
+{ after(grammarAccess.getColorTokAccess().getValueAssignment_1()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+
+
+
+
+rule__IdentifierOrFuncTok__Group__0
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__IdentifierOrFuncTok__Group__0__Impl
+	rule__IdentifierOrFuncTok__Group__1
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__IdentifierOrFuncTok__Group__0__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getIdentifierOrFuncTokAccess().getIdentifierTokAction_0()); }
+(
+
+)
+{ after(grammarAccess.getIdentifierOrFuncTokAccess().getIdentifierTokAction_0()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+rule__IdentifierOrFuncTok__Group__1
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__IdentifierOrFuncTok__Group__1__Impl
+	rule__IdentifierOrFuncTok__Group__2
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__IdentifierOrFuncTok__Group__1__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getIdentifierOrFuncTokAccess().getNameAssignment_1()); }
+(rule__IdentifierOrFuncTok__NameAssignment_1)
+{ after(grammarAccess.getIdentifierOrFuncTokAccess().getNameAssignment_1()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+rule__IdentifierOrFuncTok__Group__2
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__IdentifierOrFuncTok__Group__2__Impl
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__IdentifierOrFuncTok__Group__2__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getIdentifierOrFuncTokAccess().getGroup_2()); }
+(rule__IdentifierOrFuncTok__Group_2__0)?
+{ after(grammarAccess.getIdentifierOrFuncTokAccess().getGroup_2()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+
+
+
+
+
+
+rule__IdentifierOrFuncTok__Group_2__0
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__IdentifierOrFuncTok__Group_2__0__Impl
+	rule__IdentifierOrFuncTok__Group_2__1
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__IdentifierOrFuncTok__Group_2__0__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getIdentifierOrFuncTokAccess().getFuncTokNameAction_2_0()); }
+(
+
+)
+{ after(grammarAccess.getIdentifierOrFuncTokAccess().getFuncTokNameAction_2_0()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+rule__IdentifierOrFuncTok__Group_2__1
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__IdentifierOrFuncTok__Group_2__1__Impl
+	rule__IdentifierOrFuncTok__Group_2__2
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__IdentifierOrFuncTok__Group_2__1__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getIdentifierOrFuncTokAccess().getLeftParenthesisKeyword_2_1()); }
+
+	'(' 
+
+{ after(grammarAccess.getIdentifierOrFuncTokAccess().getLeftParenthesisKeyword_2_1()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+rule__IdentifierOrFuncTok__Group_2__2
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__IdentifierOrFuncTok__Group_2__2__Impl
+	rule__IdentifierOrFuncTok__Group_2__3
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__IdentifierOrFuncTok__Group_2__2__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+(
+{ before(grammarAccess.getIdentifierOrFuncTokAccess().getParamsAssignment_2_2()); }
+(rule__IdentifierOrFuncTok__ParamsAssignment_2_2)
+{ after(grammarAccess.getIdentifierOrFuncTokAccess().getParamsAssignment_2_2()); }
+)
+(
+{ before(grammarAccess.getIdentifierOrFuncTokAccess().getParamsAssignment_2_2()); }
+(rule__IdentifierOrFuncTok__ParamsAssignment_2_2)*
+{ after(grammarAccess.getIdentifierOrFuncTokAccess().getParamsAssignment_2_2()); }
+)
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+rule__IdentifierOrFuncTok__Group_2__3
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__IdentifierOrFuncTok__Group_2__3__Impl
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__IdentifierOrFuncTok__Group_2__3__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getIdentifierOrFuncTokAccess().getRightParenthesisKeyword_2_3()); }
+
+	')' 
+
+{ after(grammarAccess.getIdentifierOrFuncTokAccess().getRightParenthesisKeyword_2_3()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+
+
+
+
+
+
+
+
+rule__URLType__Group__0
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__URLType__Group__0__Impl
+	rule__URLType__Group__1
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__URLType__Group__0__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getURLTypeAccess().getUrlKeyword_0()); }
+
+	'url(' 
+
+{ after(grammarAccess.getURLTypeAccess().getUrlKeyword_0()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+rule__URLType__Group__1
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__URLType__Group__1__Impl
+	rule__URLType__Group__2
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__URLType__Group__1__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getURLTypeAccess().getUrlAssignment_1()); }
+(rule__URLType__UrlAssignment_1)
+{ after(grammarAccess.getURLTypeAccess().getUrlAssignment_1()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+rule__URLType__Group__2
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__URLType__Group__2__Impl
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__URLType__Group__2__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getURLTypeAccess().getRightParenthesisKeyword_2()); }
+
+	')' 
+
+{ after(grammarAccess.getURLTypeAccess().getRightParenthesisKeyword_2()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+
+
+
+
+
+
+rule__ValidURLSymbol__Group_18__0
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__ValidURLSymbol__Group_18__0__Impl
+	rule__ValidURLSymbol__Group_18__1
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__ValidURLSymbol__Group_18__0__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getValidURLSymbolAccess().getEqualsSignKeyword_18_0()); }
+
+	'=' 
+
+{ after(grammarAccess.getValidURLSymbolAccess().getEqualsSignKeyword_18_0()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+rule__ValidURLSymbol__Group_18__1
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__ValidURLSymbol__Group_18__1__Impl
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__ValidURLSymbol__Group_18__1__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getValidURLSymbolAccess().getKeywordHackParserRuleCall_18_1()); }
+	ruleKeywordHack
+{ after(grammarAccess.getValidURLSymbolAccess().getKeywordHackParserRuleCall_18_1()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+
+
+
+
+rule__ValidURL__Group_1_10__0
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__ValidURL__Group_1_10__0__Impl
+	rule__ValidURL__Group_1_10__1
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__ValidURL__Group_1_10__0__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getValidURLAccess().getPERCENTTerminalRuleCall_1_10_0()); }
+	RULE_PERCENT
+{ after(grammarAccess.getValidURLAccess().getPERCENTTerminalRuleCall_1_10_0()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+rule__ValidURL__Group_1_10__1
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__ValidURL__Group_1_10__1__Impl
+	rule__ValidURL__Group_1_10__2
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__ValidURL__Group_1_10__1__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getValidURLAccess().getAlternatives_1_10_1()); }
+(rule__ValidURL__Alternatives_1_10_1)
+{ after(grammarAccess.getValidURLAccess().getAlternatives_1_10_1()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+rule__ValidURL__Group_1_10__2
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__ValidURL__Group_1_10__2__Impl
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__ValidURL__Group_1_10__2__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getValidURLAccess().getAlternatives_1_10_2()); }
+(rule__ValidURL__Alternatives_1_10_2)
+{ after(grammarAccess.getValidURLAccess().getAlternatives_1_10_2()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+
+
+
+
+
+
+rule__Identifier__Group__0
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__Identifier__Group__0__Impl
+	rule__Identifier__Group__1
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Identifier__Group__0__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getIdentifierAccess().getDASHTerminalRuleCall_0()); }
+(	RULE_DASH)?
+{ after(grammarAccess.getIdentifierAccess().getDASHTerminalRuleCall_0()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+rule__Identifier__Group__1
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__Identifier__Group__1__Impl
+	rule__Identifier__Group__2
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Identifier__Group__1__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getIdentifierAccess().getAlternatives_1()); }
+(rule__Identifier__Alternatives_1)
+{ after(grammarAccess.getIdentifierAccess().getAlternatives_1()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+rule__Identifier__Group__2
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__Identifier__Group__2__Impl
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Identifier__Group__2__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getIdentifierAccess().getGroup_2()); }
+(rule__Identifier__Group_2__0)*
+{ after(grammarAccess.getIdentifierAccess().getGroup_2()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+
+
+
+
+
+
+rule__Identifier__Group_2__0
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__Identifier__Group_2__0__Impl
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Identifier__Group_2__0__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getIdentifierAccess().getAlternatives_2_0()); }
+(rule__Identifier__Alternatives_2_0)
+{ after(grammarAccess.getIdentifierAccess().getAlternatives_2_0()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+
+
+rule__Num__Group__0
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__Num__Group__0__Impl
+	rule__Num__Group__1
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Num__Group__0__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getNumAccess().getAlternatives_0()); }
+(rule__Num__Alternatives_0)?
+{ after(grammarAccess.getNumAccess().getAlternatives_0()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+rule__Num__Group__1
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__Num__Group__1__Impl
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Num__Group__1__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getNumAccess().getAlternatives_1()); }
+(rule__Num__Alternatives_1)
+{ after(grammarAccess.getNumAccess().getAlternatives_1()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+
+
+
+
+rule__Num__Group_1_0__0
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__Num__Group_1_0__0__Impl
+	rule__Num__Group_1_0__1
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Num__Group_1_0__0__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getNumAccess().getFullStopKeyword_1_0_0()); }
+
+	'.' 
+
+{ after(grammarAccess.getNumAccess().getFullStopKeyword_1_0_0()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+rule__Num__Group_1_0__1
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__Num__Group_1_0__1__Impl
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Num__Group_1_0__1__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+(
+{ before(grammarAccess.getNumAccess().getONE_INTTerminalRuleCall_1_0_1()); }
+(	RULE_ONE_INT)
+{ after(grammarAccess.getNumAccess().getONE_INTTerminalRuleCall_1_0_1()); }
+)
+(
+{ before(grammarAccess.getNumAccess().getONE_INTTerminalRuleCall_1_0_1()); }
+(	RULE_ONE_INT)*
+{ after(grammarAccess.getNumAccess().getONE_INTTerminalRuleCall_1_0_1()); }
+)
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+
+
+
+
+rule__Num__Group_1_1__0
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__Num__Group_1_1__0__Impl
+	rule__Num__Group_1_1__1
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Num__Group_1_1__0__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+(
+{ before(grammarAccess.getNumAccess().getONE_INTTerminalRuleCall_1_1_0()); }
+(	RULE_ONE_INT)
+{ after(grammarAccess.getNumAccess().getONE_INTTerminalRuleCall_1_1_0()); }
+)
+(
+{ before(grammarAccess.getNumAccess().getONE_INTTerminalRuleCall_1_1_0()); }
+(	RULE_ONE_INT)*
+{ after(grammarAccess.getNumAccess().getONE_INTTerminalRuleCall_1_1_0()); }
+)
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+rule__Num__Group_1_1__1
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__Num__Group_1_1__1__Impl
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Num__Group_1_1__1__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getNumAccess().getGroup_1_1_1()); }
+(rule__Num__Group_1_1_1__0)?
+{ after(grammarAccess.getNumAccess().getGroup_1_1_1()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+
+
+
+
+rule__Num__Group_1_1_1__0
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__Num__Group_1_1_1__0__Impl
+	rule__Num__Group_1_1_1__1
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Num__Group_1_1_1__0__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getNumAccess().getFullStopKeyword_1_1_1_0()); }
+(
+	'.' 
+)
+{ after(grammarAccess.getNumAccess().getFullStopKeyword_1_1_1_0()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+rule__Num__Group_1_1_1__1
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__Num__Group_1_1_1__1__Impl
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Num__Group_1_1_1__1__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+(
+{ before(grammarAccess.getNumAccess().getONE_INTTerminalRuleCall_1_1_1_1()); }
+(	RULE_ONE_INT)
+{ after(grammarAccess.getNumAccess().getONE_INTTerminalRuleCall_1_1_1_1()); }
+)
+(
+{ before(grammarAccess.getNumAccess().getONE_INTTerminalRuleCall_1_1_1_1()); }
+(	RULE_ONE_INT)*
+{ after(grammarAccess.getNumAccess().getONE_INTTerminalRuleCall_1_1_1_1()); }
+)
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+
+
+
+
+rule__Hex__Group__0
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__Hex__Group__0__Impl
+	rule__Hex__Group__1
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Hex__Group__0__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getHexAccess().getHASHMARKTerminalRuleCall_0()); }
+	RULE_HASHMARK
+{ after(grammarAccess.getHexAccess().getHASHMARKTerminalRuleCall_0()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+rule__Hex__Group__1
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__Hex__Group__1__Impl
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Hex__Group__1__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+(
+{ before(grammarAccess.getHexAccess().getGroup_1()); }
+(rule__Hex__Group_1__0)
+{ after(grammarAccess.getHexAccess().getGroup_1()); }
+)
+(
+{ before(grammarAccess.getHexAccess().getGroup_1()); }
+(rule__Hex__Group_1__0)*
+{ after(grammarAccess.getHexAccess().getGroup_1()); }
+)
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+
+
+
+
+rule__Hex__Group_1__0
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+	rule__Hex__Group_1__0__Impl
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Hex__Group_1__0__Impl
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getHexAccess().getAlternatives_1_0()); }
+(rule__Hex__Alternatives_1_0)
+{ after(grammarAccess.getHexAccess().getAlternatives_1_0()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+
+
+
+rule__Stylesheet__CharsetAssignment_0
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getStylesheetAccess().getCharsetCharsetParserRuleCall_0_0()); }
+	rulecharset{ after(grammarAccess.getStylesheetAccess().getCharsetCharsetParserRuleCall_0_0()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Stylesheet__ImportsAssignment_1
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getStylesheetAccess().getImportsImportExpressionParserRuleCall_1_0()); }
+	ruleimportExpression{ after(grammarAccess.getStylesheetAccess().getImportsImportExpressionParserRuleCall_1_0()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Stylesheet__RulesetAssignment_2_0
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getStylesheetAccess().getRulesetRulesetParserRuleCall_2_0_0()); }
+	ruleruleset{ after(grammarAccess.getStylesheetAccess().getRulesetRulesetParserRuleCall_2_0_0()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Stylesheet__MediaAssignment_2_1
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getStylesheetAccess().getMediaMediaParserRuleCall_2_1_0()); }
+	rulemedia{ after(grammarAccess.getStylesheetAccess().getMediaMediaParserRuleCall_2_1_0()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Stylesheet__PageAssignment_2_2
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getStylesheetAccess().getPagePageParserRuleCall_2_2_0()); }
+	rulepage{ after(grammarAccess.getStylesheetAccess().getPagePageParserRuleCall_2_2_0()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Stylesheet__Font_faceAssignment_2_3
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getStylesheetAccess().getFont_faceFont_faceParserRuleCall_2_3_0()); }
+	rulefont_face{ after(grammarAccess.getStylesheetAccess().getFont_faceFont_faceParserRuleCall_2_3_0()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Stylesheet__KeyframesAssignment_2_4
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getStylesheetAccess().getKeyframesKeyframesParserRuleCall_2_4_0()); }
+	rulekeyframes{ after(grammarAccess.getStylesheetAccess().getKeyframesKeyframesParserRuleCall_2_4_0()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Charset__CharsetAssignment_1
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getCharsetAccess().getCharsetCSSSTRINGTerminalRuleCall_1_0()); }
+	RULE_CSSSTRING{ after(grammarAccess.getCharsetAccess().getCharsetCSSSTRINGTerminalRuleCall_1_0()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__ImportExpression__ValueAssignment_1_0
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getImportExpressionAccess().getValueCSSSTRINGTerminalRuleCall_1_0_0()); }
+	RULE_CSSSTRING{ after(grammarAccess.getImportExpressionAccess().getValueCSSSTRINGTerminalRuleCall_1_0_0()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__ImportExpression__MediaListAssignment_1_1_1
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getImportExpressionAccess().getMediaListMedia_listParserRuleCall_1_1_1_0()); }
+	rulemedia_list{ after(grammarAccess.getImportExpressionAccess().getMediaListMedia_listParserRuleCall_1_1_1_0()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Page__PseudoPageAssignment_2
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getPageAccess().getPseudoPagePseudo_pageParserRuleCall_2_0()); }
+	rulepseudo_page{ after(grammarAccess.getPageAccess().getPseudoPagePseudo_pageParserRuleCall_2_0()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Page__DeclarationsAssignment_4
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getPageAccess().getDeclarationsCss_declarationParserRuleCall_4_0()); }
+	rulecss_declaration{ after(grammarAccess.getPageAccess().getDeclarationsCss_declarationParserRuleCall_4_0()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Page__DeclarationsAssignment_5_1
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getPageAccess().getDeclarationsCss_declarationParserRuleCall_5_1_0()); }
+	rulecss_declaration{ after(grammarAccess.getPageAccess().getDeclarationsCss_declarationParserRuleCall_5_1_0()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Media__MedialistAssignment_1
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getMediaAccess().getMedialistMedia_listParserRuleCall_1_0()); }
+	rulemedia_list{ after(grammarAccess.getMediaAccess().getMedialistMedia_listParserRuleCall_1_0()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Media__RulesetsAssignment_3
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getMediaAccess().getRulesetsRulesetParserRuleCall_3_0()); }
+	ruleruleset{ after(grammarAccess.getMediaAccess().getRulesetsRulesetParserRuleCall_3_0()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Font_face__DeclarationsAssignment_3
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getFont_faceAccess().getDeclarationsCss_declarationParserRuleCall_3_0()); }
+	rulecss_declaration{ after(grammarAccess.getFont_faceAccess().getDeclarationsCss_declarationParserRuleCall_3_0()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Font_face__DeclarationsAssignment_4_1
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getFont_faceAccess().getDeclarationsCss_declarationParserRuleCall_4_1_0()); }
+	rulecss_declaration{ after(grammarAccess.getFont_faceAccess().getDeclarationsCss_declarationParserRuleCall_4_1_0()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Keyframes__NameAssignment_2
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getKeyframesAccess().getNameIdentifierParserRuleCall_2_0()); }
+	ruleIdentifier{ after(grammarAccess.getKeyframesAccess().getNameIdentifierParserRuleCall_2_0()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Keyframes__KeyframeselectorsAssignment_4
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getKeyframesAccess().getKeyframeselectorsKeyframe_selectorParserRuleCall_4_0()); }
+	rulekeyframe_selector{ after(grammarAccess.getKeyframesAccess().getKeyframeselectorsKeyframe_selectorParserRuleCall_4_0()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Keyframes__KeyframeselectorsAssignment_5_1
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getKeyframesAccess().getKeyframeselectorsKeyframe_selectorParserRuleCall_5_1_0()); }
+	rulekeyframe_selector{ after(grammarAccess.getKeyframesAccess().getKeyframeselectorsKeyframe_selectorParserRuleCall_5_1_0()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Keyframe_selector__TypeAssignment_0_0
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getKeyframe_selectorAccess().getTypeIdentifierParserRuleCall_0_0_0()); }
+	ruleIdentifier{ after(grammarAccess.getKeyframe_selectorAccess().getTypeIdentifierParserRuleCall_0_0_0()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Keyframe_selector__PercentageAssignment_0_1_0
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getKeyframe_selectorAccess().getPercentageNumParserRuleCall_0_1_0_0()); }
+	ruleNum{ after(grammarAccess.getKeyframe_selectorAccess().getPercentageNumParserRuleCall_0_1_0_0()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Keyframe_selector__DeclarationsAssignment_2
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getKeyframe_selectorAccess().getDeclarationsCss_declarationParserRuleCall_2_0()); }
+	rulecss_declaration{ after(grammarAccess.getKeyframe_selectorAccess().getDeclarationsCss_declarationParserRuleCall_2_0()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Keyframe_selector__DeclarationsAssignment_3_1
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getKeyframe_selectorAccess().getDeclarationsCss_declarationParserRuleCall_3_1_0()); }
+	rulecss_declaration{ after(grammarAccess.getKeyframe_selectorAccess().getDeclarationsCss_declarationParserRuleCall_3_1_0()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Ruleset__SelectorsAssignment_0
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getRulesetAccess().getSelectorsSelectorParserRuleCall_0_0()); }
+	ruleselector{ after(grammarAccess.getRulesetAccess().getSelectorsSelectorParserRuleCall_0_0()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Ruleset__SelectorsAssignment_1_2
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getRulesetAccess().getSelectorsSelectorParserRuleCall_1_2_0()); }
+	ruleselector{ after(grammarAccess.getRulesetAccess().getSelectorsSelectorParserRuleCall_1_2_0()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Ruleset__DeclarationsAssignment_4_0
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getRulesetAccess().getDeclarationsCss_declarationParserRuleCall_4_0_0()); }
+	rulecss_declaration{ after(grammarAccess.getRulesetAccess().getDeclarationsCss_declarationParserRuleCall_4_0_0()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Ruleset__DeclarationsAssignment_4_1_1
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getRulesetAccess().getDeclarationsCss_declarationParserRuleCall_4_1_1_0()); }
+	rulecss_declaration{ after(grammarAccess.getRulesetAccess().getDeclarationsCss_declarationParserRuleCall_4_1_1_0()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Selector__SimpleselectorsAssignment_0
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getSelectorAccess().getSimpleselectorsSimple_selectorParserRuleCall_0_0()); }
+	rulesimple_selector{ after(grammarAccess.getSelectorAccess().getSimpleselectorsSimple_selectorParserRuleCall_0_0()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Selector__CombinatorAssignment_1_0_0
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getSelectorAccess().getCombinatorCombinatorParserRuleCall_1_0_0_0()); }
+	rulecombinator{ after(grammarAccess.getSelectorAccess().getCombinatorCombinatorParserRuleCall_1_0_0_0()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Selector__SelectorAssignment_1_0_2
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getSelectorAccess().getSelectorSelectorParserRuleCall_1_0_2_0()); }
+	ruleselector{ after(grammarAccess.getSelectorAccess().getSelectorSelectorParserRuleCall_1_0_2_0()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Selector__CombinatorAssignment_1_1_1_0
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getSelectorAccess().getCombinatorCombinatorParserRuleCall_1_1_1_0_0()); }
+	rulecombinator{ after(grammarAccess.getSelectorAccess().getCombinatorCombinatorParserRuleCall_1_1_1_0_0()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Selector__SelectorAssignment_1_1_2
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getSelectorAccess().getSelectorSelectorParserRuleCall_1_1_2_0()); }
+	ruleselector{ after(grammarAccess.getSelectorAccess().getSelectorSelectorParserRuleCall_1_1_2_0()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__SimpleSelectorForNegation__ElementAssignment_0_0_0
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getSimpleSelectorForNegationAccess().getElementElementSelectorParserRuleCall_0_0_0_0()); }
+	ruleElementSelector{ after(grammarAccess.getSimpleSelectorForNegationAccess().getElementElementSelectorParserRuleCall_0_0_0_0()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__SimpleSelectorForNegation__UniversalAssignment_0_0_1
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getSimpleSelectorForNegationAccess().getUniversalUniversalSelectorParserRuleCall_0_0_1_0()); }
+	ruleUniversalSelector{ after(grammarAccess.getSimpleSelectorForNegationAccess().getUniversalUniversalSelectorParserRuleCall_0_0_1_0()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__SimpleSelectorForNegation__SubSelectorsAssignment_0_1
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getSimpleSelectorForNegationAccess().getSubSelectorsSubSelectorForNegationParserRuleCall_0_1_0()); }
+	ruleSubSelectorForNegation{ after(grammarAccess.getSimpleSelectorForNegationAccess().getSubSelectorsSubSelectorForNegationParserRuleCall_0_1_0()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__SimpleSelectorForNegation__SubSelectorsAssignment_1
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getSimpleSelectorForNegationAccess().getSubSelectorsSubSelectorForNegationParserRuleCall_1_0()); }
+	ruleSubSelectorForNegation{ after(grammarAccess.getSimpleSelectorForNegationAccess().getSubSelectorsSubSelectorForNegationParserRuleCall_1_0()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Simple_selector__ElementAssignment_0_0_0
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getSimple_selectorAccess().getElementElementSelectorParserRuleCall_0_0_0_0()); }
+	ruleElementSelector{ after(grammarAccess.getSimple_selectorAccess().getElementElementSelectorParserRuleCall_0_0_0_0()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Simple_selector__UniversalAssignment_0_0_1
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getSimple_selectorAccess().getUniversalUniversalSelectorParserRuleCall_0_0_1_0()); }
+	ruleUniversalSelector{ after(grammarAccess.getSimple_selectorAccess().getUniversalUniversalSelectorParserRuleCall_0_0_1_0()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Simple_selector__SubSelectorsAssignment_0_1
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getSimple_selectorAccess().getSubSelectorsSubSelectorParserRuleCall_0_1_0()); }
+	ruleSubSelector{ after(grammarAccess.getSimple_selectorAccess().getSubSelectorsSubSelectorParserRuleCall_0_1_0()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Simple_selector__SubSelectorsAssignment_1
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getSimple_selectorAccess().getSubSelectorsSubSelectorParserRuleCall_1_0()); }
+	ruleSubSelector{ after(grammarAccess.getSimple_selectorAccess().getSubSelectorsSubSelectorParserRuleCall_1_0()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__AttributeSelector__NameAssignment_2
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getAttributeSelectorAccess().getNameIdentifierParserRuleCall_2_0()); }
+	ruleIdentifier{ after(grammarAccess.getAttributeSelectorAccess().getNameIdentifierParserRuleCall_2_0()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__AttributeSelector__OpAssignment_3_0
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getAttributeSelectorAccess().getOpAlternatives_3_0_0()); }
+(rule__AttributeSelector__OpAlternatives_3_0_0)
+{ after(grammarAccess.getAttributeSelectorAccess().getOpAlternatives_3_0_0()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__AttributeSelector__ValueAssignment_3_1
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getAttributeSelectorAccess().getValueAlternatives_3_1_0()); }
+(rule__AttributeSelector__ValueAlternatives_3_1_0)
+{ after(grammarAccess.getAttributeSelectorAccess().getValueAlternatives_3_1_0()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__ClassSelector__NameAssignment_2
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getClassSelectorAccess().getNameIdentifierParserRuleCall_2_0()); }
+	ruleIdentifier{ after(grammarAccess.getClassSelectorAccess().getNameIdentifierParserRuleCall_2_0()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__ElementSelector__NameAssignment_1
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getElementSelectorAccess().getNameIdentifierParserRuleCall_1_0()); }
+	ruleIdentifier{ after(grammarAccess.getElementSelectorAccess().getNameIdentifierParserRuleCall_1_0()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__UniversalSelector__NamespaceAssignment_1
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getUniversalSelectorAccess().getNamespaceCss_namespace_prefixParserRuleCall_1_0()); }
+	rulecss_namespace_prefix{ after(grammarAccess.getUniversalSelectorAccess().getNamespaceCss_namespace_prefixParserRuleCall_1_0()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__IdSelector__NameAssignment_2
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getIdSelectorAccess().getNameIdentifierParserRuleCall_2_0()); }
+	ruleIdentifier{ after(grammarAccess.getIdSelectorAccess().getNameIdentifierParserRuleCall_2_0()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Css_declaration__PropertyAssignment_1
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getCss_declarationAccess().getPropertyCss_propertyParserRuleCall_1_0()); }
+	rulecss_property{ after(grammarAccess.getCss_declarationAccess().getPropertyCss_propertyParserRuleCall_1_0()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Css_declaration__ValueTokensAssignment_4
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getCss_declarationAccess().getValueTokensCssTokParserRuleCall_4_0()); }
+	ruleCssTok{ after(grammarAccess.getCss_declarationAccess().getValueTokensCssTokParserRuleCall_4_0()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Css_declaration__ImportantAssignment_5
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getCss_declarationAccess().getImportantIMPORTANT_SYMTerminalRuleCall_5_0()); }
+	RULE_IMPORTANT_SYM{ after(grammarAccess.getCss_declarationAccess().getImportantIMPORTANT_SYMTerminalRuleCall_5_0()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__Css_property__NameAssignment_1
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getCss_propertyAccess().getNameValidPropertyIdentParserRuleCall_1_0()); }
+	ruleValidPropertyIdent{ after(grammarAccess.getCss_propertyAccess().getNameValidPropertyIdentParserRuleCall_1_0()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__PseudoClassName__NameAssignment
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getPseudoClassNameAccess().getNameIdentifierParserRuleCall_0()); }
+	ruleIdentifier{ after(grammarAccess.getPseudoClassNameAccess().getNameIdentifierParserRuleCall_0()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__PseudoClassFunction__NotAssignment_0_0
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getPseudoClassFunctionAccess().getNotNotFunctionCallParserRuleCall_0_0_0()); }
+	ruleNotFunctionCall{ after(grammarAccess.getPseudoClassFunctionAccess().getNotNotFunctionCallParserRuleCall_0_0_0()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__PseudoClassFunction__ParamSelectorAssignment_0_1
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getPseudoClassFunctionAccess().getParamSelectorSimpleSelectorForNegationParserRuleCall_0_1_0()); }
+	ruleSimpleSelectorForNegation{ after(grammarAccess.getPseudoClassFunctionAccess().getParamSelectorSimpleSelectorForNegationParserRuleCall_0_1_0()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__PseudoClassFunction__NameAssignment_1_1
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getPseudoClassFunctionAccess().getNameIdentifierParserRuleCall_1_1_0()); }
+	ruleIdentifier{ after(grammarAccess.getPseudoClassFunctionAccess().getNameIdentifierParserRuleCall_1_1_0()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__PseudoClassFunction__ParamsAssignment_1_3
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getPseudoClassFunctionAccess().getParamsCssTokParserRuleCall_1_3_0()); }
+	ruleCssTok{ after(grammarAccess.getPseudoClassFunctionAccess().getParamsCssTokParserRuleCall_1_3_0()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__SymbolTok__SymbolAssignment_1
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getSymbolTokAccess().getSymbolAlternatives_1_0()); }
+(rule__SymbolTok__SymbolAlternatives_1_0)
+{ after(grammarAccess.getSymbolTokAccess().getSymbolAlternatives_1_0()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__StringTok__ValueAssignment_1
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getStringTokAccess().getValueCSSSTRINGTerminalRuleCall_1_0()); }
+	RULE_CSSSTRING{ after(grammarAccess.getStringTokAccess().getValueCSSSTRINGTerminalRuleCall_1_0()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__NumberTok__ValAssignment_1
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getNumberTokAccess().getValNumParserRuleCall_1_0()); }
+	ruleNum{ after(grammarAccess.getNumberTokAccess().getValNumParserRuleCall_1_0()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__UrlTok__UrlAssignment_1
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getUrlTokAccess().getUrlURLTypeParserRuleCall_1_0()); }
+	ruleURLType{ after(grammarAccess.getUrlTokAccess().getUrlURLTypeParserRuleCall_1_0()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__ColorTok__ValueAssignment_1
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getColorTokAccess().getValueHexParserRuleCall_1_0()); }
+	ruleHex{ after(grammarAccess.getColorTokAccess().getValueHexParserRuleCall_1_0()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__IdentifierOrFuncTok__NameAssignment_1
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getIdentifierOrFuncTokAccess().getNameIdentifierParserRuleCall_1_0()); }
+	ruleIdentifier{ after(grammarAccess.getIdentifierOrFuncTokAccess().getNameIdentifierParserRuleCall_1_0()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__IdentifierOrFuncTok__ParamsAssignment_2_2
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getIdentifierOrFuncTokAccess().getParamsCssTokParserRuleCall_2_2_0()); }
+	ruleCssTok{ after(grammarAccess.getIdentifierOrFuncTokAccess().getParamsCssTokParserRuleCall_2_2_0()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+rule__URLType__UrlAssignment_1
+    @init {
+		int stackSize = keepStackSize();
+    }
+:
+(
+{ before(grammarAccess.getURLTypeAccess().getUrlValidURLParserRuleCall_1_0()); }
+	ruleValidURL{ after(grammarAccess.getURLTypeAccess().getUrlValidURLParserRuleCall_1_0()); }
+)
+
+;
+finally {
+	restoreStackSize(stackSize);
+}
+
+
+RULE_IMPORTANT_SYM : '!important';
+
+RULE_ONE_INT : '0'..'9';
+
+RULE_ONE_HEX_LETTER : ('a'..'f'|'A'..'F');
+
+RULE_ONE_NON_HEX_LETTER : ('g'..'z'|'G'..'Z');
+
+RULE_UNDERSCORE : '_';
+
+RULE_DASH : '-';
+
+RULE_PLUS : '+';
+
+RULE_HASHMARK : '#';
+
+RULE_COMMA : ',';
+
+RULE_PERCENT : '%';
+
+RULE_ML_COMMENT : '/*' ( options {greedy=false;} : . )*'*/';
+
+RULE_WS : (' '|'\t'|'\r'|'\n')+;
+
+RULE_CSSSTRING : ('"' ('\\' ('b'|'t'|'n'|'f'|'r'|'u'|'"'|'\''|'0'..'9'|'a'..'f'|'A'..'F'|'\\')|~(('\\'|'"')))* '"'|'\'' ('\\' ('b'|'t'|'n'|'f'|'r'|'u'|'"'|'\''|'0'..'9'|'a'..'f'|'A'..'F'|'\\')|~(('\\'|'\'')))* '\'');
+
+RULE_INCLUDES : '~=';
+
+RULE_DASHMATCH : '|=';
+
+RULE_COLON : ':';
+
+
diff --git a/plugins/infra/gmfdiag/css/org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.tokens b/plugins/infra/gmfdiag/css/org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.tokens
new file mode 100644
index 00000000000..cd00576f6ac
--- /dev/null
+++ b/plugins/infra/gmfdiag/css/org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.tokens
@@ -0,0 +1,106 @@
+'!'=45
+'$'=46
+'$='=33
+'&'=47
+'('=62
+')'=61
+'*'=36
+'*='=34
+'.'=39
+'/'=40
+';'=48
+'='=35
+'>'=37
+'?'=41
+'@'=44
+'@CHARSET'=21
+'@FONT-FACE'=29
+'@IMPORT'=23
+'@KEYFRAMES'=31
+'@MEDIA'=27
+'@PAGE'=25
+'@charset'=20
+'@font-face'=28
+'@import'=22
+'@keyframes'=30
+'@media'=26
+'@page'=24
+'['=42
+'\\ '=53
+'\\"'=57
+'\\('=54
+'\\)'=55
+'\\\''=56
+']'=43
+'^='=32
+'no'=50
+'not'=49
+'not('=63
+'ur'=52
+'url'=51
+'url('=64
+'{'=58
+'|'=60
+'}'=59
+'~'=38
+RULE_COLON=12
+RULE_COMMA=8
+RULE_CSSSTRING=6
+RULE_DASH=10
+RULE_DASHMATCH=5
+RULE_HASHMARK=13
+RULE_IMPORTANT_SYM=18
+RULE_INCLUDES=4
+RULE_ML_COMMENT=19
+RULE_ONE_HEX_LETTER=14
+RULE_ONE_INT=16
+RULE_ONE_NON_HEX_LETTER=15
+RULE_PERCENT=9
+RULE_PLUS=7
+RULE_UNDERSCORE=11
+RULE_WS=17
+T__20=20
+T__21=21
+T__22=22
+T__23=23
+T__24=24
+T__25=25
+T__26=26
+T__27=27
+T__28=28
+T__29=29
+T__30=30
+T__31=31
+T__32=32
+T__33=33
+T__34=34
+T__35=35
+T__36=36
+T__37=37
+T__38=38
+T__39=39
+T__40=40
+T__41=41
+T__42=42
+T__43=43
+T__44=44
+T__45=45
+T__46=46
+T__47=47
+T__48=48
+T__49=49
+T__50=50
+T__51=51
+T__52=52
+T__53=53
+T__54=54
+T__55=55
+T__56=56
+T__57=57
+T__58=58
+T__59=59
+T__60=60
+T__61=61
+T__62=62
+T__63=63
+T__64=64
diff --git a/plugins/infra/gmfdiag/css/org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSSLexer.java b/plugins/infra/gmfdiag/css/org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSSLexer.java
new file mode 100644
index 00000000000..de6151ac446
--- /dev/null
+++ b/plugins/infra/gmfdiag/css/org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSSLexer.java
@@ -0,0 +1,2179 @@
+package org.eclipse.papyrus.infra.gmfdiag.css3.ui.contentassist.antlr.internal;
+
+// Hack: Use our own Lexer superclass by means of import.
+// Currently there is no other way to specify the superclass for the lexer.
+import org.eclipse.xtext.ui.editor.contentassist.antlr.internal.Lexer;
+
+import org.antlr.runtime.*;
+
+@SuppressWarnings("all")
+public class InternalCSSLexer extends Lexer {
+	public static final int T__64 = 64;
+	public static final int T__29 = 29;
+	public static final int T__28 = 28;
+	public static final int T__27 = 27;
+	public static final int T__62 = 62;
+	public static final int T__26 = 26;
+	public static final int T__63 = 63;
+	public static final int T__25 = 25;
+	public static final int T__24 = 24;
+	public static final int T__23 = 23;
+	public static final int RULE_INCLUDES = 4;
+	public static final int T__22 = 22;
+	public static final int T__21 = 21;
+	public static final int T__20 = 20;
+	public static final int RULE_ONE_INT = 16;
+	public static final int RULE_PERCENT = 9;
+	public static final int T__61 = 61;
+	public static final int EOF = -1;
+	public static final int T__60 = 60;
+	public static final int T__55 = 55;
+	public static final int T__56 = 56;
+	public static final int T__57 = 57;
+	public static final int T__58 = 58;
+	public static final int T__51 = 51;
+	public static final int T__52 = 52;
+	public static final int T__53 = 53;
+	public static final int T__54 = 54;
+	public static final int RULE_ONE_NON_HEX_LETTER = 15;
+	public static final int T__59 = 59;
+	public static final int T__50 = 50;
+	public static final int T__42 = 42;
+	public static final int T__43 = 43;
+	public static final int T__40 = 40;
+	public static final int T__41 = 41;
+	public static final int T__46 = 46;
+	public static final int T__47 = 47;
+	public static final int T__44 = 44;
+	public static final int T__45 = 45;
+	public static final int T__48 = 48;
+	public static final int T__49 = 49;
+	public static final int RULE_UNDERSCORE = 11;
+	public static final int RULE_PLUS = 7;
+	public static final int RULE_ONE_HEX_LETTER = 14;
+	public static final int RULE_COMMA = 8;
+	public static final int RULE_HASHMARK = 13;
+	public static final int RULE_ML_COMMENT = 19;
+	public static final int RULE_DASHMATCH = 5;
+	public static final int T__30 = 30;
+	public static final int T__31 = 31;
+	public static final int RULE_COLON = 12;
+	public static final int T__32 = 32;
+	public static final int T__33 = 33;
+	public static final int T__34 = 34;
+	public static final int T__35 = 35;
+	public static final int T__36 = 36;
+	public static final int T__37 = 37;
+	public static final int T__38 = 38;
+	public static final int T__39 = 39;
+	public static final int RULE_CSSSTRING = 6;
+	public static final int RULE_IMPORTANT_SYM = 18;
+	public static final int RULE_WS = 17;
+	public static final int RULE_DASH = 10;
+
+	// delegates
+	// delegators
+
+	public InternalCSSLexer() {
+		;
+	}
+
+	public InternalCSSLexer(CharStream input) {
+		this(input, new RecognizerSharedState());
+	}
+
+	public InternalCSSLexer(CharStream input, RecognizerSharedState state) {
+		super(input, state);
+
+	}
+
+	@Override
+	public String getGrammarFileName() {
+		return "../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g";
+	}
+
+	// $ANTLR start "T__20"
+	public final void mT__20() throws RecognitionException {
+		try {
+			int _type = T__20;
+			int _channel = DEFAULT_TOKEN_CHANNEL;
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:11:7: ( '@charset' )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:11:9: '@charset'
+			{
+				match("@charset");
+
+
+			}
+
+			state.type = _type;
+			state.channel = _channel;
+		} finally {
+		}
+	}
+
+	// $ANTLR end "T__20"
+
+	// $ANTLR start "T__21"
+	public final void mT__21() throws RecognitionException {
+		try {
+			int _type = T__21;
+			int _channel = DEFAULT_TOKEN_CHANNEL;
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:12:7: ( '@CHARSET' )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:12:9: '@CHARSET'
+			{
+				match("@CHARSET");
+
+
+			}
+
+			state.type = _type;
+			state.channel = _channel;
+		} finally {
+		}
+	}
+
+	// $ANTLR end "T__21"
+
+	// $ANTLR start "T__22"
+	public final void mT__22() throws RecognitionException {
+		try {
+			int _type = T__22;
+			int _channel = DEFAULT_TOKEN_CHANNEL;
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:13:7: ( '@import' )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:13:9: '@import'
+			{
+				match("@import");
+
+
+			}
+
+			state.type = _type;
+			state.channel = _channel;
+		} finally {
+		}
+	}
+
+	// $ANTLR end "T__22"
+
+	// $ANTLR start "T__23"
+	public final void mT__23() throws RecognitionException {
+		try {
+			int _type = T__23;
+			int _channel = DEFAULT_TOKEN_CHANNEL;
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:14:7: ( '@IMPORT' )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:14:9: '@IMPORT'
+			{
+				match("@IMPORT");
+
+
+			}
+
+			state.type = _type;
+			state.channel = _channel;
+		} finally {
+		}
+	}
+
+	// $ANTLR end "T__23"
+
+	// $ANTLR start "T__24"
+	public final void mT__24() throws RecognitionException {
+		try {
+			int _type = T__24;
+			int _channel = DEFAULT_TOKEN_CHANNEL;
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:15:7: ( '@page' )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:15:9: '@page'
+			{
+				match("@page");
+
+
+			}
+
+			state.type = _type;
+			state.channel = _channel;
+		} finally {
+		}
+	}
+
+	// $ANTLR end "T__24"
+
+	// $ANTLR start "T__25"
+	public final void mT__25() throws RecognitionException {
+		try {
+			int _type = T__25;
+			int _channel = DEFAULT_TOKEN_CHANNEL;
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:16:7: ( '@PAGE' )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:16:9: '@PAGE'
+			{
+				match("@PAGE");
+
+
+			}
+
+			state.type = _type;
+			state.channel = _channel;
+		} finally {
+		}
+	}
+
+	// $ANTLR end "T__25"
+
+	// $ANTLR start "T__26"
+	public final void mT__26() throws RecognitionException {
+		try {
+			int _type = T__26;
+			int _channel = DEFAULT_TOKEN_CHANNEL;
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:17:7: ( '@media' )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:17:9: '@media'
+			{
+				match("@media");
+
+
+			}
+
+			state.type = _type;
+			state.channel = _channel;
+		} finally {
+		}
+	}
+
+	// $ANTLR end "T__26"
+
+	// $ANTLR start "T__27"
+	public final void mT__27() throws RecognitionException {
+		try {
+			int _type = T__27;
+			int _channel = DEFAULT_TOKEN_CHANNEL;
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:18:7: ( '@MEDIA' )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:18:9: '@MEDIA'
+			{
+				match("@MEDIA");
+
+
+			}
+
+			state.type = _type;
+			state.channel = _channel;
+		} finally {
+		}
+	}
+
+	// $ANTLR end "T__27"
+
+	// $ANTLR start "T__28"
+	public final void mT__28() throws RecognitionException {
+		try {
+			int _type = T__28;
+			int _channel = DEFAULT_TOKEN_CHANNEL;
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:19:7: ( '@font-face' )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:19:9: '@font-face'
+			{
+				match("@font-face");
+
+
+			}
+
+			state.type = _type;
+			state.channel = _channel;
+		} finally {
+		}
+	}
+
+	// $ANTLR end "T__28"
+
+	// $ANTLR start "T__29"
+	public final void mT__29() throws RecognitionException {
+		try {
+			int _type = T__29;
+			int _channel = DEFAULT_TOKEN_CHANNEL;
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:20:7: ( '@FONT-FACE' )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:20:9: '@FONT-FACE'
+			{
+				match("@FONT-FACE");
+
+
+			}
+
+			state.type = _type;
+			state.channel = _channel;
+		} finally {
+		}
+	}
+
+	// $ANTLR end "T__29"
+
+	// $ANTLR start "T__30"
+	public final void mT__30() throws RecognitionException {
+		try {
+			int _type = T__30;
+			int _channel = DEFAULT_TOKEN_CHANNEL;
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:21:7: ( '@keyframes' )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:21:9: '@keyframes'
+			{
+				match("@keyframes");
+
+
+			}
+
+			state.type = _type;
+			state.channel = _channel;
+		} finally {
+		}
+	}
+
+	// $ANTLR end "T__30"
+
+	// $ANTLR start "T__31"
+	public final void mT__31() throws RecognitionException {
+		try {
+			int _type = T__31;
+			int _channel = DEFAULT_TOKEN_CHANNEL;
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:22:7: ( '@KEYFRAMES' )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:22:9: '@KEYFRAMES'
+			{
+				match("@KEYFRAMES");
+
+
+			}
+
+			state.type = _type;
+			state.channel = _channel;
+		} finally {
+		}
+	}
+
+	// $ANTLR end "T__31"
+
+	// $ANTLR start "T__32"
+	public final void mT__32() throws RecognitionException {
+		try {
+			int _type = T__32;
+			int _channel = DEFAULT_TOKEN_CHANNEL;
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:23:7: ( '^=' )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:23:9: '^='
+			{
+				match("^=");
+
+
+			}
+
+			state.type = _type;
+			state.channel = _channel;
+		} finally {
+		}
+	}
+
+	// $ANTLR end "T__32"
+
+	// $ANTLR start "T__33"
+	public final void mT__33() throws RecognitionException {
+		try {
+			int _type = T__33;
+			int _channel = DEFAULT_TOKEN_CHANNEL;
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:24:7: ( '$=' )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:24:9: '$='
+			{
+				match("$=");
+
+
+			}
+
+			state.type = _type;
+			state.channel = _channel;
+		} finally {
+		}
+	}
+
+	// $ANTLR end "T__33"
+
+	// $ANTLR start "T__34"
+	public final void mT__34() throws RecognitionException {
+		try {
+			int _type = T__34;
+			int _channel = DEFAULT_TOKEN_CHANNEL;
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:25:7: ( '*=' )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:25:9: '*='
+			{
+				match("*=");
+
+
+			}
+
+			state.type = _type;
+			state.channel = _channel;
+		} finally {
+		}
+	}
+
+	// $ANTLR end "T__34"
+
+	// $ANTLR start "T__35"
+	public final void mT__35() throws RecognitionException {
+		try {
+			int _type = T__35;
+			int _channel = DEFAULT_TOKEN_CHANNEL;
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:26:7: ( '=' )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:26:9: '='
+			{
+				match('=');
+
+			}
+
+			state.type = _type;
+			state.channel = _channel;
+		} finally {
+		}
+	}
+
+	// $ANTLR end "T__35"
+
+	// $ANTLR start "T__36"
+	public final void mT__36() throws RecognitionException {
+		try {
+			int _type = T__36;
+			int _channel = DEFAULT_TOKEN_CHANNEL;
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:27:7: ( '*' )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:27:9: '*'
+			{
+				match('*');
+
+			}
+
+			state.type = _type;
+			state.channel = _channel;
+		} finally {
+		}
+	}
+
+	// $ANTLR end "T__36"
+
+	// $ANTLR start "T__37"
+	public final void mT__37() throws RecognitionException {
+		try {
+			int _type = T__37;
+			int _channel = DEFAULT_TOKEN_CHANNEL;
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:28:7: ( '>' )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:28:9: '>'
+			{
+				match('>');
+
+			}
+
+			state.type = _type;
+			state.channel = _channel;
+		} finally {
+		}
+	}
+
+	// $ANTLR end "T__37"
+
+	// $ANTLR start "T__38"
+	public final void mT__38() throws RecognitionException {
+		try {
+			int _type = T__38;
+			int _channel = DEFAULT_TOKEN_CHANNEL;
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:29:7: ( '~' )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:29:9: '~'
+			{
+				match('~');
+
+			}
+
+			state.type = _type;
+			state.channel = _channel;
+		} finally {
+		}
+	}
+
+	// $ANTLR end "T__38"
+
+	// $ANTLR start "T__39"
+	public final void mT__39() throws RecognitionException {
+		try {
+			int _type = T__39;
+			int _channel = DEFAULT_TOKEN_CHANNEL;
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:30:7: ( '.' )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:30:9: '.'
+			{
+				match('.');
+
+			}
+
+			state.type = _type;
+			state.channel = _channel;
+		} finally {
+		}
+	}
+
+	// $ANTLR end "T__39"
+
+	// $ANTLR start "T__40"
+	public final void mT__40() throws RecognitionException {
+		try {
+			int _type = T__40;
+			int _channel = DEFAULT_TOKEN_CHANNEL;
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:31:7: ( '/' )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:31:9: '/'
+			{
+				match('/');
+
+			}
+
+			state.type = _type;
+			state.channel = _channel;
+		} finally {
+		}
+	}
+
+	// $ANTLR end "T__40"
+
+	// $ANTLR start "T__41"
+	public final void mT__41() throws RecognitionException {
+		try {
+			int _type = T__41;
+			int _channel = DEFAULT_TOKEN_CHANNEL;
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:32:7: ( '?' )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:32:9: '?'
+			{
+				match('?');
+
+			}
+
+			state.type = _type;
+			state.channel = _channel;
+		} finally {
+		}
+	}
+
+	// $ANTLR end "T__41"
+
+	// $ANTLR start "T__42"
+	public final void mT__42() throws RecognitionException {
+		try {
+			int _type = T__42;
+			int _channel = DEFAULT_TOKEN_CHANNEL;
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:33:7: ( '[' )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:33:9: '['
+			{
+				match('[');
+
+			}
+
+			state.type = _type;
+			state.channel = _channel;
+		} finally {
+		}
+	}
+
+	// $ANTLR end "T__42"
+
+	// $ANTLR start "T__43"
+	public final void mT__43() throws RecognitionException {
+		try {
+			int _type = T__43;
+			int _channel = DEFAULT_TOKEN_CHANNEL;
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:34:7: ( ']' )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:34:9: ']'
+			{
+				match(']');
+
+			}
+
+			state.type = _type;
+			state.channel = _channel;
+		} finally {
+		}
+	}
+
+	// $ANTLR end "T__43"
+
+	// $ANTLR start "T__44"
+	public final void mT__44() throws RecognitionException {
+		try {
+			int _type = T__44;
+			int _channel = DEFAULT_TOKEN_CHANNEL;
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:35:7: ( '@' )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:35:9: '@'
+			{
+				match('@');
+
+			}
+
+			state.type = _type;
+			state.channel = _channel;
+		} finally {
+		}
+	}
+
+	// $ANTLR end "T__44"
+
+	// $ANTLR start "T__45"
+	public final void mT__45() throws RecognitionException {
+		try {
+			int _type = T__45;
+			int _channel = DEFAULT_TOKEN_CHANNEL;
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:36:7: ( '!' )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:36:9: '!'
+			{
+				match('!');
+
+			}
+
+			state.type = _type;
+			state.channel = _channel;
+		} finally {
+		}
+	}
+
+	// $ANTLR end "T__45"
+
+	// $ANTLR start "T__46"
+	public final void mT__46() throws RecognitionException {
+		try {
+			int _type = T__46;
+			int _channel = DEFAULT_TOKEN_CHANNEL;
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:37:7: ( '$' )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:37:9: '$'
+			{
+				match('$');
+
+			}
+
+			state.type = _type;
+			state.channel = _channel;
+		} finally {
+		}
+	}
+
+	// $ANTLR end "T__46"
+
+	// $ANTLR start "T__47"
+	public final void mT__47() throws RecognitionException {
+		try {
+			int _type = T__47;
+			int _channel = DEFAULT_TOKEN_CHANNEL;
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:38:7: ( '&' )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:38:9: '&'
+			{
+				match('&');
+
+			}
+
+			state.type = _type;
+			state.channel = _channel;
+		} finally {
+		}
+	}
+
+	// $ANTLR end "T__47"
+
+	// $ANTLR start "T__48"
+	public final void mT__48() throws RecognitionException {
+		try {
+			int _type = T__48;
+			int _channel = DEFAULT_TOKEN_CHANNEL;
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:39:7: ( ';' )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:39:9: ';'
+			{
+				match(';');
+
+			}
+
+			state.type = _type;
+			state.channel = _channel;
+		} finally {
+		}
+	}
+
+	// $ANTLR end "T__48"
+
+	// $ANTLR start "T__49"
+	public final void mT__49() throws RecognitionException {
+		try {
+			int _type = T__49;
+			int _channel = DEFAULT_TOKEN_CHANNEL;
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:40:7: ( 'not' )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:40:9: 'not'
+			{
+				match("not");
+
+
+			}
+
+			state.type = _type;
+			state.channel = _channel;
+		} finally {
+		}
+	}
+
+	// $ANTLR end "T__49"
+
+	// $ANTLR start "T__50"
+	public final void mT__50() throws RecognitionException {
+		try {
+			int _type = T__50;
+			int _channel = DEFAULT_TOKEN_CHANNEL;
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:41:7: ( 'no' )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:41:9: 'no'
+			{
+				match("no");
+
+
+			}
+
+			state.type = _type;
+			state.channel = _channel;
+		} finally {
+		}
+	}
+
+	// $ANTLR end "T__50"
+
+	// $ANTLR start "T__51"
+	public final void mT__51() throws RecognitionException {
+		try {
+			int _type = T__51;
+			int _channel = DEFAULT_TOKEN_CHANNEL;
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:42:7: ( 'url' )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:42:9: 'url'
+			{
+				match("url");
+
+
+			}
+
+			state.type = _type;
+			state.channel = _channel;
+		} finally {
+		}
+	}
+
+	// $ANTLR end "T__51"
+
+	// $ANTLR start "T__52"
+	public final void mT__52() throws RecognitionException {
+		try {
+			int _type = T__52;
+			int _channel = DEFAULT_TOKEN_CHANNEL;
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:43:7: ( 'ur' )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:43:9: 'ur'
+			{
+				match("ur");
+
+
+			}
+
+			state.type = _type;
+			state.channel = _channel;
+		} finally {
+		}
+	}
+
+	// $ANTLR end "T__52"
+
+	// $ANTLR start "T__53"
+	public final void mT__53() throws RecognitionException {
+		try {
+			int _type = T__53;
+			int _channel = DEFAULT_TOKEN_CHANNEL;
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:44:7: ( '\\\\ ' )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:44:9: '\\\\ '
+			{
+				match("\\ ");
+
+
+			}
+
+			state.type = _type;
+			state.channel = _channel;
+		} finally {
+		}
+	}
+
+	// $ANTLR end "T__53"
+
+	// $ANTLR start "T__54"
+	public final void mT__54() throws RecognitionException {
+		try {
+			int _type = T__54;
+			int _channel = DEFAULT_TOKEN_CHANNEL;
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:45:7: ( '\\\\(' )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:45:9: '\\\\('
+			{
+				match("\\(");
+
+
+			}
+
+			state.type = _type;
+			state.channel = _channel;
+		} finally {
+		}
+	}
+
+	// $ANTLR end "T__54"
+
+	// $ANTLR start "T__55"
+	public final void mT__55() throws RecognitionException {
+		try {
+			int _type = T__55;
+			int _channel = DEFAULT_TOKEN_CHANNEL;
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:46:7: ( '\\\\)' )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:46:9: '\\\\)'
+			{
+				match("\\)");
+
+
+			}
+
+			state.type = _type;
+			state.channel = _channel;
+		} finally {
+		}
+	}
+
+	// $ANTLR end "T__55"
+
+	// $ANTLR start "T__56"
+	public final void mT__56() throws RecognitionException {
+		try {
+			int _type = T__56;
+			int _channel = DEFAULT_TOKEN_CHANNEL;
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:47:7: ( '\\\\\\'' )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:47:9: '\\\\\\''
+			{
+				match("\\'");
+
+
+			}
+
+			state.type = _type;
+			state.channel = _channel;
+		} finally {
+		}
+	}
+
+	// $ANTLR end "T__56"
+
+	// $ANTLR start "T__57"
+	public final void mT__57() throws RecognitionException {
+		try {
+			int _type = T__57;
+			int _channel = DEFAULT_TOKEN_CHANNEL;
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:48:7: ( '\\\\\"' )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:48:9: '\\\\\"'
+			{
+				match("\\\"");
+
+
+			}
+
+			state.type = _type;
+			state.channel = _channel;
+		} finally {
+		}
+	}
+
+	// $ANTLR end "T__57"
+
+	// $ANTLR start "T__58"
+	public final void mT__58() throws RecognitionException {
+		try {
+			int _type = T__58;
+			int _channel = DEFAULT_TOKEN_CHANNEL;
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:49:7: ( '{' )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:49:9: '{'
+			{
+				match('{');
+
+			}
+
+			state.type = _type;
+			state.channel = _channel;
+		} finally {
+		}
+	}
+
+	// $ANTLR end "T__58"
+
+	// $ANTLR start "T__59"
+	public final void mT__59() throws RecognitionException {
+		try {
+			int _type = T__59;
+			int _channel = DEFAULT_TOKEN_CHANNEL;
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:50:7: ( '}' )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:50:9: '}'
+			{
+				match('}');
+
+			}
+
+			state.type = _type;
+			state.channel = _channel;
+		} finally {
+		}
+	}
+
+	// $ANTLR end "T__59"
+
+	// $ANTLR start "T__60"
+	public final void mT__60() throws RecognitionException {
+		try {
+			int _type = T__60;
+			int _channel = DEFAULT_TOKEN_CHANNEL;
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:51:7: ( '|' )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:51:9: '|'
+			{
+				match('|');
+
+			}
+
+			state.type = _type;
+			state.channel = _channel;
+		} finally {
+		}
+	}
+
+	// $ANTLR end "T__60"
+
+	// $ANTLR start "T__61"
+	public final void mT__61() throws RecognitionException {
+		try {
+			int _type = T__61;
+			int _channel = DEFAULT_TOKEN_CHANNEL;
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:52:7: ( ')' )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:52:9: ')'
+			{
+				match(')');
+
+			}
+
+			state.type = _type;
+			state.channel = _channel;
+		} finally {
+		}
+	}
+
+	// $ANTLR end "T__61"
+
+	// $ANTLR start "T__62"
+	public final void mT__62() throws RecognitionException {
+		try {
+			int _type = T__62;
+			int _channel = DEFAULT_TOKEN_CHANNEL;
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:53:7: ( '(' )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:53:9: '('
+			{
+				match('(');
+
+			}
+
+			state.type = _type;
+			state.channel = _channel;
+		} finally {
+		}
+	}
+
+	// $ANTLR end "T__62"
+
+	// $ANTLR start "T__63"
+	public final void mT__63() throws RecognitionException {
+		try {
+			int _type = T__63;
+			int _channel = DEFAULT_TOKEN_CHANNEL;
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:54:7: ( 'not(' )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:54:9: 'not('
+			{
+				match("not(");
+
+
+			}
+
+			state.type = _type;
+			state.channel = _channel;
+		} finally {
+		}
+	}
+
+	// $ANTLR end "T__63"
+
+	// $ANTLR start "T__64"
+	public final void mT__64() throws RecognitionException {
+		try {
+			int _type = T__64;
+			int _channel = DEFAULT_TOKEN_CHANNEL;
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:55:7: ( 'url(' )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:55:9: 'url('
+			{
+				match("url(");
+
+
+			}
+
+			state.type = _type;
+			state.channel = _channel;
+		} finally {
+		}
+	}
+
+	// $ANTLR end "T__64"
+
+	// $ANTLR start "RULE_IMPORTANT_SYM"
+	public final void mRULE_IMPORTANT_SYM() throws RecognitionException {
+		try {
+			int _type = RULE_IMPORTANT_SYM;
+			int _channel = DEFAULT_TOKEN_CHANNEL;
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8942:20: ( '!important' )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8942:22: '!important'
+			{
+				match("!important");
+
+
+			}
+
+			state.type = _type;
+			state.channel = _channel;
+		} finally {
+		}
+	}
+
+	// $ANTLR end "RULE_IMPORTANT_SYM"
+
+	// $ANTLR start "RULE_ONE_INT"
+	public final void mRULE_ONE_INT() throws RecognitionException {
+		try {
+			int _type = RULE_ONE_INT;
+			int _channel = DEFAULT_TOKEN_CHANNEL;
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8944:14: ( '0' .. '9' )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8944:16: '0' .. '9'
+			{
+				matchRange('0', '9');
+
+			}
+
+			state.type = _type;
+			state.channel = _channel;
+		} finally {
+		}
+	}
+
+	// $ANTLR end "RULE_ONE_INT"
+
+	// $ANTLR start "RULE_ONE_HEX_LETTER"
+	public final void mRULE_ONE_HEX_LETTER() throws RecognitionException {
+		try {
+			int _type = RULE_ONE_HEX_LETTER;
+			int _channel = DEFAULT_TOKEN_CHANNEL;
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8946:21: ( ( 'a' .. 'f' | 'A' .. 'F' ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8946:23: ( 'a' .. 'f' | 'A' .. 'F' )
+			{
+				if ((input.LA(1) >= 'A' && input.LA(1) <= 'F') || (input.LA(1) >= 'a' && input.LA(1) <= 'f')) {
+					input.consume();
+
+				}
+				else {
+					MismatchedSetException mse = new MismatchedSetException(null, input);
+					recover(mse);
+					throw mse;
+				}
+
+
+			}
+
+			state.type = _type;
+			state.channel = _channel;
+		} finally {
+		}
+	}
+
+	// $ANTLR end "RULE_ONE_HEX_LETTER"
+
+	// $ANTLR start "RULE_ONE_NON_HEX_LETTER"
+	public final void mRULE_ONE_NON_HEX_LETTER() throws RecognitionException {
+		try {
+			int _type = RULE_ONE_NON_HEX_LETTER;
+			int _channel = DEFAULT_TOKEN_CHANNEL;
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8948:25: ( ( 'g' .. 'z' | 'G' .. 'Z' ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8948:27: ( 'g' .. 'z' | 'G' .. 'Z' )
+			{
+				if ((input.LA(1) >= 'G' && input.LA(1) <= 'Z') || (input.LA(1) >= 'g' && input.LA(1) <= 'z')) {
+					input.consume();
+
+				}
+				else {
+					MismatchedSetException mse = new MismatchedSetException(null, input);
+					recover(mse);
+					throw mse;
+				}
+
+
+			}
+
+			state.type = _type;
+			state.channel = _channel;
+		} finally {
+		}
+	}
+
+	// $ANTLR end "RULE_ONE_NON_HEX_LETTER"
+
+	// $ANTLR start "RULE_UNDERSCORE"
+	public final void mRULE_UNDERSCORE() throws RecognitionException {
+		try {
+			int _type = RULE_UNDERSCORE;
+			int _channel = DEFAULT_TOKEN_CHANNEL;
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8950:17: ( '_' )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8950:19: '_'
+			{
+				match('_');
+
+			}
+
+			state.type = _type;
+			state.channel = _channel;
+		} finally {
+		}
+	}
+
+	// $ANTLR end "RULE_UNDERSCORE"
+
+	// $ANTLR start "RULE_DASH"
+	public final void mRULE_DASH() throws RecognitionException {
+		try {
+			int _type = RULE_DASH;
+			int _channel = DEFAULT_TOKEN_CHANNEL;
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8952:11: ( '-' )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8952:13: '-'
+			{
+				match('-');
+
+			}
+
+			state.type = _type;
+			state.channel = _channel;
+		} finally {
+		}
+	}
+
+	// $ANTLR end "RULE_DASH"
+
+	// $ANTLR start "RULE_PLUS"
+	public final void mRULE_PLUS() throws RecognitionException {
+		try {
+			int _type = RULE_PLUS;
+			int _channel = DEFAULT_TOKEN_CHANNEL;
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8954:11: ( '+' )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8954:13: '+'
+			{
+				match('+');
+
+			}
+
+			state.type = _type;
+			state.channel = _channel;
+		} finally {
+		}
+	}
+
+	// $ANTLR end "RULE_PLUS"
+
+	// $ANTLR start "RULE_HASHMARK"
+	public final void mRULE_HASHMARK() throws RecognitionException {
+		try {
+			int _type = RULE_HASHMARK;
+			int _channel = DEFAULT_TOKEN_CHANNEL;
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8956:15: ( '#' )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8956:17: '#'
+			{
+				match('#');
+
+			}
+
+			state.type = _type;
+			state.channel = _channel;
+		} finally {
+		}
+	}
+
+	// $ANTLR end "RULE_HASHMARK"
+
+	// $ANTLR start "RULE_COMMA"
+	public final void mRULE_COMMA() throws RecognitionException {
+		try {
+			int _type = RULE_COMMA;
+			int _channel = DEFAULT_TOKEN_CHANNEL;
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8958:12: ( ',' )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8958:14: ','
+			{
+				match(',');
+
+			}
+
+			state.type = _type;
+			state.channel = _channel;
+		} finally {
+		}
+	}
+
+	// $ANTLR end "RULE_COMMA"
+
+	// $ANTLR start "RULE_PERCENT"
+	public final void mRULE_PERCENT() throws RecognitionException {
+		try {
+			int _type = RULE_PERCENT;
+			int _channel = DEFAULT_TOKEN_CHANNEL;
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8960:14: ( '%' )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8960:16: '%'
+			{
+				match('%');
+
+			}
+
+			state.type = _type;
+			state.channel = _channel;
+		} finally {
+		}
+	}
+
+	// $ANTLR end "RULE_PERCENT"
+
+	// $ANTLR start "RULE_ML_COMMENT"
+	public final void mRULE_ML_COMMENT() throws RecognitionException {
+		try {
+			int _type = RULE_ML_COMMENT;
+			int _channel = DEFAULT_TOKEN_CHANNEL;
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8962:17: ( '/*' ( options {greedy=false; } : . )* '*/' )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8962:19: '/*' ( options {greedy=false; } : . )* '*/'
+			{
+				match("/*");
+
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8962:24: ( options {greedy=false; } : . )*
+				loop1: do {
+					int alt1 = 2;
+					int LA1_0 = input.LA(1);
+
+					if ((LA1_0 == '*')) {
+						int LA1_1 = input.LA(2);
+
+						if ((LA1_1 == '/')) {
+							alt1 = 2;
+						}
+						else if (((LA1_1 >= '\u0000' && LA1_1 <= '.') || (LA1_1 >= '0' && LA1_1 <= '\uFFFF'))) {
+							alt1 = 1;
+						}
+
+
+					}
+					else if (((LA1_0 >= '\u0000' && LA1_0 <= ')') || (LA1_0 >= '+' && LA1_0 <= '\uFFFF'))) {
+						alt1 = 1;
+					}
+
+
+					switch (alt1) {
+					case 1:
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8962:52: .
+					{
+						matchAny();
+
+					}
+						break;
+
+					default:
+						break loop1;
+					}
+				} while (true);
+
+				match("*/");
+
+
+			}
+
+			state.type = _type;
+			state.channel = _channel;
+		} finally {
+		}
+	}
+
+	// $ANTLR end "RULE_ML_COMMENT"
+
+	// $ANTLR start "RULE_WS"
+	public final void mRULE_WS() throws RecognitionException {
+		try {
+			int _type = RULE_WS;
+			int _channel = DEFAULT_TOKEN_CHANNEL;
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8964:9: ( ( ' ' | '\\t' | '\\r' | '\\n' )+ )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8964:11: ( ' ' | '\\t' | '\\r' | '\\n' )+
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8964:11: ( ' ' | '\\t' | '\\r' | '\\n' )+
+				int cnt2 = 0;
+				loop2: do {
+					int alt2 = 2;
+					int LA2_0 = input.LA(1);
+
+					if (((LA2_0 >= '\t' && LA2_0 <= '\n') || LA2_0 == '\r' || LA2_0 == ' ')) {
+						alt2 = 1;
+					}
+
+
+					switch (alt2) {
+					case 1:
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:
+					{
+						if ((input.LA(1) >= '\t' && input.LA(1) <= '\n') || input.LA(1) == '\r' || input.LA(1) == ' ') {
+							input.consume();
+
+						}
+						else {
+							MismatchedSetException mse = new MismatchedSetException(null, input);
+							recover(mse);
+							throw mse;
+						}
+
+
+					}
+						break;
+
+					default:
+						if (cnt2 >= 1) {
+							break loop2;
+						}
+						EarlyExitException eee =
+								new EarlyExitException(2, input);
+						throw eee;
+					}
+					cnt2++;
+				} while (true);
+
+
+			}
+
+			state.type = _type;
+			state.channel = _channel;
+		} finally {
+		}
+	}
+
+	// $ANTLR end "RULE_WS"
+
+	// $ANTLR start "RULE_CSSSTRING"
+	public final void mRULE_CSSSTRING() throws RecognitionException {
+		try {
+			int _type = RULE_CSSSTRING;
+			int _channel = DEFAULT_TOKEN_CHANNEL;
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8966:16: ( ( '\"' ( '\\\\' ( 'b' | 't' | 'n' | 'f' | 'r' | 'u' | '\"' | '\\'' | '0' .. '9' | 'a' ..
+			// 'f' | 'A' .. 'F' | '\\\\' ) | ~ ( ( '\\\\' | '\"' ) ) )* '\"' | '\\'' ( '\\\\' ( 'b' | 't' | 'n' | 'f' | 'r' | 'u' | '\"' | '\\'' | '0' .. '9' | 'a' .. 'f' | 'A' .. 'F' | '\\\\' ) | ~ ( ( '\\\\' | '\\'' ) ) )* '\\'' ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8966:18: ( '\"' ( '\\\\' ( 'b' | 't' | 'n' | 'f' | 'r' | 'u' | '\"' | '\\'' | '0' .. '9' | 'a' .. 'f'
+			// | 'A' .. 'F' | '\\\\' ) | ~ ( ( '\\\\' | '\"' ) ) )* '\"' | '\\'' ( '\\\\' ( 'b' | 't' | 'n' | 'f' | 'r' | 'u' | '\"' | '\\'' | '0' .. '9' | 'a' .. 'f' | 'A' .. 'F' | '\\\\' ) | ~ ( ( '\\\\' | '\\'' ) ) )* '\\'' )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8966:18: ( '\"' ( '\\\\' ( 'b' | 't' | 'n' | 'f' | 'r' | 'u' | '\"' | '\\'' | '0' .. '9' | 'a' ..
+				// 'f' | 'A' .. 'F' | '\\\\' ) | ~ ( ( '\\\\' | '\"' ) ) )* '\"' | '\\'' ( '\\\\' ( 'b' | 't' | 'n' | 'f' | 'r' | 'u' | '\"' | '\\'' | '0' .. '9' | 'a' .. 'f' | 'A' .. 'F' | '\\\\' ) | ~ ( ( '\\\\' | '\\'' ) ) )* '\\'' )
+				int alt5 = 2;
+				int LA5_0 = input.LA(1);
+
+				if ((LA5_0 == '\"')) {
+					alt5 = 1;
+				}
+				else if ((LA5_0 == '\'')) {
+					alt5 = 2;
+				}
+				else {
+					NoViableAltException nvae =
+							new NoViableAltException("", 5, 0, input);
+
+					throw nvae;
+				}
+				switch (alt5) {
+				case 1:
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8966:19: '\"' ( '\\\\' ( 'b' | 't' | 'n' | 'f' | 'r' | 'u' | '\"' | '\\'' | '0' .. '9' | 'a' ..
+				// 'f' | 'A' .. 'F' | '\\\\' ) | ~ ( ( '\\\\' | '\"' ) ) )* '\"'
+				{
+					match('\"');
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8966:23: ( '\\\\' ( 'b' | 't' | 'n' | 'f' | 'r' | 'u' | '\"' | '\\'' | '0' .. '9' | 'a' ..
+					// 'f' | 'A' .. 'F' | '\\\\' ) | ~ ( ( '\\\\' | '\"' ) ) )*
+					loop3: do {
+						int alt3 = 3;
+						int LA3_0 = input.LA(1);
+
+						if ((LA3_0 == '\\')) {
+							alt3 = 1;
+						}
+						else if (((LA3_0 >= '\u0000' && LA3_0 <= '!') || (LA3_0 >= '#' && LA3_0 <= '[') || (LA3_0 >= ']' && LA3_0 <= '\uFFFF'))) {
+							alt3 = 2;
+						}
+
+
+						switch (alt3) {
+						case 1:
+						// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8966:24: '\\\\' ( 'b' | 't' | 'n' | 'f' | 'r' | 'u' | '\"' | '\\'' | '0' .. '9' | 'a' ..
+						// 'f' | 'A' .. 'F' | '\\\\' )
+						{
+							match('\\');
+							if (input.LA(1) == '\"' || input.LA(1) == '\'' || (input.LA(1) >= '0' && input.LA(1) <= '9') || (input.LA(1) >= 'A' && input.LA(1) <= 'F') || input.LA(1) == '\\' || (input.LA(1) >= 'a' && input.LA(1) <= 'f') || input.LA(1) == 'n'
+									|| input.LA(1) == 'r' || (input.LA(1) >= 't' && input.LA(1) <= 'u')) {
+								input.consume();
+
+							}
+							else {
+								MismatchedSetException mse = new MismatchedSetException(null, input);
+								recover(mse);
+								throw mse;
+							}
+
+
+						}
+							break;
+						case 2:
+						// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8966:96: ~ ( ( '\\\\' | '\"' ) )
+						{
+							if ((input.LA(1) >= '\u0000' && input.LA(1) <= '!') || (input.LA(1) >= '#' && input.LA(1) <= '[') || (input.LA(1) >= ']' && input.LA(1) <= '\uFFFF')) {
+								input.consume();
+
+							}
+							else {
+								MismatchedSetException mse = new MismatchedSetException(null, input);
+								recover(mse);
+								throw mse;
+							}
+
+
+						}
+							break;
+
+						default:
+							break loop3;
+						}
+					} while (true);
+
+					match('\"');
+
+				}
+					break;
+				case 2:
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8966:116: '\\'' ( '\\\\' ( 'b' | 't' | 'n' | 'f' | 'r' | 'u' | '\"' | '\\'' | '0' .. '9' | 'a' ..
+				// 'f' | 'A' .. 'F' | '\\\\' ) | ~ ( ( '\\\\' | '\\'' ) ) )* '\\''
+				{
+					match('\'');
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8966:121: ( '\\\\' ( 'b' | 't' | 'n' | 'f' | 'r' | 'u' | '\"' | '\\'' | '0' .. '9' | 'a' ..
+					// 'f' | 'A' .. 'F' | '\\\\' ) | ~ ( ( '\\\\' | '\\'' ) ) )*
+					loop4: do {
+						int alt4 = 3;
+						int LA4_0 = input.LA(1);
+
+						if ((LA4_0 == '\\')) {
+							alt4 = 1;
+						}
+						else if (((LA4_0 >= '\u0000' && LA4_0 <= '&') || (LA4_0 >= '(' && LA4_0 <= '[') || (LA4_0 >= ']' && LA4_0 <= '\uFFFF'))) {
+							alt4 = 2;
+						}
+
+
+						switch (alt4) {
+						case 1:
+						// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8966:122: '\\\\' ( 'b' | 't' | 'n' | 'f' | 'r' | 'u' | '\"' | '\\'' | '0' .. '9' | 'a' ..
+						// 'f' | 'A' .. 'F' | '\\\\' )
+						{
+							match('\\');
+							if (input.LA(1) == '\"' || input.LA(1) == '\'' || (input.LA(1) >= '0' && input.LA(1) <= '9') || (input.LA(1) >= 'A' && input.LA(1) <= 'F') || input.LA(1) == '\\' || (input.LA(1) >= 'a' && input.LA(1) <= 'f') || input.LA(1) == 'n'
+									|| input.LA(1) == 'r' || (input.LA(1) >= 't' && input.LA(1) <= 'u')) {
+								input.consume();
+
+							}
+							else {
+								MismatchedSetException mse = new MismatchedSetException(null, input);
+								recover(mse);
+								throw mse;
+							}
+
+
+						}
+							break;
+						case 2:
+						// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8966:194: ~ ( ( '\\\\' | '\\'' ) )
+						{
+							if ((input.LA(1) >= '\u0000' && input.LA(1) <= '&') || (input.LA(1) >= '(' && input.LA(1) <= '[') || (input.LA(1) >= ']' && input.LA(1) <= '\uFFFF')) {
+								input.consume();
+
+							}
+							else {
+								MismatchedSetException mse = new MismatchedSetException(null, input);
+								recover(mse);
+								throw mse;
+							}
+
+
+						}
+							break;
+
+						default:
+							break loop4;
+						}
+					} while (true);
+
+					match('\'');
+
+				}
+					break;
+
+				}
+
+
+			}
+
+			state.type = _type;
+			state.channel = _channel;
+		} finally {
+		}
+	}
+
+	// $ANTLR end "RULE_CSSSTRING"
+
+	// $ANTLR start "RULE_INCLUDES"
+	public final void mRULE_INCLUDES() throws RecognitionException {
+		try {
+			int _type = RULE_INCLUDES;
+			int _channel = DEFAULT_TOKEN_CHANNEL;
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8968:15: ( '~=' )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8968:17: '~='
+			{
+				match("~=");
+
+
+			}
+
+			state.type = _type;
+			state.channel = _channel;
+		} finally {
+		}
+	}
+
+	// $ANTLR end "RULE_INCLUDES"
+
+	// $ANTLR start "RULE_DASHMATCH"
+	public final void mRULE_DASHMATCH() throws RecognitionException {
+		try {
+			int _type = RULE_DASHMATCH;
+			int _channel = DEFAULT_TOKEN_CHANNEL;
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8970:16: ( '|=' )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8970:18: '|='
+			{
+				match("|=");
+
+
+			}
+
+			state.type = _type;
+			state.channel = _channel;
+		} finally {
+		}
+	}
+
+	// $ANTLR end "RULE_DASHMATCH"
+
+	// $ANTLR start "RULE_COLON"
+	public final void mRULE_COLON() throws RecognitionException {
+		try {
+			int _type = RULE_COLON;
+			int _channel = DEFAULT_TOKEN_CHANNEL;
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8972:12: ( ':' )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8972:14: ':'
+			{
+				match(':');
+
+			}
+
+			state.type = _type;
+			state.channel = _channel;
+		} finally {
+		}
+	}
+
+	// $ANTLR end "RULE_COLON"
+
+	@Override
+	public void mTokens() throws RecognitionException {
+		// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1:8: ( T__20 | T__21 | T__22 | T__23 | T__24 | T__25 | T__26 | T__27 | T__28 | T__29 | T__30 | T__31 |
+		// T__32 | T__33 | T__34 | T__35 | T__36 | T__37 | T__38 | T__39 | T__40 | T__41 | T__42 | T__43 | T__44 | T__45 | T__46 | T__47 | T__48 | T__49 | T__50 | T__51 | T__52 | T__53 | T__54 | T__55 | T__56 | T__57 | T__58 | T__59 | T__60 | T__61 | T__62 |
+		// T__63 | T__64 | RULE_IMPORTANT_SYM | RULE_ONE_INT | RULE_ONE_HEX_LETTER | RULE_ONE_NON_HEX_LETTER | RULE_UNDERSCORE | RULE_DASH | RULE_PLUS | RULE_HASHMARK | RULE_COMMA | RULE_PERCENT | RULE_ML_COMMENT | RULE_WS | RULE_CSSSTRING | RULE_INCLUDES |
+		// RULE_DASHMATCH | RULE_COLON )
+		int alt6 = 61;
+		alt6 = dfa6.predict(input);
+		switch (alt6) {
+		case 1:
+		// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1:10: T__20
+		{
+			mT__20();
+
+		}
+			break;
+		case 2:
+		// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1:16: T__21
+		{
+			mT__21();
+
+		}
+			break;
+		case 3:
+		// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1:22: T__22
+		{
+			mT__22();
+
+		}
+			break;
+		case 4:
+		// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1:28: T__23
+		{
+			mT__23();
+
+		}
+			break;
+		case 5:
+		// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1:34: T__24
+		{
+			mT__24();
+
+		}
+			break;
+		case 6:
+		// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1:40: T__25
+		{
+			mT__25();
+
+		}
+			break;
+		case 7:
+		// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1:46: T__26
+		{
+			mT__26();
+
+		}
+			break;
+		case 8:
+		// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1:52: T__27
+		{
+			mT__27();
+
+		}
+			break;
+		case 9:
+		// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1:58: T__28
+		{
+			mT__28();
+
+		}
+			break;
+		case 10:
+		// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1:64: T__29
+		{
+			mT__29();
+
+		}
+			break;
+		case 11:
+		// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1:70: T__30
+		{
+			mT__30();
+
+		}
+			break;
+		case 12:
+		// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1:76: T__31
+		{
+			mT__31();
+
+		}
+			break;
+		case 13:
+		// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1:82: T__32
+		{
+			mT__32();
+
+		}
+			break;
+		case 14:
+		// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1:88: T__33
+		{
+			mT__33();
+
+		}
+			break;
+		case 15:
+		// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1:94: T__34
+		{
+			mT__34();
+
+		}
+			break;
+		case 16:
+		// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1:100: T__35
+		{
+			mT__35();
+
+		}
+			break;
+		case 17:
+		// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1:106: T__36
+		{
+			mT__36();
+
+		}
+			break;
+		case 18:
+		// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1:112: T__37
+		{
+			mT__37();
+
+		}
+			break;
+		case 19:
+		// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1:118: T__38
+		{
+			mT__38();
+
+		}
+			break;
+		case 20:
+		// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1:124: T__39
+		{
+			mT__39();
+
+		}
+			break;
+		case 21:
+		// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1:130: T__40
+		{
+			mT__40();
+
+		}
+			break;
+		case 22:
+		// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1:136: T__41
+		{
+			mT__41();
+
+		}
+			break;
+		case 23:
+		// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1:142: T__42
+		{
+			mT__42();
+
+		}
+			break;
+		case 24:
+		// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1:148: T__43
+		{
+			mT__43();
+
+		}
+			break;
+		case 25:
+		// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1:154: T__44
+		{
+			mT__44();
+
+		}
+			break;
+		case 26:
+		// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1:160: T__45
+		{
+			mT__45();
+
+		}
+			break;
+		case 27:
+		// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1:166: T__46
+		{
+			mT__46();
+
+		}
+			break;
+		case 28:
+		// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1:172: T__47
+		{
+			mT__47();
+
+		}
+			break;
+		case 29:
+		// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1:178: T__48
+		{
+			mT__48();
+
+		}
+			break;
+		case 30:
+		// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1:184: T__49
+		{
+			mT__49();
+
+		}
+			break;
+		case 31:
+		// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1:190: T__50
+		{
+			mT__50();
+
+		}
+			break;
+		case 32:
+		// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1:196: T__51
+		{
+			mT__51();
+
+		}
+			break;
+		case 33:
+		// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1:202: T__52
+		{
+			mT__52();
+
+		}
+			break;
+		case 34:
+		// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1:208: T__53
+		{
+			mT__53();
+
+		}
+			break;
+		case 35:
+		// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1:214: T__54
+		{
+			mT__54();
+
+		}
+			break;
+		case 36:
+		// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1:220: T__55
+		{
+			mT__55();
+
+		}
+			break;
+		case 37:
+		// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1:226: T__56
+		{
+			mT__56();
+
+		}
+			break;
+		case 38:
+		// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1:232: T__57
+		{
+			mT__57();
+
+		}
+			break;
+		case 39:
+		// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1:238: T__58
+		{
+			mT__58();
+
+		}
+			break;
+		case 40:
+		// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1:244: T__59
+		{
+			mT__59();
+
+		}
+			break;
+		case 41:
+		// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1:250: T__60
+		{
+			mT__60();
+
+		}
+			break;
+		case 42:
+		// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1:256: T__61
+		{
+			mT__61();
+
+		}
+			break;
+		case 43:
+		// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1:262: T__62
+		{
+			mT__62();
+
+		}
+			break;
+		case 44:
+		// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1:268: T__63
+		{
+			mT__63();
+
+		}
+			break;
+		case 45:
+		// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1:274: T__64
+		{
+			mT__64();
+
+		}
+			break;
+		case 46:
+		// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1:280: RULE_IMPORTANT_SYM
+		{
+			mRULE_IMPORTANT_SYM();
+
+		}
+			break;
+		case 47:
+		// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1:299: RULE_ONE_INT
+		{
+			mRULE_ONE_INT();
+
+		}
+			break;
+		case 48:
+		// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1:312: RULE_ONE_HEX_LETTER
+		{
+			mRULE_ONE_HEX_LETTER();
+
+		}
+			break;
+		case 49:
+		// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1:332: RULE_ONE_NON_HEX_LETTER
+		{
+			mRULE_ONE_NON_HEX_LETTER();
+
+		}
+			break;
+		case 50:
+		// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1:356: RULE_UNDERSCORE
+		{
+			mRULE_UNDERSCORE();
+
+		}
+			break;
+		case 51:
+		// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1:372: RULE_DASH
+		{
+			mRULE_DASH();
+
+		}
+			break;
+		case 52:
+		// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1:382: RULE_PLUS
+		{
+			mRULE_PLUS();
+
+		}
+			break;
+		case 53:
+		// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1:392: RULE_HASHMARK
+		{
+			mRULE_HASHMARK();
+
+		}
+			break;
+		case 54:
+		// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1:406: RULE_COMMA
+		{
+			mRULE_COMMA();
+
+		}
+			break;
+		case 55:
+		// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1:417: RULE_PERCENT
+		{
+			mRULE_PERCENT();
+
+		}
+			break;
+		case 56:
+		// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1:430: RULE_ML_COMMENT
+		{
+			mRULE_ML_COMMENT();
+
+		}
+			break;
+		case 57:
+		// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1:446: RULE_WS
+		{
+			mRULE_WS();
+
+		}
+			break;
+		case 58:
+		// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1:454: RULE_CSSSTRING
+		{
+			mRULE_CSSSTRING();
+
+		}
+			break;
+		case 59:
+		// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1:469: RULE_INCLUDES
+		{
+			mRULE_INCLUDES();
+
+		}
+			break;
+		case 60:
+		// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1:483: RULE_DASHMATCH
+		{
+			mRULE_DASHMATCH();
+
+		}
+			break;
+		case 61:
+		// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1:498: RULE_COLON
+		{
+			mRULE_COLON();
+
+		}
+			break;
+
+		}
+
+	}
+
+
+	protected DFA6 dfa6 = new DFA6(this);
+	static final String DFA6_eotS =
+			"\1\uffff\1\60\1\uffff\1\62\1\64\2\uffff\1\66\1\uffff\1\70\3\uffff" +
+					"\1\72\2\uffff\2\32\3\uffff\1\103\45\uffff\1\105\1\107\7\uffff\1" +
+					"\111\1\uffff\1\113\5\uffff";
+	static final String DFA6_eofS =
+			"\114\uffff";
+	static final String DFA6_minS =
+			"\1\11\1\103\1\uffff\2\75\2\uffff\1\75\1\uffff\1\52\3\uffff\1\151" +
+					"\2\uffff\1\157\1\162\1\40\2\uffff\1\75\45\uffff\1\164\1\154\7\uffff" +
+					"\1\50\1\uffff\1\50\5\uffff";
+	static final String DFA6_maxS =
+			"\1\176\1\160\1\uffff\2\75\2\uffff\1\75\1\uffff\1\52\3\uffff\1\151" +
+					"\2\uffff\1\157\1\162\1\51\2\uffff\1\75\45\uffff\1\164\1\154\7\uffff" +
+					"\1\50\1\uffff\1\50\5\uffff";
+	static final String DFA6_acceptS =
+			"\2\uffff\1\15\2\uffff\1\20\1\22\1\uffff\1\24\1\uffff\1\26\1\27" +
+					"\1\30\1\uffff\1\34\1\35\3\uffff\1\47\1\50\1\uffff\1\52\1\53\1\57" +
+					"\1\60\1\61\1\62\1\63\1\64\1\65\1\66\1\67\1\71\1\72\1\75\1\1\1\2" +
+					"\1\3\1\4\1\5\1\6\1\7\1\10\1\11\1\12\1\13\1\14\1\31\1\16\1\33\1\17" +
+					"\1\21\1\73\1\23\1\70\1\25\1\56\1\32\2\uffff\1\42\1\43\1\44\1\45" +
+					"\1\46\1\74\1\51\1\uffff\1\37\1\uffff\1\41\1\54\1\36\1\55\1\40";
+	static final String DFA6_specialS =
+			"\114\uffff}>";
+	static final String[] DFA6_transitionS = {
+			"\2\41\2\uffff\1\41\22\uffff\1\41\1\15\1\42\1\36\1\3\1\40\1" +
+					"\16\1\42\1\27\1\26\1\4\1\35\1\37\1\34\1\10\1\11\12\30\1\43\1" +
+					"\17\1\uffff\1\5\1\6\1\12\1\1\6\31\24\32\1\13\1\22\1\14\1\2\1" +
+					"\33\1\uffff\6\31\7\32\1\20\6\32\1\21\5\32\1\23\1\25\1\24\1\7",
+			"\1\45\2\uffff\1\55\2\uffff\1\47\1\uffff\1\57\1\uffff\1\53" +
+					"\2\uffff\1\51\22\uffff\1\44\2\uffff\1\54\2\uffff\1\46\1\uffff" +
+					"\1\56\1\uffff\1\52\2\uffff\1\50",
+			"",
+			"\1\61",
+			"\1\63",
+			"",
+			"",
+			"\1\65",
+			"",
+			"\1\67",
+			"",
+			"",
+			"",
+			"\1\71",
+			"",
+			"",
+			"\1\73",
+			"\1\74",
+			"\1\75\1\uffff\1\101\4\uffff\1\100\1\76\1\77",
+			"",
+			"",
+			"\1\102",
+			"",
+			"",
+			"",
+			"",
+			"",
+			"",
+			"",
+			"",
+			"",
+			"",
+			"",
+			"",
+			"",
+			"",
+			"",
+			"",
+			"",
+			"",
+			"",
+			"",
+			"",
+			"",
+			"",
+			"",
+			"",
+			"",
+			"",
+			"",
+			"",
+			"",
+			"",
+			"",
+			"",
+			"",
+			"",
+			"",
+			"",
+			"\1\104",
+			"\1\106",
+			"",
+			"",
+			"",
+			"",
+			"",
+			"",
+			"",
+			"\1\110",
+			"",
+			"\1\112",
+			"",
+			"",
+			"",
+			"",
+			""
+	};
+
+	static final short[] DFA6_eot = DFA.unpackEncodedString(DFA6_eotS);
+	static final short[] DFA6_eof = DFA.unpackEncodedString(DFA6_eofS);
+	static final char[] DFA6_min = DFA.unpackEncodedStringToUnsignedChars(DFA6_minS);
+	static final char[] DFA6_max = DFA.unpackEncodedStringToUnsignedChars(DFA6_maxS);
+	static final short[] DFA6_accept = DFA.unpackEncodedString(DFA6_acceptS);
+	static final short[] DFA6_special = DFA.unpackEncodedString(DFA6_specialS);
+	static final short[][] DFA6_transition;
+
+	static {
+		int numStates = DFA6_transitionS.length;
+		DFA6_transition = new short[numStates][];
+		for (int i = 0; i < numStates; i++) {
+			DFA6_transition[i] = DFA.unpackEncodedString(DFA6_transitionS[i]);
+		}
+	}
+
+	class DFA6 extends DFA {
+
+		public DFA6(BaseRecognizer recognizer) {
+			this.recognizer = recognizer;
+			this.decisionNumber = 6;
+			this.eot = DFA6_eot;
+			this.eof = DFA6_eof;
+			this.min = DFA6_min;
+			this.max = DFA6_max;
+			this.accept = DFA6_accept;
+			this.special = DFA6_special;
+			this.transition = DFA6_transition;
+		}
+
+		@Override
+		public String getDescription() {
+			return "1:1: Tokens : ( T__20 | T__21 | T__22 | T__23 | T__24 | T__25 | T__26 | T__27 | T__28 | T__29 | T__30 | T__31 | T__32 | T__33 | T__34 | T__35 | T__36 | T__37 | T__38 | T__39 | T__40 | T__41 | T__42 | T__43 | T__44 | T__45 | T__46 | T__47 | T__48 | T__49 | T__50 | T__51 | T__52 | T__53 | T__54 | T__55 | T__56 | T__57 | T__58 | T__59 | T__60 | T__61 | T__62 | T__63 | T__64 | RULE_IMPORTANT_SYM | RULE_ONE_INT | RULE_ONE_HEX_LETTER | RULE_ONE_NON_HEX_LETTER | RULE_UNDERSCORE | RULE_DASH | RULE_PLUS | RULE_HASHMARK | RULE_COMMA | RULE_PERCENT | RULE_ML_COMMENT | RULE_WS | RULE_CSSSTRING | RULE_INCLUDES | RULE_DASHMATCH | RULE_COLON );";
+		}
+	}
+
+
+}
+\ No newline at end of file
diff --git a/plugins/infra/gmfdiag/css/org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSSParser.java b/plugins/infra/gmfdiag/css/org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSSParser.java
new file mode 100644
index 00000000000..41fb15f7c12
--- /dev/null
+++ b/plugins/infra/gmfdiag/css/org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSSParser.java
@@ -0,0 +1,29629 @@
+package org.eclipse.papyrus.infra.gmfdiag.css3.ui.contentassist.antlr.internal;
+
+import org.eclipse.xtext.*;
+import org.eclipse.xtext.parser.antlr.XtextTokenStream;
+import org.eclipse.xtext.parser.antlr.XtextTokenStream.HiddenTokens;
+import org.eclipse.xtext.ui.editor.contentassist.antlr.internal.AbstractInternalContentAssistParser;
+import org.eclipse.xtext.ui.editor.contentassist.antlr.internal.DFA;
+import org.eclipse.papyrus.infra.gmfdiag.css3.services.CSSGrammarAccess;
+
+import org.antlr.runtime.*;
+
+@SuppressWarnings("all")
+public class InternalCSSParser extends AbstractInternalContentAssistParser {
+	public static final String[] tokenNames = new String[] {
+			"<invalid>", "<EOR>", "<DOWN>", "<UP>", "RULE_INCLUDES", "RULE_DASHMATCH", "RULE_CSSSTRING", "RULE_PLUS", "RULE_COMMA", "RULE_PERCENT", "RULE_DASH", "RULE_UNDERSCORE", "RULE_COLON", "RULE_HASHMARK", "RULE_ONE_HEX_LETTER",
+			"RULE_ONE_NON_HEX_LETTER", "RULE_ONE_INT", "RULE_WS", "RULE_IMPORTANT_SYM", "RULE_ML_COMMENT", "'@charset'", "'@CHARSET'", "'@import'", "'@IMPORT'", "'@page'", "'@PAGE'", "'@media'", "'@MEDIA'", "'@font-face'", "'@FONT-FACE'", "'@keyframes'",
+			"'@KEYFRAMES'", "'^='", "'$='", "'*='", "'='", "'*'", "'>'", "'~'", "'.'", "'/'", "'?'", "'['", "']'", "'@'", "'!'", "'$'", "'&'", "';'", "'not'", "'no'", "'url'", "'ur'", "'\\\\ '", "'\\\\('", "'\\\\)'", "'\\\\\\''", "'\\\\\"'", "'{'", "'}'",
+			"'|'", "')'", "'('", "'not('", "'url('"
+	};
+	public static final int T__64 = 64;
+	public static final int T__29 = 29;
+	public static final int T__28 = 28;
+	public static final int T__62 = 62;
+	public static final int T__27 = 27;
+	public static final int T__63 = 63;
+	public static final int T__26 = 26;
+	public static final int T__25 = 25;
+	public static final int T__24 = 24;
+	public static final int RULE_INCLUDES = 4;
+	public static final int T__23 = 23;
+	public static final int T__22 = 22;
+	public static final int T__21 = 21;
+	public static final int T__20 = 20;
+	public static final int RULE_ONE_INT = 16;
+	public static final int RULE_PERCENT = 9;
+	public static final int T__61 = 61;
+	public static final int T__60 = 60;
+	public static final int EOF = -1;
+	public static final int T__55 = 55;
+	public static final int T__56 = 56;
+	public static final int T__57 = 57;
+	public static final int T__58 = 58;
+	public static final int T__51 = 51;
+	public static final int T__52 = 52;
+	public static final int T__53 = 53;
+	public static final int T__54 = 54;
+	public static final int RULE_ONE_NON_HEX_LETTER = 15;
+	public static final int T__59 = 59;
+	public static final int T__50 = 50;
+	public static final int T__42 = 42;
+	public static final int T__43 = 43;
+	public static final int T__40 = 40;
+	public static final int T__41 = 41;
+	public static final int T__46 = 46;
+	public static final int T__47 = 47;
+	public static final int T__44 = 44;
+	public static final int T__45 = 45;
+	public static final int T__48 = 48;
+	public static final int T__49 = 49;
+	public static final int RULE_UNDERSCORE = 11;
+	public static final int RULE_PLUS = 7;
+	public static final int RULE_ONE_HEX_LETTER = 14;
+	public static final int RULE_COMMA = 8;
+	public static final int RULE_HASHMARK = 13;
+	public static final int RULE_ML_COMMENT = 19;
+	public static final int RULE_DASHMATCH = 5;
+	public static final int T__30 = 30;
+	public static final int RULE_COLON = 12;
+	public static final int T__31 = 31;
+	public static final int T__32 = 32;
+	public static final int T__33 = 33;
+	public static final int T__34 = 34;
+	public static final int T__35 = 35;
+	public static final int T__36 = 36;
+	public static final int T__37 = 37;
+	public static final int T__38 = 38;
+	public static final int T__39 = 39;
+	public static final int RULE_CSSSTRING = 6;
+	public static final int RULE_IMPORTANT_SYM = 18;
+	public static final int RULE_WS = 17;
+	public static final int RULE_DASH = 10;
+
+	// delegates
+	// delegators
+
+
+	public InternalCSSParser(TokenStream input) {
+		this(input, new RecognizerSharedState());
+	}
+
+	public InternalCSSParser(TokenStream input, RecognizerSharedState state) {
+		super(input, state);
+
+	}
+
+
+	@Override
+	public String[] getTokenNames() {
+		return InternalCSSParser.tokenNames;
+	}
+
+	@Override
+	public String getGrammarFileName() {
+		return "../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g";
+	}
+
+
+
+	private CSSGrammarAccess grammarAccess;
+
+	public void setGrammarAccess(CSSGrammarAccess grammarAccess) {
+		this.grammarAccess = grammarAccess;
+	}
+
+	@Override
+	protected Grammar getGrammar() {
+		return grammarAccess.getGrammar();
+	}
+
+	@Override
+	protected String getValueForTokenName(String tokenName) {
+		return tokenName;
+	}
+
+
+
+
+	// $ANTLR start "entryRulestylesheet"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:61:1: entryRulestylesheet : rulestylesheet EOF ;
+	public final void entryRulestylesheet() throws RecognitionException {
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:62:1: ( rulestylesheet EOF )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:63:1: rulestylesheet EOF
+			{
+				if (state.backtracking == 0) {
+					before(grammarAccess.getStylesheetRule());
+				}
+				pushFollow(FOLLOW_rulestylesheet_in_entryRulestylesheet67);
+				rulestylesheet();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				if (state.backtracking == 0) {
+					after(grammarAccess.getStylesheetRule());
+				}
+				match(input, EOF, FOLLOW_EOF_in_entryRulestylesheet74);
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+		}
+		return;
+	}
+
+	// $ANTLR end "entryRulestylesheet"
+
+
+	// $ANTLR start "rulestylesheet"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:70:1: rulestylesheet : ( ( rule__Stylesheet__Group__0 ) ) ;
+	public final void rulestylesheet() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:74:2: ( ( ( rule__Stylesheet__Group__0 ) ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:75:1: ( ( rule__Stylesheet__Group__0 ) )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:75:1: ( ( rule__Stylesheet__Group__0 ) )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:76:1: ( rule__Stylesheet__Group__0 )
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getStylesheetAccess().getGroup());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:77:1: ( rule__Stylesheet__Group__0 )
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:77:2: rule__Stylesheet__Group__0
+					{
+						pushFollow(FOLLOW_rule__Stylesheet__Group__0_in_rulestylesheet100);
+						rule__Stylesheet__Group__0();
+
+						state._fsp--;
+						if (state.failed) {
+							return;
+						}
+
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getStylesheetAccess().getGroup());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rulestylesheet"
+
+
+	// $ANTLR start "entryRulecharset"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:89:1: entryRulecharset : rulecharset EOF ;
+	public final void entryRulecharset() throws RecognitionException {
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:90:1: ( rulecharset EOF )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:91:1: rulecharset EOF
+			{
+				if (state.backtracking == 0) {
+					before(grammarAccess.getCharsetRule());
+				}
+				pushFollow(FOLLOW_rulecharset_in_entryRulecharset127);
+				rulecharset();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				if (state.backtracking == 0) {
+					after(grammarAccess.getCharsetRule());
+				}
+				match(input, EOF, FOLLOW_EOF_in_entryRulecharset134);
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+		}
+		return;
+	}
+
+	// $ANTLR end "entryRulecharset"
+
+
+	// $ANTLR start "rulecharset"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:98:1: rulecharset : ( ( rule__Charset__Group__0 ) ) ;
+	public final void rulecharset() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:102:2: ( ( ( rule__Charset__Group__0 ) ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:103:1: ( ( rule__Charset__Group__0 ) )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:103:1: ( ( rule__Charset__Group__0 ) )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:104:1: ( rule__Charset__Group__0 )
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getCharsetAccess().getGroup());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:105:1: ( rule__Charset__Group__0 )
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:105:2: rule__Charset__Group__0
+					{
+						pushFollow(FOLLOW_rule__Charset__Group__0_in_rulecharset160);
+						rule__Charset__Group__0();
+
+						state._fsp--;
+						if (state.failed) {
+							return;
+						}
+
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getCharsetAccess().getGroup());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rulecharset"
+
+
+	// $ANTLR start "entryRuleimportExpression"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:117:1: entryRuleimportExpression : ruleimportExpression EOF ;
+	public final void entryRuleimportExpression() throws RecognitionException {
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:118:1: ( ruleimportExpression EOF )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:119:1: ruleimportExpression EOF
+			{
+				if (state.backtracking == 0) {
+					before(grammarAccess.getImportExpressionRule());
+				}
+				pushFollow(FOLLOW_ruleimportExpression_in_entryRuleimportExpression187);
+				ruleimportExpression();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				if (state.backtracking == 0) {
+					after(grammarAccess.getImportExpressionRule());
+				}
+				match(input, EOF, FOLLOW_EOF_in_entryRuleimportExpression194);
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+		}
+		return;
+	}
+
+	// $ANTLR end "entryRuleimportExpression"
+
+
+	// $ANTLR start "ruleimportExpression"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:126:1: ruleimportExpression : ( ( rule__ImportExpression__Group__0 ) ) ;
+	public final void ruleimportExpression() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:130:2: ( ( ( rule__ImportExpression__Group__0 ) ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:131:1: ( ( rule__ImportExpression__Group__0 ) )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:131:1: ( ( rule__ImportExpression__Group__0 ) )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:132:1: ( rule__ImportExpression__Group__0 )
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getImportExpressionAccess().getGroup());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:133:1: ( rule__ImportExpression__Group__0 )
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:133:2: rule__ImportExpression__Group__0
+					{
+						pushFollow(FOLLOW_rule__ImportExpression__Group__0_in_ruleimportExpression220);
+						rule__ImportExpression__Group__0();
+
+						state._fsp--;
+						if (state.failed) {
+							return;
+						}
+
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getImportExpressionAccess().getGroup());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "ruleimportExpression"
+
+
+	// $ANTLR start "entryRulepage"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:145:1: entryRulepage : rulepage EOF ;
+	public final void entryRulepage() throws RecognitionException {
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:146:1: ( rulepage EOF )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:147:1: rulepage EOF
+			{
+				if (state.backtracking == 0) {
+					before(grammarAccess.getPageRule());
+				}
+				pushFollow(FOLLOW_rulepage_in_entryRulepage247);
+				rulepage();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				if (state.backtracking == 0) {
+					after(grammarAccess.getPageRule());
+				}
+				match(input, EOF, FOLLOW_EOF_in_entryRulepage254);
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+		}
+		return;
+	}
+
+	// $ANTLR end "entryRulepage"
+
+
+	// $ANTLR start "rulepage"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:154:1: rulepage : ( ( rule__Page__Group__0 ) ) ;
+	public final void rulepage() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:158:2: ( ( ( rule__Page__Group__0 ) ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:159:1: ( ( rule__Page__Group__0 ) )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:159:1: ( ( rule__Page__Group__0 ) )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:160:1: ( rule__Page__Group__0 )
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getPageAccess().getGroup());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:161:1: ( rule__Page__Group__0 )
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:161:2: rule__Page__Group__0
+					{
+						pushFollow(FOLLOW_rule__Page__Group__0_in_rulepage280);
+						rule__Page__Group__0();
+
+						state._fsp--;
+						if (state.failed) {
+							return;
+						}
+
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getPageAccess().getGroup());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rulepage"
+
+
+	// $ANTLR start "entryRulepseudo_page"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:173:1: entryRulepseudo_page : rulepseudo_page EOF ;
+	public final void entryRulepseudo_page() throws RecognitionException {
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:174:1: ( rulepseudo_page EOF )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:175:1: rulepseudo_page EOF
+			{
+				if (state.backtracking == 0) {
+					before(grammarAccess.getPseudo_pageRule());
+				}
+				pushFollow(FOLLOW_rulepseudo_page_in_entryRulepseudo_page307);
+				rulepseudo_page();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				if (state.backtracking == 0) {
+					after(grammarAccess.getPseudo_pageRule());
+				}
+				match(input, EOF, FOLLOW_EOF_in_entryRulepseudo_page314);
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+		}
+		return;
+	}
+
+	// $ANTLR end "entryRulepseudo_page"
+
+
+	// $ANTLR start "rulepseudo_page"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:182:1: rulepseudo_page : ( ( rule__Pseudo_page__Group__0 ) ) ;
+	public final void rulepseudo_page() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:186:2: ( ( ( rule__Pseudo_page__Group__0 ) ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:187:1: ( ( rule__Pseudo_page__Group__0 ) )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:187:1: ( ( rule__Pseudo_page__Group__0 ) )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:188:1: ( rule__Pseudo_page__Group__0 )
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getPseudo_pageAccess().getGroup());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:189:1: ( rule__Pseudo_page__Group__0 )
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:189:2: rule__Pseudo_page__Group__0
+					{
+						pushFollow(FOLLOW_rule__Pseudo_page__Group__0_in_rulepseudo_page340);
+						rule__Pseudo_page__Group__0();
+
+						state._fsp--;
+						if (state.failed) {
+							return;
+						}
+
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getPseudo_pageAccess().getGroup());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rulepseudo_page"
+
+
+	// $ANTLR start "entryRulemedia"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:201:1: entryRulemedia : rulemedia EOF ;
+	public final void entryRulemedia() throws RecognitionException {
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:202:1: ( rulemedia EOF )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:203:1: rulemedia EOF
+			{
+				if (state.backtracking == 0) {
+					before(grammarAccess.getMediaRule());
+				}
+				pushFollow(FOLLOW_rulemedia_in_entryRulemedia367);
+				rulemedia();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				if (state.backtracking == 0) {
+					after(grammarAccess.getMediaRule());
+				}
+				match(input, EOF, FOLLOW_EOF_in_entryRulemedia374);
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+		}
+		return;
+	}
+
+	// $ANTLR end "entryRulemedia"
+
+
+	// $ANTLR start "rulemedia"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:210:1: rulemedia : ( ( rule__Media__Group__0 ) ) ;
+	public final void rulemedia() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:214:2: ( ( ( rule__Media__Group__0 ) ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:215:1: ( ( rule__Media__Group__0 ) )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:215:1: ( ( rule__Media__Group__0 ) )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:216:1: ( rule__Media__Group__0 )
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getMediaAccess().getGroup());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:217:1: ( rule__Media__Group__0 )
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:217:2: rule__Media__Group__0
+					{
+						pushFollow(FOLLOW_rule__Media__Group__0_in_rulemedia400);
+						rule__Media__Group__0();
+
+						state._fsp--;
+						if (state.failed) {
+							return;
+						}
+
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getMediaAccess().getGroup());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rulemedia"
+
+
+	// $ANTLR start "entryRulemedia_list"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:229:1: entryRulemedia_list : rulemedia_list EOF ;
+	public final void entryRulemedia_list() throws RecognitionException {
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:230:1: ( rulemedia_list EOF )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:231:1: rulemedia_list EOF
+			{
+				if (state.backtracking == 0) {
+					before(grammarAccess.getMedia_listRule());
+				}
+				pushFollow(FOLLOW_rulemedia_list_in_entryRulemedia_list427);
+				rulemedia_list();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				if (state.backtracking == 0) {
+					after(grammarAccess.getMedia_listRule());
+				}
+				match(input, EOF, FOLLOW_EOF_in_entryRulemedia_list434);
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+		}
+		return;
+	}
+
+	// $ANTLR end "entryRulemedia_list"
+
+
+	// $ANTLR start "rulemedia_list"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:238:1: rulemedia_list : ( ( rule__Media_list__Group__0 ) ) ;
+	public final void rulemedia_list() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:242:2: ( ( ( rule__Media_list__Group__0 ) ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:243:1: ( ( rule__Media_list__Group__0 ) )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:243:1: ( ( rule__Media_list__Group__0 ) )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:244:1: ( rule__Media_list__Group__0 )
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getMedia_listAccess().getGroup());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:245:1: ( rule__Media_list__Group__0 )
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:245:2: rule__Media_list__Group__0
+					{
+						pushFollow(FOLLOW_rule__Media_list__Group__0_in_rulemedia_list460);
+						rule__Media_list__Group__0();
+
+						state._fsp--;
+						if (state.failed) {
+							return;
+						}
+
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getMedia_listAccess().getGroup());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rulemedia_list"
+
+
+	// $ANTLR start "entryRulemedium"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:257:1: entryRulemedium : rulemedium EOF ;
+	public final void entryRulemedium() throws RecognitionException {
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:258:1: ( rulemedium EOF )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:259:1: rulemedium EOF
+			{
+				if (state.backtracking == 0) {
+					before(grammarAccess.getMediumRule());
+				}
+				pushFollow(FOLLOW_rulemedium_in_entryRulemedium487);
+				rulemedium();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				if (state.backtracking == 0) {
+					after(grammarAccess.getMediumRule());
+				}
+				match(input, EOF, FOLLOW_EOF_in_entryRulemedium494);
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+		}
+		return;
+	}
+
+	// $ANTLR end "entryRulemedium"
+
+
+	// $ANTLR start "rulemedium"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:266:1: rulemedium : ( ruleIdentifier ) ;
+	public final void rulemedium() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:270:2: ( ( ruleIdentifier ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:271:1: ( ruleIdentifier )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:271:1: ( ruleIdentifier )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:272:1: ruleIdentifier
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getMediumAccess().getIdentifierParserRuleCall());
+					}
+					pushFollow(FOLLOW_ruleIdentifier_in_rulemedium520);
+					ruleIdentifier();
+
+					state._fsp--;
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getMediumAccess().getIdentifierParserRuleCall());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rulemedium"
+
+
+	// $ANTLR start "entryRulefont_face"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:285:1: entryRulefont_face : rulefont_face EOF ;
+	public final void entryRulefont_face() throws RecognitionException {
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:286:1: ( rulefont_face EOF )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:287:1: rulefont_face EOF
+			{
+				if (state.backtracking == 0) {
+					before(grammarAccess.getFont_faceRule());
+				}
+				pushFollow(FOLLOW_rulefont_face_in_entryRulefont_face546);
+				rulefont_face();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				if (state.backtracking == 0) {
+					after(grammarAccess.getFont_faceRule());
+				}
+				match(input, EOF, FOLLOW_EOF_in_entryRulefont_face553);
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+		}
+		return;
+	}
+
+	// $ANTLR end "entryRulefont_face"
+
+
+	// $ANTLR start "rulefont_face"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:294:1: rulefont_face : ( ( rule__Font_face__Group__0 ) ) ;
+	public final void rulefont_face() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:298:2: ( ( ( rule__Font_face__Group__0 ) ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:299:1: ( ( rule__Font_face__Group__0 ) )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:299:1: ( ( rule__Font_face__Group__0 ) )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:300:1: ( rule__Font_face__Group__0 )
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getFont_faceAccess().getGroup());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:301:1: ( rule__Font_face__Group__0 )
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:301:2: rule__Font_face__Group__0
+					{
+						pushFollow(FOLLOW_rule__Font_face__Group__0_in_rulefont_face579);
+						rule__Font_face__Group__0();
+
+						state._fsp--;
+						if (state.failed) {
+							return;
+						}
+
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getFont_faceAccess().getGroup());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rulefont_face"
+
+
+	// $ANTLR start "entryRulekeyframes"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:313:1: entryRulekeyframes : rulekeyframes EOF ;
+	public final void entryRulekeyframes() throws RecognitionException {
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:314:1: ( rulekeyframes EOF )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:315:1: rulekeyframes EOF
+			{
+				if (state.backtracking == 0) {
+					before(grammarAccess.getKeyframesRule());
+				}
+				pushFollow(FOLLOW_rulekeyframes_in_entryRulekeyframes606);
+				rulekeyframes();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				if (state.backtracking == 0) {
+					after(grammarAccess.getKeyframesRule());
+				}
+				match(input, EOF, FOLLOW_EOF_in_entryRulekeyframes613);
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+		}
+		return;
+	}
+
+	// $ANTLR end "entryRulekeyframes"
+
+
+	// $ANTLR start "rulekeyframes"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:322:1: rulekeyframes : ( ( rule__Keyframes__Group__0 ) ) ;
+	public final void rulekeyframes() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:326:2: ( ( ( rule__Keyframes__Group__0 ) ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:327:1: ( ( rule__Keyframes__Group__0 ) )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:327:1: ( ( rule__Keyframes__Group__0 ) )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:328:1: ( rule__Keyframes__Group__0 )
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getKeyframesAccess().getGroup());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:329:1: ( rule__Keyframes__Group__0 )
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:329:2: rule__Keyframes__Group__0
+					{
+						pushFollow(FOLLOW_rule__Keyframes__Group__0_in_rulekeyframes639);
+						rule__Keyframes__Group__0();
+
+						state._fsp--;
+						if (state.failed) {
+							return;
+						}
+
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getKeyframesAccess().getGroup());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rulekeyframes"
+
+
+	// $ANTLR start "entryRulekeyframe_selector"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:341:1: entryRulekeyframe_selector : rulekeyframe_selector EOF ;
+	public final void entryRulekeyframe_selector() throws RecognitionException {
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:342:1: ( rulekeyframe_selector EOF )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:343:1: rulekeyframe_selector EOF
+			{
+				if (state.backtracking == 0) {
+					before(grammarAccess.getKeyframe_selectorRule());
+				}
+				pushFollow(FOLLOW_rulekeyframe_selector_in_entryRulekeyframe_selector666);
+				rulekeyframe_selector();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				if (state.backtracking == 0) {
+					after(grammarAccess.getKeyframe_selectorRule());
+				}
+				match(input, EOF, FOLLOW_EOF_in_entryRulekeyframe_selector673);
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+		}
+		return;
+	}
+
+	// $ANTLR end "entryRulekeyframe_selector"
+
+
+	// $ANTLR start "rulekeyframe_selector"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:350:1: rulekeyframe_selector : ( ( rule__Keyframe_selector__Group__0 ) ) ;
+	public final void rulekeyframe_selector() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:354:2: ( ( ( rule__Keyframe_selector__Group__0 ) ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:355:1: ( ( rule__Keyframe_selector__Group__0 ) )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:355:1: ( ( rule__Keyframe_selector__Group__0 ) )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:356:1: ( rule__Keyframe_selector__Group__0 )
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getKeyframe_selectorAccess().getGroup());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:357:1: ( rule__Keyframe_selector__Group__0 )
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:357:2: rule__Keyframe_selector__Group__0
+					{
+						pushFollow(FOLLOW_rule__Keyframe_selector__Group__0_in_rulekeyframe_selector699);
+						rule__Keyframe_selector__Group__0();
+
+						state._fsp--;
+						if (state.failed) {
+							return;
+						}
+
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getKeyframe_selectorAccess().getGroup());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rulekeyframe_selector"
+
+
+	// $ANTLR start "entryRuleruleset"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:369:1: entryRuleruleset : ruleruleset EOF ;
+	public final void entryRuleruleset() throws RecognitionException {
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:370:1: ( ruleruleset EOF )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:371:1: ruleruleset EOF
+			{
+				if (state.backtracking == 0) {
+					before(grammarAccess.getRulesetRule());
+				}
+				pushFollow(FOLLOW_ruleruleset_in_entryRuleruleset726);
+				ruleruleset();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				if (state.backtracking == 0) {
+					after(grammarAccess.getRulesetRule());
+				}
+				match(input, EOF, FOLLOW_EOF_in_entryRuleruleset733);
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+		}
+		return;
+	}
+
+	// $ANTLR end "entryRuleruleset"
+
+
+	// $ANTLR start "ruleruleset"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:378:1: ruleruleset : ( ( rule__Ruleset__Group__0 ) ) ;
+	public final void ruleruleset() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:382:2: ( ( ( rule__Ruleset__Group__0 ) ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:383:1: ( ( rule__Ruleset__Group__0 ) )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:383:1: ( ( rule__Ruleset__Group__0 ) )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:384:1: ( rule__Ruleset__Group__0 )
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getRulesetAccess().getGroup());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:385:1: ( rule__Ruleset__Group__0 )
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:385:2: rule__Ruleset__Group__0
+					{
+						pushFollow(FOLLOW_rule__Ruleset__Group__0_in_ruleruleset759);
+						rule__Ruleset__Group__0();
+
+						state._fsp--;
+						if (state.failed) {
+							return;
+						}
+
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getRulesetAccess().getGroup());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "ruleruleset"
+
+
+	// $ANTLR start "entryRuleselector"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:397:1: entryRuleselector : ruleselector EOF ;
+	public final void entryRuleselector() throws RecognitionException {
+
+		HiddenTokens myHiddenTokenState = ((XtextTokenStream) input).setHiddenTokens("RULE_ML_COMMENT");
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:401:1: ( ruleselector EOF )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:402:1: ruleselector EOF
+			{
+				if (state.backtracking == 0) {
+					before(grammarAccess.getSelectorRule());
+				}
+				pushFollow(FOLLOW_ruleselector_in_entryRuleselector791);
+				ruleselector();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				if (state.backtracking == 0) {
+					after(grammarAccess.getSelectorRule());
+				}
+				match(input, EOF, FOLLOW_EOF_in_entryRuleselector798);
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			myHiddenTokenState.restore();
+
+		}
+		return;
+	}
+
+	// $ANTLR end "entryRuleselector"
+
+
+	// $ANTLR start "ruleselector"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:412:1: ruleselector : ( ( rule__Selector__Group__0 ) ) ;
+	public final void ruleselector() throws RecognitionException {
+
+		HiddenTokens myHiddenTokenState = ((XtextTokenStream) input).setHiddenTokens("RULE_ML_COMMENT");
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:417:2: ( ( ( rule__Selector__Group__0 ) ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:418:1: ( ( rule__Selector__Group__0 ) )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:418:1: ( ( rule__Selector__Group__0 ) )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:419:1: ( rule__Selector__Group__0 )
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getSelectorAccess().getGroup());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:420:1: ( rule__Selector__Group__0 )
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:420:2: rule__Selector__Group__0
+					{
+						pushFollow(FOLLOW_rule__Selector__Group__0_in_ruleselector828);
+						rule__Selector__Group__0();
+
+						state._fsp--;
+						if (state.failed) {
+							return;
+						}
+
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getSelectorAccess().getGroup());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+			myHiddenTokenState.restore();
+
+		}
+		return;
+	}
+
+	// $ANTLR end "ruleselector"
+
+
+	// $ANTLR start "entryRuleSimpleSelectorForNegation"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:433:1: entryRuleSimpleSelectorForNegation : ruleSimpleSelectorForNegation EOF ;
+	public final void entryRuleSimpleSelectorForNegation() throws RecognitionException {
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:434:1: ( ruleSimpleSelectorForNegation EOF )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:435:1: ruleSimpleSelectorForNegation EOF
+			{
+				if (state.backtracking == 0) {
+					before(grammarAccess.getSimpleSelectorForNegationRule());
+				}
+				pushFollow(FOLLOW_ruleSimpleSelectorForNegation_in_entryRuleSimpleSelectorForNegation855);
+				ruleSimpleSelectorForNegation();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				if (state.backtracking == 0) {
+					after(grammarAccess.getSimpleSelectorForNegationRule());
+				}
+				match(input, EOF, FOLLOW_EOF_in_entryRuleSimpleSelectorForNegation862);
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+		}
+		return;
+	}
+
+	// $ANTLR end "entryRuleSimpleSelectorForNegation"
+
+
+	// $ANTLR start "ruleSimpleSelectorForNegation"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:442:1: ruleSimpleSelectorForNegation : ( ( rule__SimpleSelectorForNegation__Alternatives ) ) ;
+	public final void ruleSimpleSelectorForNegation() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:446:2: ( ( ( rule__SimpleSelectorForNegation__Alternatives ) ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:447:1: ( ( rule__SimpleSelectorForNegation__Alternatives ) )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:447:1: ( ( rule__SimpleSelectorForNegation__Alternatives ) )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:448:1: ( rule__SimpleSelectorForNegation__Alternatives )
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getSimpleSelectorForNegationAccess().getAlternatives());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:449:1: ( rule__SimpleSelectorForNegation__Alternatives )
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:449:2: rule__SimpleSelectorForNegation__Alternatives
+					{
+						pushFollow(FOLLOW_rule__SimpleSelectorForNegation__Alternatives_in_ruleSimpleSelectorForNegation888);
+						rule__SimpleSelectorForNegation__Alternatives();
+
+						state._fsp--;
+						if (state.failed) {
+							return;
+						}
+
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getSimpleSelectorForNegationAccess().getAlternatives());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "ruleSimpleSelectorForNegation"
+
+
+	// $ANTLR start "entryRuleSubSelectorForNegation"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:461:1: entryRuleSubSelectorForNegation : ruleSubSelectorForNegation EOF ;
+	public final void entryRuleSubSelectorForNegation() throws RecognitionException {
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:462:1: ( ruleSubSelectorForNegation EOF )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:463:1: ruleSubSelectorForNegation EOF
+			{
+				if (state.backtracking == 0) {
+					before(grammarAccess.getSubSelectorForNegationRule());
+				}
+				pushFollow(FOLLOW_ruleSubSelectorForNegation_in_entryRuleSubSelectorForNegation915);
+				ruleSubSelectorForNegation();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				if (state.backtracking == 0) {
+					after(grammarAccess.getSubSelectorForNegationRule());
+				}
+				match(input, EOF, FOLLOW_EOF_in_entryRuleSubSelectorForNegation922);
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+		}
+		return;
+	}
+
+	// $ANTLR end "entryRuleSubSelectorForNegation"
+
+
+	// $ANTLR start "ruleSubSelectorForNegation"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:470:1: ruleSubSelectorForNegation : ( ( rule__SubSelectorForNegation__Alternatives ) ) ;
+	public final void ruleSubSelectorForNegation() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:474:2: ( ( ( rule__SubSelectorForNegation__Alternatives ) ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:475:1: ( ( rule__SubSelectorForNegation__Alternatives ) )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:475:1: ( ( rule__SubSelectorForNegation__Alternatives ) )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:476:1: ( rule__SubSelectorForNegation__Alternatives )
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getSubSelectorForNegationAccess().getAlternatives());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:477:1: ( rule__SubSelectorForNegation__Alternatives )
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:477:2: rule__SubSelectorForNegation__Alternatives
+					{
+						pushFollow(FOLLOW_rule__SubSelectorForNegation__Alternatives_in_ruleSubSelectorForNegation948);
+						rule__SubSelectorForNegation__Alternatives();
+
+						state._fsp--;
+						if (state.failed) {
+							return;
+						}
+
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getSubSelectorForNegationAccess().getAlternatives());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "ruleSubSelectorForNegation"
+
+
+	// $ANTLR start "entryRulesimple_selector"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:489:1: entryRulesimple_selector : rulesimple_selector EOF ;
+	public final void entryRulesimple_selector() throws RecognitionException {
+
+		HiddenTokens myHiddenTokenState = ((XtextTokenStream) input).setHiddenTokens("RULE_ML_COMMENT");
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:493:1: ( rulesimple_selector EOF )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:494:1: rulesimple_selector EOF
+			{
+				if (state.backtracking == 0) {
+					before(grammarAccess.getSimple_selectorRule());
+				}
+				pushFollow(FOLLOW_rulesimple_selector_in_entryRulesimple_selector980);
+				rulesimple_selector();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				if (state.backtracking == 0) {
+					after(grammarAccess.getSimple_selectorRule());
+				}
+				match(input, EOF, FOLLOW_EOF_in_entryRulesimple_selector987);
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			myHiddenTokenState.restore();
+
+		}
+		return;
+	}
+
+	// $ANTLR end "entryRulesimple_selector"
+
+
+	// $ANTLR start "rulesimple_selector"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:504:1: rulesimple_selector : ( ( rule__Simple_selector__Alternatives ) ) ;
+	public final void rulesimple_selector() throws RecognitionException {
+
+		HiddenTokens myHiddenTokenState = ((XtextTokenStream) input).setHiddenTokens("RULE_ML_COMMENT");
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:509:2: ( ( ( rule__Simple_selector__Alternatives ) ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:510:1: ( ( rule__Simple_selector__Alternatives ) )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:510:1: ( ( rule__Simple_selector__Alternatives ) )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:511:1: ( rule__Simple_selector__Alternatives )
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getSimple_selectorAccess().getAlternatives());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:512:1: ( rule__Simple_selector__Alternatives )
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:512:2: rule__Simple_selector__Alternatives
+					{
+						pushFollow(FOLLOW_rule__Simple_selector__Alternatives_in_rulesimple_selector1017);
+						rule__Simple_selector__Alternatives();
+
+						state._fsp--;
+						if (state.failed) {
+							return;
+						}
+
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getSimple_selectorAccess().getAlternatives());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+			myHiddenTokenState.restore();
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rulesimple_selector"
+
+
+	// $ANTLR start "entryRuleSubSelector"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:525:1: entryRuleSubSelector : ruleSubSelector EOF ;
+	public final void entryRuleSubSelector() throws RecognitionException {
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:526:1: ( ruleSubSelector EOF )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:527:1: ruleSubSelector EOF
+			{
+				if (state.backtracking == 0) {
+					before(grammarAccess.getSubSelectorRule());
+				}
+				pushFollow(FOLLOW_ruleSubSelector_in_entryRuleSubSelector1044);
+				ruleSubSelector();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				if (state.backtracking == 0) {
+					after(grammarAccess.getSubSelectorRule());
+				}
+				match(input, EOF, FOLLOW_EOF_in_entryRuleSubSelector1051);
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+		}
+		return;
+	}
+
+	// $ANTLR end "entryRuleSubSelector"
+
+
+	// $ANTLR start "ruleSubSelector"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:534:1: ruleSubSelector : ( ( rule__SubSelector__Alternatives ) ) ;
+	public final void ruleSubSelector() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:538:2: ( ( ( rule__SubSelector__Alternatives ) ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:539:1: ( ( rule__SubSelector__Alternatives ) )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:539:1: ( ( rule__SubSelector__Alternatives ) )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:540:1: ( rule__SubSelector__Alternatives )
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getSubSelectorAccess().getAlternatives());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:541:1: ( rule__SubSelector__Alternatives )
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:541:2: rule__SubSelector__Alternatives
+					{
+						pushFollow(FOLLOW_rule__SubSelector__Alternatives_in_ruleSubSelector1077);
+						rule__SubSelector__Alternatives();
+
+						state._fsp--;
+						if (state.failed) {
+							return;
+						}
+
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getSubSelectorAccess().getAlternatives());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "ruleSubSelector"
+
+
+	// $ANTLR start "entryRuleAttributeSelector"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:553:1: entryRuleAttributeSelector : ruleAttributeSelector EOF ;
+	public final void entryRuleAttributeSelector() throws RecognitionException {
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:554:1: ( ruleAttributeSelector EOF )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:555:1: ruleAttributeSelector EOF
+			{
+				if (state.backtracking == 0) {
+					before(grammarAccess.getAttributeSelectorRule());
+				}
+				pushFollow(FOLLOW_ruleAttributeSelector_in_entryRuleAttributeSelector1104);
+				ruleAttributeSelector();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				if (state.backtracking == 0) {
+					after(grammarAccess.getAttributeSelectorRule());
+				}
+				match(input, EOF, FOLLOW_EOF_in_entryRuleAttributeSelector1111);
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+		}
+		return;
+	}
+
+	// $ANTLR end "entryRuleAttributeSelector"
+
+
+	// $ANTLR start "ruleAttributeSelector"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:562:1: ruleAttributeSelector : ( ( rule__AttributeSelector__Group__0 ) ) ;
+	public final void ruleAttributeSelector() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:566:2: ( ( ( rule__AttributeSelector__Group__0 ) ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:567:1: ( ( rule__AttributeSelector__Group__0 ) )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:567:1: ( ( rule__AttributeSelector__Group__0 ) )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:568:1: ( rule__AttributeSelector__Group__0 )
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getAttributeSelectorAccess().getGroup());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:569:1: ( rule__AttributeSelector__Group__0 )
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:569:2: rule__AttributeSelector__Group__0
+					{
+						pushFollow(FOLLOW_rule__AttributeSelector__Group__0_in_ruleAttributeSelector1137);
+						rule__AttributeSelector__Group__0();
+
+						state._fsp--;
+						if (state.failed) {
+							return;
+						}
+
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getAttributeSelectorAccess().getGroup());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "ruleAttributeSelector"
+
+
+	// $ANTLR start "entryRuleClassSelector"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:581:1: entryRuleClassSelector : ruleClassSelector EOF ;
+	public final void entryRuleClassSelector() throws RecognitionException {
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:582:1: ( ruleClassSelector EOF )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:583:1: ruleClassSelector EOF
+			{
+				if (state.backtracking == 0) {
+					before(grammarAccess.getClassSelectorRule());
+				}
+				pushFollow(FOLLOW_ruleClassSelector_in_entryRuleClassSelector1164);
+				ruleClassSelector();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				if (state.backtracking == 0) {
+					after(grammarAccess.getClassSelectorRule());
+				}
+				match(input, EOF, FOLLOW_EOF_in_entryRuleClassSelector1171);
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+		}
+		return;
+	}
+
+	// $ANTLR end "entryRuleClassSelector"
+
+
+	// $ANTLR start "ruleClassSelector"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:590:1: ruleClassSelector : ( ( rule__ClassSelector__Group__0 ) ) ;
+	public final void ruleClassSelector() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:594:2: ( ( ( rule__ClassSelector__Group__0 ) ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:595:1: ( ( rule__ClassSelector__Group__0 ) )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:595:1: ( ( rule__ClassSelector__Group__0 ) )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:596:1: ( rule__ClassSelector__Group__0 )
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getClassSelectorAccess().getGroup());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:597:1: ( rule__ClassSelector__Group__0 )
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:597:2: rule__ClassSelector__Group__0
+					{
+						pushFollow(FOLLOW_rule__ClassSelector__Group__0_in_ruleClassSelector1197);
+						rule__ClassSelector__Group__0();
+
+						state._fsp--;
+						if (state.failed) {
+							return;
+						}
+
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getClassSelectorAccess().getGroup());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "ruleClassSelector"
+
+
+	// $ANTLR start "entryRuleElementSelector"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:609:1: entryRuleElementSelector : ruleElementSelector EOF ;
+	public final void entryRuleElementSelector() throws RecognitionException {
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:610:1: ( ruleElementSelector EOF )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:611:1: ruleElementSelector EOF
+			{
+				if (state.backtracking == 0) {
+					before(grammarAccess.getElementSelectorRule());
+				}
+				pushFollow(FOLLOW_ruleElementSelector_in_entryRuleElementSelector1224);
+				ruleElementSelector();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				if (state.backtracking == 0) {
+					after(grammarAccess.getElementSelectorRule());
+				}
+				match(input, EOF, FOLLOW_EOF_in_entryRuleElementSelector1231);
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+		}
+		return;
+	}
+
+	// $ANTLR end "entryRuleElementSelector"
+
+
+	// $ANTLR start "ruleElementSelector"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:618:1: ruleElementSelector : ( ( rule__ElementSelector__Group__0 ) ) ;
+	public final void ruleElementSelector() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:622:2: ( ( ( rule__ElementSelector__Group__0 ) ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:623:1: ( ( rule__ElementSelector__Group__0 ) )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:623:1: ( ( rule__ElementSelector__Group__0 ) )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:624:1: ( rule__ElementSelector__Group__0 )
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getElementSelectorAccess().getGroup());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:625:1: ( rule__ElementSelector__Group__0 )
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:625:2: rule__ElementSelector__Group__0
+					{
+						pushFollow(FOLLOW_rule__ElementSelector__Group__0_in_ruleElementSelector1257);
+						rule__ElementSelector__Group__0();
+
+						state._fsp--;
+						if (state.failed) {
+							return;
+						}
+
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getElementSelectorAccess().getGroup());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "ruleElementSelector"
+
+
+	// $ANTLR start "entryRuleUniversalSelector"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:637:1: entryRuleUniversalSelector : ruleUniversalSelector EOF ;
+	public final void entryRuleUniversalSelector() throws RecognitionException {
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:638:1: ( ruleUniversalSelector EOF )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:639:1: ruleUniversalSelector EOF
+			{
+				if (state.backtracking == 0) {
+					before(grammarAccess.getUniversalSelectorRule());
+				}
+				pushFollow(FOLLOW_ruleUniversalSelector_in_entryRuleUniversalSelector1284);
+				ruleUniversalSelector();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				if (state.backtracking == 0) {
+					after(grammarAccess.getUniversalSelectorRule());
+				}
+				match(input, EOF, FOLLOW_EOF_in_entryRuleUniversalSelector1291);
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+		}
+		return;
+	}
+
+	// $ANTLR end "entryRuleUniversalSelector"
+
+
+	// $ANTLR start "ruleUniversalSelector"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:646:1: ruleUniversalSelector : ( ( rule__UniversalSelector__Group__0 ) ) ;
+	public final void ruleUniversalSelector() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:650:2: ( ( ( rule__UniversalSelector__Group__0 ) ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:651:1: ( ( rule__UniversalSelector__Group__0 ) )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:651:1: ( ( rule__UniversalSelector__Group__0 ) )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:652:1: ( rule__UniversalSelector__Group__0 )
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getUniversalSelectorAccess().getGroup());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:653:1: ( rule__UniversalSelector__Group__0 )
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:653:2: rule__UniversalSelector__Group__0
+					{
+						pushFollow(FOLLOW_rule__UniversalSelector__Group__0_in_ruleUniversalSelector1317);
+						rule__UniversalSelector__Group__0();
+
+						state._fsp--;
+						if (state.failed) {
+							return;
+						}
+
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getUniversalSelectorAccess().getGroup());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "ruleUniversalSelector"
+
+
+	// $ANTLR start "entryRuleIdSelector"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:665:1: entryRuleIdSelector : ruleIdSelector EOF ;
+	public final void entryRuleIdSelector() throws RecognitionException {
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:666:1: ( ruleIdSelector EOF )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:667:1: ruleIdSelector EOF
+			{
+				if (state.backtracking == 0) {
+					before(grammarAccess.getIdSelectorRule());
+				}
+				pushFollow(FOLLOW_ruleIdSelector_in_entryRuleIdSelector1344);
+				ruleIdSelector();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				if (state.backtracking == 0) {
+					after(grammarAccess.getIdSelectorRule());
+				}
+				match(input, EOF, FOLLOW_EOF_in_entryRuleIdSelector1351);
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+		}
+		return;
+	}
+
+	// $ANTLR end "entryRuleIdSelector"
+
+
+	// $ANTLR start "ruleIdSelector"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:674:1: ruleIdSelector : ( ( rule__IdSelector__Group__0 ) ) ;
+	public final void ruleIdSelector() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:678:2: ( ( ( rule__IdSelector__Group__0 ) ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:679:1: ( ( rule__IdSelector__Group__0 ) )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:679:1: ( ( rule__IdSelector__Group__0 ) )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:680:1: ( rule__IdSelector__Group__0 )
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getIdSelectorAccess().getGroup());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:681:1: ( rule__IdSelector__Group__0 )
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:681:2: rule__IdSelector__Group__0
+					{
+						pushFollow(FOLLOW_rule__IdSelector__Group__0_in_ruleIdSelector1377);
+						rule__IdSelector__Group__0();
+
+						state._fsp--;
+						if (state.failed) {
+							return;
+						}
+
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getIdSelectorAccess().getGroup());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "ruleIdSelector"
+
+
+	// $ANTLR start "entryRulecss_namespace_prefix"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:693:1: entryRulecss_namespace_prefix : rulecss_namespace_prefix EOF ;
+	public final void entryRulecss_namespace_prefix() throws RecognitionException {
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:694:1: ( rulecss_namespace_prefix EOF )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:695:1: rulecss_namespace_prefix EOF
+			{
+				if (state.backtracking == 0) {
+					before(grammarAccess.getCss_namespace_prefixRule());
+				}
+				pushFollow(FOLLOW_rulecss_namespace_prefix_in_entryRulecss_namespace_prefix1404);
+				rulecss_namespace_prefix();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				if (state.backtracking == 0) {
+					after(grammarAccess.getCss_namespace_prefixRule());
+				}
+				match(input, EOF, FOLLOW_EOF_in_entryRulecss_namespace_prefix1411);
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+		}
+		return;
+	}
+
+	// $ANTLR end "entryRulecss_namespace_prefix"
+
+
+	// $ANTLR start "rulecss_namespace_prefix"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:702:1: rulecss_namespace_prefix : ( ( rule__Css_namespace_prefix__Group__0 ) ) ;
+	public final void rulecss_namespace_prefix() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:706:2: ( ( ( rule__Css_namespace_prefix__Group__0 ) ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:707:1: ( ( rule__Css_namespace_prefix__Group__0 ) )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:707:1: ( ( rule__Css_namespace_prefix__Group__0 ) )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:708:1: ( rule__Css_namespace_prefix__Group__0 )
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getCss_namespace_prefixAccess().getGroup());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:709:1: ( rule__Css_namespace_prefix__Group__0 )
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:709:2: rule__Css_namespace_prefix__Group__0
+					{
+						pushFollow(FOLLOW_rule__Css_namespace_prefix__Group__0_in_rulecss_namespace_prefix1437);
+						rule__Css_namespace_prefix__Group__0();
+
+						state._fsp--;
+						if (state.failed) {
+							return;
+						}
+
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getCss_namespace_prefixAccess().getGroup());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rulecss_namespace_prefix"
+
+
+	// $ANTLR start "entryRulecss_declaration"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:721:1: entryRulecss_declaration : rulecss_declaration EOF ;
+	public final void entryRulecss_declaration() throws RecognitionException {
+
+		HiddenTokens myHiddenTokenState = ((XtextTokenStream) input).setHiddenTokens("RULE_ML_COMMENT");
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:725:1: ( rulecss_declaration EOF )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:726:1: rulecss_declaration EOF
+			{
+				if (state.backtracking == 0) {
+					before(grammarAccess.getCss_declarationRule());
+				}
+				pushFollow(FOLLOW_rulecss_declaration_in_entryRulecss_declaration1469);
+				rulecss_declaration();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				if (state.backtracking == 0) {
+					after(grammarAccess.getCss_declarationRule());
+				}
+				match(input, EOF, FOLLOW_EOF_in_entryRulecss_declaration1476);
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			myHiddenTokenState.restore();
+
+		}
+		return;
+	}
+
+	// $ANTLR end "entryRulecss_declaration"
+
+
+	// $ANTLR start "rulecss_declaration"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:736:1: rulecss_declaration : ( ( rule__Css_declaration__Group__0 ) ) ;
+	public final void rulecss_declaration() throws RecognitionException {
+
+		HiddenTokens myHiddenTokenState = ((XtextTokenStream) input).setHiddenTokens("RULE_ML_COMMENT");
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:741:2: ( ( ( rule__Css_declaration__Group__0 ) ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:742:1: ( ( rule__Css_declaration__Group__0 ) )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:742:1: ( ( rule__Css_declaration__Group__0 ) )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:743:1: ( rule__Css_declaration__Group__0 )
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getCss_declarationAccess().getGroup());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:744:1: ( rule__Css_declaration__Group__0 )
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:744:2: rule__Css_declaration__Group__0
+					{
+						pushFollow(FOLLOW_rule__Css_declaration__Group__0_in_rulecss_declaration1506);
+						rule__Css_declaration__Group__0();
+
+						state._fsp--;
+						if (state.failed) {
+							return;
+						}
+
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getCss_declarationAccess().getGroup());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+			myHiddenTokenState.restore();
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rulecss_declaration"
+
+
+	// $ANTLR start "entryRulecss_property"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:757:1: entryRulecss_property : rulecss_property EOF ;
+	public final void entryRulecss_property() throws RecognitionException {
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:758:1: ( rulecss_property EOF )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:759:1: rulecss_property EOF
+			{
+				if (state.backtracking == 0) {
+					before(grammarAccess.getCss_propertyRule());
+				}
+				pushFollow(FOLLOW_rulecss_property_in_entryRulecss_property1533);
+				rulecss_property();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				if (state.backtracking == 0) {
+					after(grammarAccess.getCss_propertyRule());
+				}
+				match(input, EOF, FOLLOW_EOF_in_entryRulecss_property1540);
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+		}
+		return;
+	}
+
+	// $ANTLR end "entryRulecss_property"
+
+
+	// $ANTLR start "rulecss_property"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:766:1: rulecss_property : ( ( rule__Css_property__Group__0 ) ) ;
+	public final void rulecss_property() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:770:2: ( ( ( rule__Css_property__Group__0 ) ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:771:1: ( ( rule__Css_property__Group__0 ) )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:771:1: ( ( rule__Css_property__Group__0 ) )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:772:1: ( rule__Css_property__Group__0 )
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getCss_propertyAccess().getGroup());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:773:1: ( rule__Css_property__Group__0 )
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:773:2: rule__Css_property__Group__0
+					{
+						pushFollow(FOLLOW_rule__Css_property__Group__0_in_rulecss_property1566);
+						rule__Css_property__Group__0();
+
+						state._fsp--;
+						if (state.failed) {
+							return;
+						}
+
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getCss_propertyAccess().getGroup());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rulecss_property"
+
+
+	// $ANTLR start "entryRuleValidPropertyIdent"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:785:1: entryRuleValidPropertyIdent : ruleValidPropertyIdent EOF ;
+	public final void entryRuleValidPropertyIdent() throws RecognitionException {
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:786:1: ( ruleValidPropertyIdent EOF )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:787:1: ruleValidPropertyIdent EOF
+			{
+				if (state.backtracking == 0) {
+					before(grammarAccess.getValidPropertyIdentRule());
+				}
+				pushFollow(FOLLOW_ruleValidPropertyIdent_in_entryRuleValidPropertyIdent1593);
+				ruleValidPropertyIdent();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				if (state.backtracking == 0) {
+					after(grammarAccess.getValidPropertyIdentRule());
+				}
+				match(input, EOF, FOLLOW_EOF_in_entryRuleValidPropertyIdent1600);
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+		}
+		return;
+	}
+
+	// $ANTLR end "entryRuleValidPropertyIdent"
+
+
+	// $ANTLR start "ruleValidPropertyIdent"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:794:1: ruleValidPropertyIdent : ( ruleIdentifier ) ;
+	public final void ruleValidPropertyIdent() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:798:2: ( ( ruleIdentifier ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:799:1: ( ruleIdentifier )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:799:1: ( ruleIdentifier )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:800:1: ruleIdentifier
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getValidPropertyIdentAccess().getIdentifierParserRuleCall());
+					}
+					pushFollow(FOLLOW_ruleIdentifier_in_ruleValidPropertyIdent1626);
+					ruleIdentifier();
+
+					state._fsp--;
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getValidPropertyIdentAccess().getIdentifierParserRuleCall());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "ruleValidPropertyIdent"
+
+
+	// $ANTLR start "entryRulePseudoClassOrFunc"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:813:1: entryRulePseudoClassOrFunc : rulePseudoClassOrFunc EOF ;
+	public final void entryRulePseudoClassOrFunc() throws RecognitionException {
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:814:1: ( rulePseudoClassOrFunc EOF )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:815:1: rulePseudoClassOrFunc EOF
+			{
+				if (state.backtracking == 0) {
+					before(grammarAccess.getPseudoClassOrFuncRule());
+				}
+				pushFollow(FOLLOW_rulePseudoClassOrFunc_in_entryRulePseudoClassOrFunc1652);
+				rulePseudoClassOrFunc();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				if (state.backtracking == 0) {
+					after(grammarAccess.getPseudoClassOrFuncRule());
+				}
+				match(input, EOF, FOLLOW_EOF_in_entryRulePseudoClassOrFunc1659);
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+		}
+		return;
+	}
+
+	// $ANTLR end "entryRulePseudoClassOrFunc"
+
+
+	// $ANTLR start "rulePseudoClassOrFunc"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:822:1: rulePseudoClassOrFunc : ( ( rule__PseudoClassOrFunc__Alternatives ) ) ;
+	public final void rulePseudoClassOrFunc() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:826:2: ( ( ( rule__PseudoClassOrFunc__Alternatives ) ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:827:1: ( ( rule__PseudoClassOrFunc__Alternatives ) )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:827:1: ( ( rule__PseudoClassOrFunc__Alternatives ) )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:828:1: ( rule__PseudoClassOrFunc__Alternatives )
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getPseudoClassOrFuncAccess().getAlternatives());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:829:1: ( rule__PseudoClassOrFunc__Alternatives )
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:829:2: rule__PseudoClassOrFunc__Alternatives
+					{
+						pushFollow(FOLLOW_rule__PseudoClassOrFunc__Alternatives_in_rulePseudoClassOrFunc1685);
+						rule__PseudoClassOrFunc__Alternatives();
+
+						state._fsp--;
+						if (state.failed) {
+							return;
+						}
+
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getPseudoClassOrFuncAccess().getAlternatives());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rulePseudoClassOrFunc"
+
+
+	// $ANTLR start "entryRulePseudoClass"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:841:1: entryRulePseudoClass : rulePseudoClass EOF ;
+	public final void entryRulePseudoClass() throws RecognitionException {
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:842:1: ( rulePseudoClass EOF )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:843:1: rulePseudoClass EOF
+			{
+				if (state.backtracking == 0) {
+					before(grammarAccess.getPseudoClassRule());
+				}
+				pushFollow(FOLLOW_rulePseudoClass_in_entryRulePseudoClass1712);
+				rulePseudoClass();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				if (state.backtracking == 0) {
+					after(grammarAccess.getPseudoClassRule());
+				}
+				match(input, EOF, FOLLOW_EOF_in_entryRulePseudoClass1719);
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+		}
+		return;
+	}
+
+	// $ANTLR end "entryRulePseudoClass"
+
+
+	// $ANTLR start "rulePseudoClass"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:850:1: rulePseudoClass : ( ( rule__PseudoClass__Group__0 ) ) ;
+	public final void rulePseudoClass() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:854:2: ( ( ( rule__PseudoClass__Group__0 ) ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:855:1: ( ( rule__PseudoClass__Group__0 ) )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:855:1: ( ( rule__PseudoClass__Group__0 ) )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:856:1: ( rule__PseudoClass__Group__0 )
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getPseudoClassAccess().getGroup());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:857:1: ( rule__PseudoClass__Group__0 )
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:857:2: rule__PseudoClass__Group__0
+					{
+						pushFollow(FOLLOW_rule__PseudoClass__Group__0_in_rulePseudoClass1745);
+						rule__PseudoClass__Group__0();
+
+						state._fsp--;
+						if (state.failed) {
+							return;
+						}
+
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getPseudoClassAccess().getGroup());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rulePseudoClass"
+
+
+	// $ANTLR start "entryRulePseudoClassName"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:869:1: entryRulePseudoClassName : rulePseudoClassName EOF ;
+	public final void entryRulePseudoClassName() throws RecognitionException {
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:870:1: ( rulePseudoClassName EOF )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:871:1: rulePseudoClassName EOF
+			{
+				if (state.backtracking == 0) {
+					before(grammarAccess.getPseudoClassNameRule());
+				}
+				pushFollow(FOLLOW_rulePseudoClassName_in_entryRulePseudoClassName1772);
+				rulePseudoClassName();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				if (state.backtracking == 0) {
+					after(grammarAccess.getPseudoClassNameRule());
+				}
+				match(input, EOF, FOLLOW_EOF_in_entryRulePseudoClassName1779);
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+		}
+		return;
+	}
+
+	// $ANTLR end "entryRulePseudoClassName"
+
+
+	// $ANTLR start "rulePseudoClassName"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:878:1: rulePseudoClassName : ( ( rule__PseudoClassName__NameAssignment ) ) ;
+	public final void rulePseudoClassName() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:882:2: ( ( ( rule__PseudoClassName__NameAssignment ) ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:883:1: ( ( rule__PseudoClassName__NameAssignment ) )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:883:1: ( ( rule__PseudoClassName__NameAssignment ) )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:884:1: ( rule__PseudoClassName__NameAssignment )
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getPseudoClassNameAccess().getNameAssignment());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:885:1: ( rule__PseudoClassName__NameAssignment )
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:885:2: rule__PseudoClassName__NameAssignment
+					{
+						pushFollow(FOLLOW_rule__PseudoClassName__NameAssignment_in_rulePseudoClassName1805);
+						rule__PseudoClassName__NameAssignment();
+
+						state._fsp--;
+						if (state.failed) {
+							return;
+						}
+
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getPseudoClassNameAccess().getNameAssignment());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rulePseudoClassName"
+
+
+	// $ANTLR start "entryRulePseudoClassFunction"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:897:1: entryRulePseudoClassFunction : rulePseudoClassFunction EOF ;
+	public final void entryRulePseudoClassFunction() throws RecognitionException {
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:898:1: ( rulePseudoClassFunction EOF )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:899:1: rulePseudoClassFunction EOF
+			{
+				if (state.backtracking == 0) {
+					before(grammarAccess.getPseudoClassFunctionRule());
+				}
+				pushFollow(FOLLOW_rulePseudoClassFunction_in_entryRulePseudoClassFunction1832);
+				rulePseudoClassFunction();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				if (state.backtracking == 0) {
+					after(grammarAccess.getPseudoClassFunctionRule());
+				}
+				match(input, EOF, FOLLOW_EOF_in_entryRulePseudoClassFunction1839);
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+		}
+		return;
+	}
+
+	// $ANTLR end "entryRulePseudoClassFunction"
+
+
+	// $ANTLR start "rulePseudoClassFunction"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:906:1: rulePseudoClassFunction : ( ( rule__PseudoClassFunction__Alternatives ) ) ;
+	public final void rulePseudoClassFunction() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:910:2: ( ( ( rule__PseudoClassFunction__Alternatives ) ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:911:1: ( ( rule__PseudoClassFunction__Alternatives ) )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:911:1: ( ( rule__PseudoClassFunction__Alternatives ) )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:912:1: ( rule__PseudoClassFunction__Alternatives )
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getPseudoClassFunctionAccess().getAlternatives());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:913:1: ( rule__PseudoClassFunction__Alternatives )
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:913:2: rule__PseudoClassFunction__Alternatives
+					{
+						pushFollow(FOLLOW_rule__PseudoClassFunction__Alternatives_in_rulePseudoClassFunction1865);
+						rule__PseudoClassFunction__Alternatives();
+
+						state._fsp--;
+						if (state.failed) {
+							return;
+						}
+
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getPseudoClassFunctionAccess().getAlternatives());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rulePseudoClassFunction"
+
+
+	// $ANTLR start "entryRuleNotFunctionCall"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:925:1: entryRuleNotFunctionCall : ruleNotFunctionCall EOF ;
+	public final void entryRuleNotFunctionCall() throws RecognitionException {
+
+		HiddenTokens myHiddenTokenState = ((XtextTokenStream) input).setHiddenTokens();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:929:1: ( ruleNotFunctionCall EOF )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:930:1: ruleNotFunctionCall EOF
+			{
+				if (state.backtracking == 0) {
+					before(grammarAccess.getNotFunctionCallRule());
+				}
+				pushFollow(FOLLOW_ruleNotFunctionCall_in_entryRuleNotFunctionCall1897);
+				ruleNotFunctionCall();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				if (state.backtracking == 0) {
+					after(grammarAccess.getNotFunctionCallRule());
+				}
+				match(input, EOF, FOLLOW_EOF_in_entryRuleNotFunctionCall1904);
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			myHiddenTokenState.restore();
+
+		}
+		return;
+	}
+
+	// $ANTLR end "entryRuleNotFunctionCall"
+
+
+	// $ANTLR start "ruleNotFunctionCall"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:940:1: ruleNotFunctionCall : ( ( rule__NotFunctionCall__Group__0 ) ) ;
+	public final void ruleNotFunctionCall() throws RecognitionException {
+
+		HiddenTokens myHiddenTokenState = ((XtextTokenStream) input).setHiddenTokens();
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:945:2: ( ( ( rule__NotFunctionCall__Group__0 ) ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:946:1: ( ( rule__NotFunctionCall__Group__0 ) )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:946:1: ( ( rule__NotFunctionCall__Group__0 ) )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:947:1: ( rule__NotFunctionCall__Group__0 )
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getNotFunctionCallAccess().getGroup());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:948:1: ( rule__NotFunctionCall__Group__0 )
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:948:2: rule__NotFunctionCall__Group__0
+					{
+						pushFollow(FOLLOW_rule__NotFunctionCall__Group__0_in_ruleNotFunctionCall1934);
+						rule__NotFunctionCall__Group__0();
+
+						state._fsp--;
+						if (state.failed) {
+							return;
+						}
+
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getNotFunctionCallAccess().getGroup());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+			myHiddenTokenState.restore();
+
+		}
+		return;
+	}
+
+	// $ANTLR end "ruleNotFunctionCall"
+
+
+	// $ANTLR start "entryRulecombinator"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:961:1: entryRulecombinator : rulecombinator EOF ;
+	public final void entryRulecombinator() throws RecognitionException {
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:962:1: ( rulecombinator EOF )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:963:1: rulecombinator EOF
+			{
+				if (state.backtracking == 0) {
+					before(grammarAccess.getCombinatorRule());
+				}
+				pushFollow(FOLLOW_rulecombinator_in_entryRulecombinator1961);
+				rulecombinator();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				if (state.backtracking == 0) {
+					after(grammarAccess.getCombinatorRule());
+				}
+				match(input, EOF, FOLLOW_EOF_in_entryRulecombinator1968);
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+		}
+		return;
+	}
+
+	// $ANTLR end "entryRulecombinator"
+
+
+	// $ANTLR start "rulecombinator"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:970:1: rulecombinator : ( ( rule__Combinator__Alternatives ) ) ;
+	public final void rulecombinator() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:974:2: ( ( ( rule__Combinator__Alternatives ) ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:975:1: ( ( rule__Combinator__Alternatives ) )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:975:1: ( ( rule__Combinator__Alternatives ) )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:976:1: ( rule__Combinator__Alternatives )
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getCombinatorAccess().getAlternatives());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:977:1: ( rule__Combinator__Alternatives )
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:977:2: rule__Combinator__Alternatives
+					{
+						pushFollow(FOLLOW_rule__Combinator__Alternatives_in_rulecombinator1994);
+						rule__Combinator__Alternatives();
+
+						state._fsp--;
+						if (state.failed) {
+							return;
+						}
+
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getCombinatorAccess().getAlternatives());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rulecombinator"
+
+
+	// $ANTLR start "entryRuleSymbolTok"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:993:1: entryRuleSymbolTok : ruleSymbolTok EOF ;
+	public final void entryRuleSymbolTok() throws RecognitionException {
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:994:1: ( ruleSymbolTok EOF )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:995:1: ruleSymbolTok EOF
+			{
+				if (state.backtracking == 0) {
+					before(grammarAccess.getSymbolTokRule());
+				}
+				pushFollow(FOLLOW_ruleSymbolTok_in_entryRuleSymbolTok2025);
+				ruleSymbolTok();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				if (state.backtracking == 0) {
+					after(grammarAccess.getSymbolTokRule());
+				}
+				match(input, EOF, FOLLOW_EOF_in_entryRuleSymbolTok2032);
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+		}
+		return;
+	}
+
+	// $ANTLR end "entryRuleSymbolTok"
+
+
+	// $ANTLR start "ruleSymbolTok"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1002:1: ruleSymbolTok : ( ( rule__SymbolTok__Group__0 ) ) ;
+	public final void ruleSymbolTok() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1006:2: ( ( ( rule__SymbolTok__Group__0 ) ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1007:1: ( ( rule__SymbolTok__Group__0 ) )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1007:1: ( ( rule__SymbolTok__Group__0 ) )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1008:1: ( rule__SymbolTok__Group__0 )
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getSymbolTokAccess().getGroup());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1009:1: ( rule__SymbolTok__Group__0 )
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1009:2: rule__SymbolTok__Group__0
+					{
+						pushFollow(FOLLOW_rule__SymbolTok__Group__0_in_ruleSymbolTok2058);
+						rule__SymbolTok__Group__0();
+
+						state._fsp--;
+						if (state.failed) {
+							return;
+						}
+
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getSymbolTokAccess().getGroup());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "ruleSymbolTok"
+
+
+	// $ANTLR start "entryRuleWSTok"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1021:1: entryRuleWSTok : ruleWSTok EOF ;
+	public final void entryRuleWSTok() throws RecognitionException {
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1022:1: ( ruleWSTok EOF )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1023:1: ruleWSTok EOF
+			{
+				if (state.backtracking == 0) {
+					before(grammarAccess.getWSTokRule());
+				}
+				pushFollow(FOLLOW_ruleWSTok_in_entryRuleWSTok2085);
+				ruleWSTok();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				if (state.backtracking == 0) {
+					after(grammarAccess.getWSTokRule());
+				}
+				match(input, EOF, FOLLOW_EOF_in_entryRuleWSTok2092);
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+		}
+		return;
+	}
+
+	// $ANTLR end "entryRuleWSTok"
+
+
+	// $ANTLR start "ruleWSTok"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1030:1: ruleWSTok : ( ( rule__WSTok__Group__0 ) ) ;
+	public final void ruleWSTok() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1034:2: ( ( ( rule__WSTok__Group__0 ) ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1035:1: ( ( rule__WSTok__Group__0 ) )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1035:1: ( ( rule__WSTok__Group__0 ) )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1036:1: ( rule__WSTok__Group__0 )
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getWSTokAccess().getGroup());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1037:1: ( rule__WSTok__Group__0 )
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1037:2: rule__WSTok__Group__0
+					{
+						pushFollow(FOLLOW_rule__WSTok__Group__0_in_ruleWSTok2118);
+						rule__WSTok__Group__0();
+
+						state._fsp--;
+						if (state.failed) {
+							return;
+						}
+
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getWSTokAccess().getGroup());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "ruleWSTok"
+
+
+	// $ANTLR start "entryRuleStringTok"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1049:1: entryRuleStringTok : ruleStringTok EOF ;
+	public final void entryRuleStringTok() throws RecognitionException {
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1050:1: ( ruleStringTok EOF )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1051:1: ruleStringTok EOF
+			{
+				if (state.backtracking == 0) {
+					before(grammarAccess.getStringTokRule());
+				}
+				pushFollow(FOLLOW_ruleStringTok_in_entryRuleStringTok2145);
+				ruleStringTok();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				if (state.backtracking == 0) {
+					after(grammarAccess.getStringTokRule());
+				}
+				match(input, EOF, FOLLOW_EOF_in_entryRuleStringTok2152);
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+		}
+		return;
+	}
+
+	// $ANTLR end "entryRuleStringTok"
+
+
+	// $ANTLR start "ruleStringTok"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1058:1: ruleStringTok : ( ( rule__StringTok__Group__0 ) ) ;
+	public final void ruleStringTok() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1062:2: ( ( ( rule__StringTok__Group__0 ) ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1063:1: ( ( rule__StringTok__Group__0 ) )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1063:1: ( ( rule__StringTok__Group__0 ) )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1064:1: ( rule__StringTok__Group__0 )
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getStringTokAccess().getGroup());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1065:1: ( rule__StringTok__Group__0 )
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1065:2: rule__StringTok__Group__0
+					{
+						pushFollow(FOLLOW_rule__StringTok__Group__0_in_ruleStringTok2178);
+						rule__StringTok__Group__0();
+
+						state._fsp--;
+						if (state.failed) {
+							return;
+						}
+
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getStringTokAccess().getGroup());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "ruleStringTok"
+
+
+	// $ANTLR start "entryRuleNumberTok"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1077:1: entryRuleNumberTok : ruleNumberTok EOF ;
+	public final void entryRuleNumberTok() throws RecognitionException {
+
+		HiddenTokens myHiddenTokenState = ((XtextTokenStream) input).setHiddenTokens();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1081:1: ( ruleNumberTok EOF )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1082:1: ruleNumberTok EOF
+			{
+				if (state.backtracking == 0) {
+					before(grammarAccess.getNumberTokRule());
+				}
+				pushFollow(FOLLOW_ruleNumberTok_in_entryRuleNumberTok2210);
+				ruleNumberTok();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				if (state.backtracking == 0) {
+					after(grammarAccess.getNumberTokRule());
+				}
+				match(input, EOF, FOLLOW_EOF_in_entryRuleNumberTok2217);
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			myHiddenTokenState.restore();
+
+		}
+		return;
+	}
+
+	// $ANTLR end "entryRuleNumberTok"
+
+
+	// $ANTLR start "ruleNumberTok"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1092:1: ruleNumberTok : ( ( rule__NumberTok__Group__0 ) ) ;
+	public final void ruleNumberTok() throws RecognitionException {
+
+		HiddenTokens myHiddenTokenState = ((XtextTokenStream) input).setHiddenTokens();
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1097:2: ( ( ( rule__NumberTok__Group__0 ) ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1098:1: ( ( rule__NumberTok__Group__0 ) )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1098:1: ( ( rule__NumberTok__Group__0 ) )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1099:1: ( rule__NumberTok__Group__0 )
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getNumberTokAccess().getGroup());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1100:1: ( rule__NumberTok__Group__0 )
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1100:2: rule__NumberTok__Group__0
+					{
+						pushFollow(FOLLOW_rule__NumberTok__Group__0_in_ruleNumberTok2247);
+						rule__NumberTok__Group__0();
+
+						state._fsp--;
+						if (state.failed) {
+							return;
+						}
+
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getNumberTokAccess().getGroup());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+			myHiddenTokenState.restore();
+
+		}
+		return;
+	}
+
+	// $ANTLR end "ruleNumberTok"
+
+
+	// $ANTLR start "entryRuleUrlTok"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1113:1: entryRuleUrlTok : ruleUrlTok EOF ;
+	public final void entryRuleUrlTok() throws RecognitionException {
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1114:1: ( ruleUrlTok EOF )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1115:1: ruleUrlTok EOF
+			{
+				if (state.backtracking == 0) {
+					before(grammarAccess.getUrlTokRule());
+				}
+				pushFollow(FOLLOW_ruleUrlTok_in_entryRuleUrlTok2274);
+				ruleUrlTok();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				if (state.backtracking == 0) {
+					after(grammarAccess.getUrlTokRule());
+				}
+				match(input, EOF, FOLLOW_EOF_in_entryRuleUrlTok2281);
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+		}
+		return;
+	}
+
+	// $ANTLR end "entryRuleUrlTok"
+
+
+	// $ANTLR start "ruleUrlTok"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1122:1: ruleUrlTok : ( ( rule__UrlTok__Group__0 ) ) ;
+	public final void ruleUrlTok() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1126:2: ( ( ( rule__UrlTok__Group__0 ) ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1127:1: ( ( rule__UrlTok__Group__0 ) )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1127:1: ( ( rule__UrlTok__Group__0 ) )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1128:1: ( rule__UrlTok__Group__0 )
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getUrlTokAccess().getGroup());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1129:1: ( rule__UrlTok__Group__0 )
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1129:2: rule__UrlTok__Group__0
+					{
+						pushFollow(FOLLOW_rule__UrlTok__Group__0_in_ruleUrlTok2307);
+						rule__UrlTok__Group__0();
+
+						state._fsp--;
+						if (state.failed) {
+							return;
+						}
+
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getUrlTokAccess().getGroup());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "ruleUrlTok"
+
+
+	// $ANTLR start "entryRuleColorTok"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1141:1: entryRuleColorTok : ruleColorTok EOF ;
+	public final void entryRuleColorTok() throws RecognitionException {
+
+		HiddenTokens myHiddenTokenState = ((XtextTokenStream) input).setHiddenTokens();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1145:1: ( ruleColorTok EOF )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1146:1: ruleColorTok EOF
+			{
+				if (state.backtracking == 0) {
+					before(grammarAccess.getColorTokRule());
+				}
+				pushFollow(FOLLOW_ruleColorTok_in_entryRuleColorTok2339);
+				ruleColorTok();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				if (state.backtracking == 0) {
+					after(grammarAccess.getColorTokRule());
+				}
+				match(input, EOF, FOLLOW_EOF_in_entryRuleColorTok2346);
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			myHiddenTokenState.restore();
+
+		}
+		return;
+	}
+
+	// $ANTLR end "entryRuleColorTok"
+
+
+	// $ANTLR start "ruleColorTok"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1156:1: ruleColorTok : ( ( rule__ColorTok__Group__0 ) ) ;
+	public final void ruleColorTok() throws RecognitionException {
+
+		HiddenTokens myHiddenTokenState = ((XtextTokenStream) input).setHiddenTokens();
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1161:2: ( ( ( rule__ColorTok__Group__0 ) ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1162:1: ( ( rule__ColorTok__Group__0 ) )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1162:1: ( ( rule__ColorTok__Group__0 ) )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1163:1: ( rule__ColorTok__Group__0 )
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getColorTokAccess().getGroup());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1164:1: ( rule__ColorTok__Group__0 )
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1164:2: rule__ColorTok__Group__0
+					{
+						pushFollow(FOLLOW_rule__ColorTok__Group__0_in_ruleColorTok2376);
+						rule__ColorTok__Group__0();
+
+						state._fsp--;
+						if (state.failed) {
+							return;
+						}
+
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getColorTokAccess().getGroup());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+			myHiddenTokenState.restore();
+
+		}
+		return;
+	}
+
+	// $ANTLR end "ruleColorTok"
+
+
+	// $ANTLR start "entryRuleIdentifierOrFuncTok"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1177:1: entryRuleIdentifierOrFuncTok : ruleIdentifierOrFuncTok EOF ;
+	public final void entryRuleIdentifierOrFuncTok() throws RecognitionException {
+
+		HiddenTokens myHiddenTokenState = ((XtextTokenStream) input).setHiddenTokens("RULE_ML_COMMENT");
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1181:1: ( ruleIdentifierOrFuncTok EOF )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1182:1: ruleIdentifierOrFuncTok EOF
+			{
+				if (state.backtracking == 0) {
+					before(grammarAccess.getIdentifierOrFuncTokRule());
+				}
+				pushFollow(FOLLOW_ruleIdentifierOrFuncTok_in_entryRuleIdentifierOrFuncTok2408);
+				ruleIdentifierOrFuncTok();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				if (state.backtracking == 0) {
+					after(grammarAccess.getIdentifierOrFuncTokRule());
+				}
+				match(input, EOF, FOLLOW_EOF_in_entryRuleIdentifierOrFuncTok2415);
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			myHiddenTokenState.restore();
+
+		}
+		return;
+	}
+
+	// $ANTLR end "entryRuleIdentifierOrFuncTok"
+
+
+	// $ANTLR start "ruleIdentifierOrFuncTok"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1192:1: ruleIdentifierOrFuncTok : ( ( rule__IdentifierOrFuncTok__Group__0 ) ) ;
+	public final void ruleIdentifierOrFuncTok() throws RecognitionException {
+
+		HiddenTokens myHiddenTokenState = ((XtextTokenStream) input).setHiddenTokens("RULE_ML_COMMENT");
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1197:2: ( ( ( rule__IdentifierOrFuncTok__Group__0 ) ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1198:1: ( ( rule__IdentifierOrFuncTok__Group__0 ) )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1198:1: ( ( rule__IdentifierOrFuncTok__Group__0 ) )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1199:1: ( rule__IdentifierOrFuncTok__Group__0 )
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getIdentifierOrFuncTokAccess().getGroup());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1200:1: ( rule__IdentifierOrFuncTok__Group__0 )
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1200:2: rule__IdentifierOrFuncTok__Group__0
+					{
+						pushFollow(FOLLOW_rule__IdentifierOrFuncTok__Group__0_in_ruleIdentifierOrFuncTok2445);
+						rule__IdentifierOrFuncTok__Group__0();
+
+						state._fsp--;
+						if (state.failed) {
+							return;
+						}
+
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getIdentifierOrFuncTokAccess().getGroup());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+			myHiddenTokenState.restore();
+
+		}
+		return;
+	}
+
+	// $ANTLR end "ruleIdentifierOrFuncTok"
+
+
+	// $ANTLR start "entryRuleCssTok"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1213:1: entryRuleCssTok : ruleCssTok EOF ;
+	public final void entryRuleCssTok() throws RecognitionException {
+
+		HiddenTokens myHiddenTokenState = ((XtextTokenStream) input).setHiddenTokens("RULE_ML_COMMENT");
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1217:1: ( ruleCssTok EOF )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1218:1: ruleCssTok EOF
+			{
+				if (state.backtracking == 0) {
+					before(grammarAccess.getCssTokRule());
+				}
+				pushFollow(FOLLOW_ruleCssTok_in_entryRuleCssTok2477);
+				ruleCssTok();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				if (state.backtracking == 0) {
+					after(grammarAccess.getCssTokRule());
+				}
+				match(input, EOF, FOLLOW_EOF_in_entryRuleCssTok2484);
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			myHiddenTokenState.restore();
+
+		}
+		return;
+	}
+
+	// $ANTLR end "entryRuleCssTok"
+
+
+	// $ANTLR start "ruleCssTok"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1228:1: ruleCssTok : ( ( rule__CssTok__Alternatives ) ) ;
+	public final void ruleCssTok() throws RecognitionException {
+
+		HiddenTokens myHiddenTokenState = ((XtextTokenStream) input).setHiddenTokens("RULE_ML_COMMENT");
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1233:2: ( ( ( rule__CssTok__Alternatives ) ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1234:1: ( ( rule__CssTok__Alternatives ) )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1234:1: ( ( rule__CssTok__Alternatives ) )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1235:1: ( rule__CssTok__Alternatives )
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getCssTokAccess().getAlternatives());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1236:1: ( rule__CssTok__Alternatives )
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1236:2: rule__CssTok__Alternatives
+					{
+						pushFollow(FOLLOW_rule__CssTok__Alternatives_in_ruleCssTok2514);
+						rule__CssTok__Alternatives();
+
+						state._fsp--;
+						if (state.failed) {
+							return;
+						}
+
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getCssTokAccess().getAlternatives());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+			myHiddenTokenState.restore();
+
+		}
+		return;
+	}
+
+	// $ANTLR end "ruleCssTok"
+
+
+	// $ANTLR start "entryRuleURLType"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1249:1: entryRuleURLType : ruleURLType EOF ;
+	public final void entryRuleURLType() throws RecognitionException {
+
+		HiddenTokens myHiddenTokenState = ((XtextTokenStream) input).setHiddenTokens();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1253:1: ( ruleURLType EOF )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1254:1: ruleURLType EOF
+			{
+				if (state.backtracking == 0) {
+					before(grammarAccess.getURLTypeRule());
+				}
+				pushFollow(FOLLOW_ruleURLType_in_entryRuleURLType2546);
+				ruleURLType();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				if (state.backtracking == 0) {
+					after(grammarAccess.getURLTypeRule());
+				}
+				match(input, EOF, FOLLOW_EOF_in_entryRuleURLType2553);
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			myHiddenTokenState.restore();
+
+		}
+		return;
+	}
+
+	// $ANTLR end "entryRuleURLType"
+
+
+	// $ANTLR start "ruleURLType"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1264:1: ruleURLType : ( ( rule__URLType__Group__0 ) ) ;
+	public final void ruleURLType() throws RecognitionException {
+
+		HiddenTokens myHiddenTokenState = ((XtextTokenStream) input).setHiddenTokens();
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1269:2: ( ( ( rule__URLType__Group__0 ) ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1270:1: ( ( rule__URLType__Group__0 ) )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1270:1: ( ( rule__URLType__Group__0 ) )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1271:1: ( rule__URLType__Group__0 )
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getURLTypeAccess().getGroup());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1272:1: ( rule__URLType__Group__0 )
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1272:2: rule__URLType__Group__0
+					{
+						pushFollow(FOLLOW_rule__URLType__Group__0_in_ruleURLType2583);
+						rule__URLType__Group__0();
+
+						state._fsp--;
+						if (state.failed) {
+							return;
+						}
+
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getURLTypeAccess().getGroup());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+			myHiddenTokenState.restore();
+
+		}
+		return;
+	}
+
+	// $ANTLR end "ruleURLType"
+
+
+	// $ANTLR start "entryRuleValidURLSymbol"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1285:1: entryRuleValidURLSymbol : ruleValidURLSymbol EOF ;
+	public final void entryRuleValidURLSymbol() throws RecognitionException {
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1286:1: ( ruleValidURLSymbol EOF )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1287:1: ruleValidURLSymbol EOF
+			{
+				if (state.backtracking == 0) {
+					before(grammarAccess.getValidURLSymbolRule());
+				}
+				pushFollow(FOLLOW_ruleValidURLSymbol_in_entryRuleValidURLSymbol2610);
+				ruleValidURLSymbol();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				if (state.backtracking == 0) {
+					after(grammarAccess.getValidURLSymbolRule());
+				}
+				match(input, EOF, FOLLOW_EOF_in_entryRuleValidURLSymbol2617);
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+		}
+		return;
+	}
+
+	// $ANTLR end "entryRuleValidURLSymbol"
+
+
+	// $ANTLR start "ruleValidURLSymbol"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1294:1: ruleValidURLSymbol : ( ( rule__ValidURLSymbol__Alternatives ) ) ;
+	public final void ruleValidURLSymbol() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1298:2: ( ( ( rule__ValidURLSymbol__Alternatives ) ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1299:1: ( ( rule__ValidURLSymbol__Alternatives ) )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1299:1: ( ( rule__ValidURLSymbol__Alternatives ) )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1300:1: ( rule__ValidURLSymbol__Alternatives )
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getValidURLSymbolAccess().getAlternatives());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1301:1: ( rule__ValidURLSymbol__Alternatives )
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1301:2: rule__ValidURLSymbol__Alternatives
+					{
+						pushFollow(FOLLOW_rule__ValidURLSymbol__Alternatives_in_ruleValidURLSymbol2643);
+						rule__ValidURLSymbol__Alternatives();
+
+						state._fsp--;
+						if (state.failed) {
+							return;
+						}
+
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getValidURLSymbolAccess().getAlternatives());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "ruleValidURLSymbol"
+
+
+	// $ANTLR start "entryRuleKeywordHack"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1313:1: entryRuleKeywordHack : ruleKeywordHack EOF ;
+	public final void entryRuleKeywordHack() throws RecognitionException {
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1314:1: ( ruleKeywordHack EOF )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1315:1: ruleKeywordHack EOF
+			{
+				if (state.backtracking == 0) {
+					before(grammarAccess.getKeywordHackRule());
+				}
+				pushFollow(FOLLOW_ruleKeywordHack_in_entryRuleKeywordHack2670);
+				ruleKeywordHack();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				if (state.backtracking == 0) {
+					after(grammarAccess.getKeywordHackRule());
+				}
+				match(input, EOF, FOLLOW_EOF_in_entryRuleKeywordHack2677);
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+		}
+		return;
+	}
+
+	// $ANTLR end "entryRuleKeywordHack"
+
+
+	// $ANTLR start "ruleKeywordHack"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1322:1: ruleKeywordHack : ( ( rule__KeywordHack__Alternatives ) ) ;
+	public final void ruleKeywordHack() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1326:2: ( ( ( rule__KeywordHack__Alternatives ) ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1327:1: ( ( rule__KeywordHack__Alternatives ) )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1327:1: ( ( rule__KeywordHack__Alternatives ) )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1328:1: ( rule__KeywordHack__Alternatives )
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getKeywordHackAccess().getAlternatives());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1329:1: ( rule__KeywordHack__Alternatives )
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1329:2: rule__KeywordHack__Alternatives
+					{
+						pushFollow(FOLLOW_rule__KeywordHack__Alternatives_in_ruleKeywordHack2703);
+						rule__KeywordHack__Alternatives();
+
+						state._fsp--;
+						if (state.failed) {
+							return;
+						}
+
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getKeywordHackAccess().getAlternatives());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "ruleKeywordHack"
+
+
+	// $ANTLR start "entryRuleValidURL"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1341:1: entryRuleValidURL : ruleValidURL EOF ;
+	public final void entryRuleValidURL() throws RecognitionException {
+
+		HiddenTokens myHiddenTokenState = ((XtextTokenStream) input).setHiddenTokens();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1345:1: ( ruleValidURL EOF )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1346:1: ruleValidURL EOF
+			{
+				if (state.backtracking == 0) {
+					before(grammarAccess.getValidURLRule());
+				}
+				pushFollow(FOLLOW_ruleValidURL_in_entryRuleValidURL2735);
+				ruleValidURL();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				if (state.backtracking == 0) {
+					after(grammarAccess.getValidURLRule());
+				}
+				match(input, EOF, FOLLOW_EOF_in_entryRuleValidURL2742);
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			myHiddenTokenState.restore();
+
+		}
+		return;
+	}
+
+	// $ANTLR end "entryRuleValidURL"
+
+
+	// $ANTLR start "ruleValidURL"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1356:1: ruleValidURL : ( ( rule__ValidURL__Alternatives ) ) ;
+	public final void ruleValidURL() throws RecognitionException {
+
+		HiddenTokens myHiddenTokenState = ((XtextTokenStream) input).setHiddenTokens();
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1361:2: ( ( ( rule__ValidURL__Alternatives ) ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1362:1: ( ( rule__ValidURL__Alternatives ) )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1362:1: ( ( rule__ValidURL__Alternatives ) )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1363:1: ( rule__ValidURL__Alternatives )
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getValidURLAccess().getAlternatives());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1364:1: ( rule__ValidURL__Alternatives )
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1364:2: rule__ValidURL__Alternatives
+					{
+						pushFollow(FOLLOW_rule__ValidURL__Alternatives_in_ruleValidURL2772);
+						rule__ValidURL__Alternatives();
+
+						state._fsp--;
+						if (state.failed) {
+							return;
+						}
+
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getValidURLAccess().getAlternatives());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+			myHiddenTokenState.restore();
+
+		}
+		return;
+	}
+
+	// $ANTLR end "ruleValidURL"
+
+
+	// $ANTLR start "entryRuleIdentifier"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1377:1: entryRuleIdentifier : ruleIdentifier EOF ;
+	public final void entryRuleIdentifier() throws RecognitionException {
+
+		HiddenTokens myHiddenTokenState = ((XtextTokenStream) input).setHiddenTokens();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1381:1: ( ruleIdentifier EOF )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1382:1: ruleIdentifier EOF
+			{
+				if (state.backtracking == 0) {
+					before(grammarAccess.getIdentifierRule());
+				}
+				pushFollow(FOLLOW_ruleIdentifier_in_entryRuleIdentifier2804);
+				ruleIdentifier();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				if (state.backtracking == 0) {
+					after(grammarAccess.getIdentifierRule());
+				}
+				match(input, EOF, FOLLOW_EOF_in_entryRuleIdentifier2811);
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			myHiddenTokenState.restore();
+
+		}
+		return;
+	}
+
+	// $ANTLR end "entryRuleIdentifier"
+
+
+	// $ANTLR start "ruleIdentifier"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1392:1: ruleIdentifier : ( ( rule__Identifier__Group__0 ) ) ;
+	public final void ruleIdentifier() throws RecognitionException {
+
+		HiddenTokens myHiddenTokenState = ((XtextTokenStream) input).setHiddenTokens();
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1397:2: ( ( ( rule__Identifier__Group__0 ) ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1398:1: ( ( rule__Identifier__Group__0 ) )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1398:1: ( ( rule__Identifier__Group__0 ) )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1399:1: ( rule__Identifier__Group__0 )
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getIdentifierAccess().getGroup());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1400:1: ( rule__Identifier__Group__0 )
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1400:2: rule__Identifier__Group__0
+					{
+						pushFollow(FOLLOW_rule__Identifier__Group__0_in_ruleIdentifier2841);
+						rule__Identifier__Group__0();
+
+						state._fsp--;
+						if (state.failed) {
+							return;
+						}
+
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getIdentifierAccess().getGroup());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+			myHiddenTokenState.restore();
+
+		}
+		return;
+	}
+
+	// $ANTLR end "ruleIdentifier"
+
+
+	// $ANTLR start "entryRuleNum"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1413:1: entryRuleNum : ruleNum EOF ;
+	public final void entryRuleNum() throws RecognitionException {
+
+		HiddenTokens myHiddenTokenState = ((XtextTokenStream) input).setHiddenTokens();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1417:1: ( ruleNum EOF )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1418:1: ruleNum EOF
+			{
+				if (state.backtracking == 0) {
+					before(grammarAccess.getNumRule());
+				}
+				pushFollow(FOLLOW_ruleNum_in_entryRuleNum2873);
+				ruleNum();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				if (state.backtracking == 0) {
+					after(grammarAccess.getNumRule());
+				}
+				match(input, EOF, FOLLOW_EOF_in_entryRuleNum2880);
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			myHiddenTokenState.restore();
+
+		}
+		return;
+	}
+
+	// $ANTLR end "entryRuleNum"
+
+
+	// $ANTLR start "ruleNum"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1428:1: ruleNum : ( ( rule__Num__Group__0 ) ) ;
+	public final void ruleNum() throws RecognitionException {
+
+		HiddenTokens myHiddenTokenState = ((XtextTokenStream) input).setHiddenTokens();
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1433:2: ( ( ( rule__Num__Group__0 ) ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1434:1: ( ( rule__Num__Group__0 ) )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1434:1: ( ( rule__Num__Group__0 ) )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1435:1: ( rule__Num__Group__0 )
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getNumAccess().getGroup());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1436:1: ( rule__Num__Group__0 )
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1436:2: rule__Num__Group__0
+					{
+						pushFollow(FOLLOW_rule__Num__Group__0_in_ruleNum2910);
+						rule__Num__Group__0();
+
+						state._fsp--;
+						if (state.failed) {
+							return;
+						}
+
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getNumAccess().getGroup());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+			myHiddenTokenState.restore();
+
+		}
+		return;
+	}
+
+	// $ANTLR end "ruleNum"
+
+
+	// $ANTLR start "entryRuleHex"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1449:1: entryRuleHex : ruleHex EOF ;
+	public final void entryRuleHex() throws RecognitionException {
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1450:1: ( ruleHex EOF )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1451:1: ruleHex EOF
+			{
+				if (state.backtracking == 0) {
+					before(grammarAccess.getHexRule());
+				}
+				pushFollow(FOLLOW_ruleHex_in_entryRuleHex2937);
+				ruleHex();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				if (state.backtracking == 0) {
+					after(grammarAccess.getHexRule());
+				}
+				match(input, EOF, FOLLOW_EOF_in_entryRuleHex2944);
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+		}
+		return;
+	}
+
+	// $ANTLR end "entryRuleHex"
+
+
+	// $ANTLR start "ruleHex"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1458:1: ruleHex : ( ( rule__Hex__Group__0 ) ) ;
+	public final void ruleHex() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1462:2: ( ( ( rule__Hex__Group__0 ) ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1463:1: ( ( rule__Hex__Group__0 ) )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1463:1: ( ( rule__Hex__Group__0 ) )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1464:1: ( rule__Hex__Group__0 )
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getHexAccess().getGroup());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1465:1: ( rule__Hex__Group__0 )
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1465:2: rule__Hex__Group__0
+					{
+						pushFollow(FOLLOW_rule__Hex__Group__0_in_ruleHex2970);
+						rule__Hex__Group__0();
+
+						state._fsp--;
+						if (state.failed) {
+							return;
+						}
+
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getHexAccess().getGroup());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "ruleHex"
+
+
+	// $ANTLR start "rule__Stylesheet__Alternatives_2"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1477:1: rule__Stylesheet__Alternatives_2 : ( ( ( rule__Stylesheet__RulesetAssignment_2_0 ) ) | ( (
+	// rule__Stylesheet__MediaAssignment_2_1 ) ) | ( ( rule__Stylesheet__PageAssignment_2_2 ) ) | ( ( rule__Stylesheet__Font_faceAssignment_2_3 ) ) | ( ( rule__Stylesheet__KeyframesAssignment_2_4 ) ) );
+	public final void rule__Stylesheet__Alternatives_2() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1481:1: ( ( ( rule__Stylesheet__RulesetAssignment_2_0 ) ) | ( ( rule__Stylesheet__MediaAssignment_2_1
+			// ) ) | ( ( rule__Stylesheet__PageAssignment_2_2 ) ) | ( ( rule__Stylesheet__Font_faceAssignment_2_3 ) ) | ( ( rule__Stylesheet__KeyframesAssignment_2_4 ) ) )
+			int alt1 = 5;
+			switch (input.LA(1)) {
+			case RULE_DASH:
+			case RULE_UNDERSCORE:
+			case RULE_COLON:
+			case RULE_HASHMARK:
+			case RULE_ONE_HEX_LETTER:
+			case RULE_ONE_NON_HEX_LETTER:
+			case 36:
+			case 39:
+			case 42:
+			case 49:
+			case 50:
+			case 51:
+			case 52:
+			case 60: {
+				alt1 = 1;
+			}
+				break;
+			case 26:
+			case 27: {
+				alt1 = 2;
+			}
+				break;
+			case 24:
+			case 25: {
+				alt1 = 3;
+			}
+				break;
+			case 28:
+			case 29: {
+				alt1 = 4;
+			}
+				break;
+			case 30:
+			case 31: {
+				alt1 = 5;
+			}
+				break;
+			default:
+				if (state.backtracking > 0) {
+					state.failed = true;
+					return;
+				}
+				NoViableAltException nvae =
+						new NoViableAltException("", 1, 0, input);
+
+				throw nvae;
+			}
+
+			switch (alt1) {
+			case 1:
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1482:1: ( ( rule__Stylesheet__RulesetAssignment_2_0 ) )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1482:1: ( ( rule__Stylesheet__RulesetAssignment_2_0 ) )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1483:1: ( rule__Stylesheet__RulesetAssignment_2_0 )
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getStylesheetAccess().getRulesetAssignment_2_0());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1484:1: ( rule__Stylesheet__RulesetAssignment_2_0 )
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1484:2: rule__Stylesheet__RulesetAssignment_2_0
+					{
+						pushFollow(FOLLOW_rule__Stylesheet__RulesetAssignment_2_0_in_rule__Stylesheet__Alternatives_23006);
+						rule__Stylesheet__RulesetAssignment_2_0();
+
+						state._fsp--;
+						if (state.failed) {
+							return;
+						}
+
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getStylesheetAccess().getRulesetAssignment_2_0());
+					}
+
+				}
+
+
+			}
+				break;
+			case 2:
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1488:6: ( ( rule__Stylesheet__MediaAssignment_2_1 ) )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1488:6: ( ( rule__Stylesheet__MediaAssignment_2_1 ) )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1489:1: ( rule__Stylesheet__MediaAssignment_2_1 )
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getStylesheetAccess().getMediaAssignment_2_1());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1490:1: ( rule__Stylesheet__MediaAssignment_2_1 )
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1490:2: rule__Stylesheet__MediaAssignment_2_1
+					{
+						pushFollow(FOLLOW_rule__Stylesheet__MediaAssignment_2_1_in_rule__Stylesheet__Alternatives_23024);
+						rule__Stylesheet__MediaAssignment_2_1();
+
+						state._fsp--;
+						if (state.failed) {
+							return;
+						}
+
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getStylesheetAccess().getMediaAssignment_2_1());
+					}
+
+				}
+
+
+			}
+				break;
+			case 3:
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1494:6: ( ( rule__Stylesheet__PageAssignment_2_2 ) )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1494:6: ( ( rule__Stylesheet__PageAssignment_2_2 ) )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1495:1: ( rule__Stylesheet__PageAssignment_2_2 )
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getStylesheetAccess().getPageAssignment_2_2());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1496:1: ( rule__Stylesheet__PageAssignment_2_2 )
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1496:2: rule__Stylesheet__PageAssignment_2_2
+					{
+						pushFollow(FOLLOW_rule__Stylesheet__PageAssignment_2_2_in_rule__Stylesheet__Alternatives_23042);
+						rule__Stylesheet__PageAssignment_2_2();
+
+						state._fsp--;
+						if (state.failed) {
+							return;
+						}
+
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getStylesheetAccess().getPageAssignment_2_2());
+					}
+
+				}
+
+
+			}
+				break;
+			case 4:
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1500:6: ( ( rule__Stylesheet__Font_faceAssignment_2_3 ) )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1500:6: ( ( rule__Stylesheet__Font_faceAssignment_2_3 ) )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1501:1: ( rule__Stylesheet__Font_faceAssignment_2_3 )
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getStylesheetAccess().getFont_faceAssignment_2_3());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1502:1: ( rule__Stylesheet__Font_faceAssignment_2_3 )
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1502:2: rule__Stylesheet__Font_faceAssignment_2_3
+					{
+						pushFollow(FOLLOW_rule__Stylesheet__Font_faceAssignment_2_3_in_rule__Stylesheet__Alternatives_23060);
+						rule__Stylesheet__Font_faceAssignment_2_3();
+
+						state._fsp--;
+						if (state.failed) {
+							return;
+						}
+
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getStylesheetAccess().getFont_faceAssignment_2_3());
+					}
+
+				}
+
+
+			}
+				break;
+			case 5:
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1506:6: ( ( rule__Stylesheet__KeyframesAssignment_2_4 ) )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1506:6: ( ( rule__Stylesheet__KeyframesAssignment_2_4 ) )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1507:1: ( rule__Stylesheet__KeyframesAssignment_2_4 )
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getStylesheetAccess().getKeyframesAssignment_2_4());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1508:1: ( rule__Stylesheet__KeyframesAssignment_2_4 )
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1508:2: rule__Stylesheet__KeyframesAssignment_2_4
+					{
+						pushFollow(FOLLOW_rule__Stylesheet__KeyframesAssignment_2_4_in_rule__Stylesheet__Alternatives_23078);
+						rule__Stylesheet__KeyframesAssignment_2_4();
+
+						state._fsp--;
+						if (state.failed) {
+							return;
+						}
+
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getStylesheetAccess().getKeyframesAssignment_2_4());
+					}
+
+				}
+
+
+			}
+				break;
+
+			}
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Stylesheet__Alternatives_2"
+
+
+	// $ANTLR start "rule__Charset__Alternatives_0"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1517:1: rule__Charset__Alternatives_0 : ( ( '@charset' ) | ( '@CHARSET' ) );
+	public final void rule__Charset__Alternatives_0() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1521:1: ( ( '@charset' ) | ( '@CHARSET' ) )
+			int alt2 = 2;
+			int LA2_0 = input.LA(1);
+
+			if ((LA2_0 == 20)) {
+				alt2 = 1;
+			}
+			else if ((LA2_0 == 21)) {
+				alt2 = 2;
+			}
+			else {
+				if (state.backtracking > 0) {
+					state.failed = true;
+					return;
+				}
+				NoViableAltException nvae =
+						new NoViableAltException("", 2, 0, input);
+
+				throw nvae;
+			}
+			switch (alt2) {
+			case 1:
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1522:1: ( '@charset' )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1522:1: ( '@charset' )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1523:1: '@charset'
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getCharsetAccess().getCharsetKeyword_0_0());
+					}
+					match(input, 20, FOLLOW_20_in_rule__Charset__Alternatives_03112);
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getCharsetAccess().getCharsetKeyword_0_0());
+					}
+
+				}
+
+
+			}
+				break;
+			case 2:
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1530:6: ( '@CHARSET' )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1530:6: ( '@CHARSET' )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1531:1: '@CHARSET'
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getCharsetAccess().getCHARSETKeyword_0_1());
+					}
+					match(input, 21, FOLLOW_21_in_rule__Charset__Alternatives_03132);
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getCharsetAccess().getCHARSETKeyword_0_1());
+					}
+
+				}
+
+
+			}
+				break;
+
+			}
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Charset__Alternatives_0"
+
+
+	// $ANTLR start "rule__ImportExpression__Alternatives_0"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1543:1: rule__ImportExpression__Alternatives_0 : ( ( '@import' ) | ( '@IMPORT' ) );
+	public final void rule__ImportExpression__Alternatives_0() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1547:1: ( ( '@import' ) | ( '@IMPORT' ) )
+			int alt3 = 2;
+			int LA3_0 = input.LA(1);
+
+			if ((LA3_0 == 22)) {
+				alt3 = 1;
+			}
+			else if ((LA3_0 == 23)) {
+				alt3 = 2;
+			}
+			else {
+				if (state.backtracking > 0) {
+					state.failed = true;
+					return;
+				}
+				NoViableAltException nvae =
+						new NoViableAltException("", 3, 0, input);
+
+				throw nvae;
+			}
+			switch (alt3) {
+			case 1:
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1548:1: ( '@import' )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1548:1: ( '@import' )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1549:1: '@import'
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getImportExpressionAccess().getImportKeyword_0_0());
+					}
+					match(input, 22, FOLLOW_22_in_rule__ImportExpression__Alternatives_03167);
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getImportExpressionAccess().getImportKeyword_0_0());
+					}
+
+				}
+
+
+			}
+				break;
+			case 2:
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1556:6: ( '@IMPORT' )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1556:6: ( '@IMPORT' )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1557:1: '@IMPORT'
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getImportExpressionAccess().getIMPORTKeyword_0_1());
+					}
+					match(input, 23, FOLLOW_23_in_rule__ImportExpression__Alternatives_03187);
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getImportExpressionAccess().getIMPORTKeyword_0_1());
+					}
+
+				}
+
+
+			}
+				break;
+
+			}
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__ImportExpression__Alternatives_0"
+
+
+	// $ANTLR start "rule__ImportExpression__Alternatives_1"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1569:1: rule__ImportExpression__Alternatives_1 : ( ( ( rule__ImportExpression__ValueAssignment_1_0 ) ) | ( (
+	// rule__ImportExpression__Group_1_1__0 ) ) );
+	public final void rule__ImportExpression__Alternatives_1() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1573:1: ( ( ( rule__ImportExpression__ValueAssignment_1_0 ) ) | ( (
+			// rule__ImportExpression__Group_1_1__0 ) ) )
+			int alt4 = 2;
+			int LA4_0 = input.LA(1);
+
+			if ((LA4_0 == RULE_CSSSTRING)) {
+				alt4 = 1;
+			}
+			else if ((LA4_0 == 64)) {
+				alt4 = 2;
+			}
+			else {
+				if (state.backtracking > 0) {
+					state.failed = true;
+					return;
+				}
+				NoViableAltException nvae =
+						new NoViableAltException("", 4, 0, input);
+
+				throw nvae;
+			}
+			switch (alt4) {
+			case 1:
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1574:1: ( ( rule__ImportExpression__ValueAssignment_1_0 ) )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1574:1: ( ( rule__ImportExpression__ValueAssignment_1_0 ) )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1575:1: ( rule__ImportExpression__ValueAssignment_1_0 )
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getImportExpressionAccess().getValueAssignment_1_0());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1576:1: ( rule__ImportExpression__ValueAssignment_1_0 )
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1576:2: rule__ImportExpression__ValueAssignment_1_0
+					{
+						pushFollow(FOLLOW_rule__ImportExpression__ValueAssignment_1_0_in_rule__ImportExpression__Alternatives_13221);
+						rule__ImportExpression__ValueAssignment_1_0();
+
+						state._fsp--;
+						if (state.failed) {
+							return;
+						}
+
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getImportExpressionAccess().getValueAssignment_1_0());
+					}
+
+				}
+
+
+			}
+				break;
+			case 2:
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1580:6: ( ( rule__ImportExpression__Group_1_1__0 ) )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1580:6: ( ( rule__ImportExpression__Group_1_1__0 ) )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1581:1: ( rule__ImportExpression__Group_1_1__0 )
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getImportExpressionAccess().getGroup_1_1());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1582:1: ( rule__ImportExpression__Group_1_1__0 )
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1582:2: rule__ImportExpression__Group_1_1__0
+					{
+						pushFollow(FOLLOW_rule__ImportExpression__Group_1_1__0_in_rule__ImportExpression__Alternatives_13239);
+						rule__ImportExpression__Group_1_1__0();
+
+						state._fsp--;
+						if (state.failed) {
+							return;
+						}
+
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getImportExpressionAccess().getGroup_1_1());
+					}
+
+				}
+
+
+			}
+				break;
+
+			}
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__ImportExpression__Alternatives_1"
+
+
+	// $ANTLR start "rule__Page__Alternatives_1"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1591:1: rule__Page__Alternatives_1 : ( ( '@page' ) | ( '@PAGE' ) );
+	public final void rule__Page__Alternatives_1() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1595:1: ( ( '@page' ) | ( '@PAGE' ) )
+			int alt5 = 2;
+			int LA5_0 = input.LA(1);
+
+			if ((LA5_0 == 24)) {
+				alt5 = 1;
+			}
+			else if ((LA5_0 == 25)) {
+				alt5 = 2;
+			}
+			else {
+				if (state.backtracking > 0) {
+					state.failed = true;
+					return;
+				}
+				NoViableAltException nvae =
+						new NoViableAltException("", 5, 0, input);
+
+				throw nvae;
+			}
+			switch (alt5) {
+			case 1:
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1596:1: ( '@page' )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1596:1: ( '@page' )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1597:1: '@page'
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getPageAccess().getPageKeyword_1_0());
+					}
+					match(input, 24, FOLLOW_24_in_rule__Page__Alternatives_13273);
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getPageAccess().getPageKeyword_1_0());
+					}
+
+				}
+
+
+			}
+				break;
+			case 2:
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1604:6: ( '@PAGE' )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1604:6: ( '@PAGE' )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1605:1: '@PAGE'
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getPageAccess().getPAGEKeyword_1_1());
+					}
+					match(input, 25, FOLLOW_25_in_rule__Page__Alternatives_13293);
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getPageAccess().getPAGEKeyword_1_1());
+					}
+
+				}
+
+
+			}
+				break;
+
+			}
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Page__Alternatives_1"
+
+
+	// $ANTLR start "rule__Media__Alternatives_0"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1617:1: rule__Media__Alternatives_0 : ( ( '@media' ) | ( '@MEDIA' ) );
+	public final void rule__Media__Alternatives_0() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1621:1: ( ( '@media' ) | ( '@MEDIA' ) )
+			int alt6 = 2;
+			int LA6_0 = input.LA(1);
+
+			if ((LA6_0 == 26)) {
+				alt6 = 1;
+			}
+			else if ((LA6_0 == 27)) {
+				alt6 = 2;
+			}
+			else {
+				if (state.backtracking > 0) {
+					state.failed = true;
+					return;
+				}
+				NoViableAltException nvae =
+						new NoViableAltException("", 6, 0, input);
+
+				throw nvae;
+			}
+			switch (alt6) {
+			case 1:
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1622:1: ( '@media' )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1622:1: ( '@media' )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1623:1: '@media'
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getMediaAccess().getMediaKeyword_0_0());
+					}
+					match(input, 26, FOLLOW_26_in_rule__Media__Alternatives_03328);
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getMediaAccess().getMediaKeyword_0_0());
+					}
+
+				}
+
+
+			}
+				break;
+			case 2:
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1630:6: ( '@MEDIA' )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1630:6: ( '@MEDIA' )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1631:1: '@MEDIA'
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getMediaAccess().getMEDIAKeyword_0_1());
+					}
+					match(input, 27, FOLLOW_27_in_rule__Media__Alternatives_03348);
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getMediaAccess().getMEDIAKeyword_0_1());
+					}
+
+				}
+
+
+			}
+				break;
+
+			}
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Media__Alternatives_0"
+
+
+	// $ANTLR start "rule__Font_face__Alternatives_1"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1643:1: rule__Font_face__Alternatives_1 : ( ( '@font-face' ) | ( '@FONT-FACE' ) );
+	public final void rule__Font_face__Alternatives_1() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1647:1: ( ( '@font-face' ) | ( '@FONT-FACE' ) )
+			int alt7 = 2;
+			int LA7_0 = input.LA(1);
+
+			if ((LA7_0 == 28)) {
+				alt7 = 1;
+			}
+			else if ((LA7_0 == 29)) {
+				alt7 = 2;
+			}
+			else {
+				if (state.backtracking > 0) {
+					state.failed = true;
+					return;
+				}
+				NoViableAltException nvae =
+						new NoViableAltException("", 7, 0, input);
+
+				throw nvae;
+			}
+			switch (alt7) {
+			case 1:
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1648:1: ( '@font-face' )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1648:1: ( '@font-face' )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1649:1: '@font-face'
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getFont_faceAccess().getFontFaceKeyword_1_0());
+					}
+					match(input, 28, FOLLOW_28_in_rule__Font_face__Alternatives_13383);
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getFont_faceAccess().getFontFaceKeyword_1_0());
+					}
+
+				}
+
+
+			}
+				break;
+			case 2:
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1656:6: ( '@FONT-FACE' )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1656:6: ( '@FONT-FACE' )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1657:1: '@FONT-FACE'
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getFont_faceAccess().getFONTFACEKeyword_1_1());
+					}
+					match(input, 29, FOLLOW_29_in_rule__Font_face__Alternatives_13403);
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getFont_faceAccess().getFONTFACEKeyword_1_1());
+					}
+
+				}
+
+
+			}
+				break;
+
+			}
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Font_face__Alternatives_1"
+
+
+	// $ANTLR start "rule__Keyframes__Alternatives_1"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1669:1: rule__Keyframes__Alternatives_1 : ( ( '@keyframes' ) | ( '@KEYFRAMES' ) );
+	public final void rule__Keyframes__Alternatives_1() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1673:1: ( ( '@keyframes' ) | ( '@KEYFRAMES' ) )
+			int alt8 = 2;
+			int LA8_0 = input.LA(1);
+
+			if ((LA8_0 == 30)) {
+				alt8 = 1;
+			}
+			else if ((LA8_0 == 31)) {
+				alt8 = 2;
+			}
+			else {
+				if (state.backtracking > 0) {
+					state.failed = true;
+					return;
+				}
+				NoViableAltException nvae =
+						new NoViableAltException("", 8, 0, input);
+
+				throw nvae;
+			}
+			switch (alt8) {
+			case 1:
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1674:1: ( '@keyframes' )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1674:1: ( '@keyframes' )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1675:1: '@keyframes'
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getKeyframesAccess().getKeyframesKeyword_1_0());
+					}
+					match(input, 30, FOLLOW_30_in_rule__Keyframes__Alternatives_13438);
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getKeyframesAccess().getKeyframesKeyword_1_0());
+					}
+
+				}
+
+
+			}
+				break;
+			case 2:
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1682:6: ( '@KEYFRAMES' )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1682:6: ( '@KEYFRAMES' )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1683:1: '@KEYFRAMES'
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getKeyframesAccess().getKEYFRAMESKeyword_1_1());
+					}
+					match(input, 31, FOLLOW_31_in_rule__Keyframes__Alternatives_13458);
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getKeyframesAccess().getKEYFRAMESKeyword_1_1());
+					}
+
+				}
+
+
+			}
+				break;
+
+			}
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Keyframes__Alternatives_1"
+
+
+	// $ANTLR start "rule__Keyframe_selector__Alternatives_0"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1695:1: rule__Keyframe_selector__Alternatives_0 : ( ( ( rule__Keyframe_selector__TypeAssignment_0_0 ) ) | ( (
+	// rule__Keyframe_selector__Group_0_1__0 ) ) );
+	public final void rule__Keyframe_selector__Alternatives_0() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1699:1: ( ( ( rule__Keyframe_selector__TypeAssignment_0_0 ) ) | ( (
+			// rule__Keyframe_selector__Group_0_1__0 ) ) )
+			int alt9 = 2;
+			switch (input.LA(1)) {
+			case RULE_DASH: {
+				int LA9_1 = input.LA(2);
+
+				if ((LA9_1 == RULE_ONE_INT || LA9_1 == 39)) {
+					alt9 = 2;
+				}
+				else if ((LA9_1 == RULE_UNDERSCORE || (LA9_1 >= RULE_ONE_HEX_LETTER && LA9_1 <= RULE_ONE_NON_HEX_LETTER) || (LA9_1 >= 49 && LA9_1 <= 52))) {
+					alt9 = 1;
+				}
+				else {
+					if (state.backtracking > 0) {
+						state.failed = true;
+						return;
+					}
+					NoViableAltException nvae =
+							new NoViableAltException("", 9, 1, input);
+
+					throw nvae;
+				}
+			}
+				break;
+			case RULE_UNDERSCORE:
+			case RULE_ONE_HEX_LETTER:
+			case RULE_ONE_NON_HEX_LETTER:
+			case 49:
+			case 50:
+			case 51:
+			case 52: {
+				alt9 = 1;
+			}
+				break;
+			case RULE_PLUS:
+			case RULE_ONE_INT:
+			case 39: {
+				alt9 = 2;
+			}
+				break;
+			default:
+				if (state.backtracking > 0) {
+					state.failed = true;
+					return;
+				}
+				NoViableAltException nvae =
+						new NoViableAltException("", 9, 0, input);
+
+				throw nvae;
+			}
+
+			switch (alt9) {
+			case 1:
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1700:1: ( ( rule__Keyframe_selector__TypeAssignment_0_0 ) )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1700:1: ( ( rule__Keyframe_selector__TypeAssignment_0_0 ) )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1701:1: ( rule__Keyframe_selector__TypeAssignment_0_0 )
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getKeyframe_selectorAccess().getTypeAssignment_0_0());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1702:1: ( rule__Keyframe_selector__TypeAssignment_0_0 )
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1702:2: rule__Keyframe_selector__TypeAssignment_0_0
+					{
+						pushFollow(FOLLOW_rule__Keyframe_selector__TypeAssignment_0_0_in_rule__Keyframe_selector__Alternatives_03492);
+						rule__Keyframe_selector__TypeAssignment_0_0();
+
+						state._fsp--;
+						if (state.failed) {
+							return;
+						}
+
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getKeyframe_selectorAccess().getTypeAssignment_0_0());
+					}
+
+				}
+
+
+			}
+				break;
+			case 2:
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1706:6: ( ( rule__Keyframe_selector__Group_0_1__0 ) )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1706:6: ( ( rule__Keyframe_selector__Group_0_1__0 ) )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1707:1: ( rule__Keyframe_selector__Group_0_1__0 )
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getKeyframe_selectorAccess().getGroup_0_1());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1708:1: ( rule__Keyframe_selector__Group_0_1__0 )
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1708:2: rule__Keyframe_selector__Group_0_1__0
+					{
+						pushFollow(FOLLOW_rule__Keyframe_selector__Group_0_1__0_in_rule__Keyframe_selector__Alternatives_03510);
+						rule__Keyframe_selector__Group_0_1__0();
+
+						state._fsp--;
+						if (state.failed) {
+							return;
+						}
+
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getKeyframe_selectorAccess().getGroup_0_1());
+					}
+
+				}
+
+
+			}
+				break;
+
+			}
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Keyframe_selector__Alternatives_0"
+
+
+	// $ANTLR start "rule__Selector__Alternatives_1"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1717:1: rule__Selector__Alternatives_1 : ( ( ( rule__Selector__Group_1_0__0 ) ) | ( (
+	// rule__Selector__Group_1_1__0 ) ) );
+	public final void rule__Selector__Alternatives_1() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1721:1: ( ( ( rule__Selector__Group_1_0__0 ) ) | ( ( rule__Selector__Group_1_1__0 ) ) )
+			int alt10 = 2;
+			int LA10_0 = input.LA(1);
+
+			if ((LA10_0 == RULE_PLUS || (LA10_0 >= 37 && LA10_0 <= 38))) {
+				alt10 = 1;
+			}
+			else if ((LA10_0 == RULE_WS)) {
+				alt10 = 2;
+			}
+			else {
+				if (state.backtracking > 0) {
+					state.failed = true;
+					return;
+				}
+				NoViableAltException nvae =
+						new NoViableAltException("", 10, 0, input);
+
+				throw nvae;
+			}
+			switch (alt10) {
+			case 1:
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1722:1: ( ( rule__Selector__Group_1_0__0 ) )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1722:1: ( ( rule__Selector__Group_1_0__0 ) )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1723:1: ( rule__Selector__Group_1_0__0 )
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getSelectorAccess().getGroup_1_0());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1724:1: ( rule__Selector__Group_1_0__0 )
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1724:2: rule__Selector__Group_1_0__0
+					{
+						pushFollow(FOLLOW_rule__Selector__Group_1_0__0_in_rule__Selector__Alternatives_13543);
+						rule__Selector__Group_1_0__0();
+
+						state._fsp--;
+						if (state.failed) {
+							return;
+						}
+
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getSelectorAccess().getGroup_1_0());
+					}
+
+				}
+
+
+			}
+				break;
+			case 2:
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1728:6: ( ( rule__Selector__Group_1_1__0 ) )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1728:6: ( ( rule__Selector__Group_1_1__0 ) )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1729:1: ( rule__Selector__Group_1_1__0 )
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getSelectorAccess().getGroup_1_1());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1730:1: ( rule__Selector__Group_1_1__0 )
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1730:2: rule__Selector__Group_1_1__0
+					{
+						pushFollow(FOLLOW_rule__Selector__Group_1_1__0_in_rule__Selector__Alternatives_13561);
+						rule__Selector__Group_1_1__0();
+
+						state._fsp--;
+						if (state.failed) {
+							return;
+						}
+
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getSelectorAccess().getGroup_1_1());
+					}
+
+				}
+
+
+			}
+				break;
+
+			}
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Selector__Alternatives_1"
+
+
+	// $ANTLR start "rule__SimpleSelectorForNegation__Alternatives"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1739:1: rule__SimpleSelectorForNegation__Alternatives : ( ( ( rule__SimpleSelectorForNegation__Group_0__0 ) )
+	// | ( ( ( rule__SimpleSelectorForNegation__SubSelectorsAssignment_1 ) ) ( ( rule__SimpleSelectorForNegation__SubSelectorsAssignment_1 )* ) ) );
+	public final void rule__SimpleSelectorForNegation__Alternatives() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1743:1: ( ( ( rule__SimpleSelectorForNegation__Group_0__0 ) ) | ( ( (
+			// rule__SimpleSelectorForNegation__SubSelectorsAssignment_1 ) ) ( ( rule__SimpleSelectorForNegation__SubSelectorsAssignment_1 )* ) ) )
+			int alt12 = 2;
+			int LA12_0 = input.LA(1);
+
+			if (((LA12_0 >= RULE_DASH && LA12_0 <= RULE_UNDERSCORE) || (LA12_0 >= RULE_ONE_HEX_LETTER && LA12_0 <= RULE_ONE_NON_HEX_LETTER) || LA12_0 == 36 || (LA12_0 >= 49 && LA12_0 <= 52) || LA12_0 == 60)) {
+				alt12 = 1;
+			}
+			else if (((LA12_0 >= RULE_COLON && LA12_0 <= RULE_HASHMARK) || LA12_0 == 39 || LA12_0 == 42)) {
+				alt12 = 2;
+			}
+			else {
+				if (state.backtracking > 0) {
+					state.failed = true;
+					return;
+				}
+				NoViableAltException nvae =
+						new NoViableAltException("", 12, 0, input);
+
+				throw nvae;
+			}
+			switch (alt12) {
+			case 1:
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1744:1: ( ( rule__SimpleSelectorForNegation__Group_0__0 ) )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1744:1: ( ( rule__SimpleSelectorForNegation__Group_0__0 ) )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1745:1: ( rule__SimpleSelectorForNegation__Group_0__0 )
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getSimpleSelectorForNegationAccess().getGroup_0());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1746:1: ( rule__SimpleSelectorForNegation__Group_0__0 )
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1746:2: rule__SimpleSelectorForNegation__Group_0__0
+					{
+						pushFollow(FOLLOW_rule__SimpleSelectorForNegation__Group_0__0_in_rule__SimpleSelectorForNegation__Alternatives3594);
+						rule__SimpleSelectorForNegation__Group_0__0();
+
+						state._fsp--;
+						if (state.failed) {
+							return;
+						}
+
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getSimpleSelectorForNegationAccess().getGroup_0());
+					}
+
+				}
+
+
+			}
+				break;
+			case 2:
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1750:6: ( ( ( rule__SimpleSelectorForNegation__SubSelectorsAssignment_1 ) ) ( (
+			// rule__SimpleSelectorForNegation__SubSelectorsAssignment_1 )* ) )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1750:6: ( ( ( rule__SimpleSelectorForNegation__SubSelectorsAssignment_1 ) ) ( (
+				// rule__SimpleSelectorForNegation__SubSelectorsAssignment_1 )* ) )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1751:1: ( ( rule__SimpleSelectorForNegation__SubSelectorsAssignment_1 ) ) ( (
+				// rule__SimpleSelectorForNegation__SubSelectorsAssignment_1 )* )
+				{
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1751:1: ( ( rule__SimpleSelectorForNegation__SubSelectorsAssignment_1 ) )
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1752:1: ( rule__SimpleSelectorForNegation__SubSelectorsAssignment_1 )
+					{
+						if (state.backtracking == 0) {
+							before(grammarAccess.getSimpleSelectorForNegationAccess().getSubSelectorsAssignment_1());
+						}
+						// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1753:1: ( rule__SimpleSelectorForNegation__SubSelectorsAssignment_1 )
+						// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1753:2: rule__SimpleSelectorForNegation__SubSelectorsAssignment_1
+						{
+							pushFollow(FOLLOW_rule__SimpleSelectorForNegation__SubSelectorsAssignment_1_in_rule__SimpleSelectorForNegation__Alternatives3614);
+							rule__SimpleSelectorForNegation__SubSelectorsAssignment_1();
+
+							state._fsp--;
+							if (state.failed) {
+								return;
+							}
+
+						}
+
+						if (state.backtracking == 0) {
+							after(grammarAccess.getSimpleSelectorForNegationAccess().getSubSelectorsAssignment_1());
+						}
+
+					}
+
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1756:1: ( ( rule__SimpleSelectorForNegation__SubSelectorsAssignment_1 )* )
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1757:1: ( rule__SimpleSelectorForNegation__SubSelectorsAssignment_1 )*
+					{
+						if (state.backtracking == 0) {
+							before(grammarAccess.getSimpleSelectorForNegationAccess().getSubSelectorsAssignment_1());
+						}
+						// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1758:1: ( rule__SimpleSelectorForNegation__SubSelectorsAssignment_1 )*
+						loop11: do {
+							int alt11 = 2;
+							int LA11_0 = input.LA(1);
+
+							if (((LA11_0 >= RULE_COLON && LA11_0 <= RULE_HASHMARK) || LA11_0 == 39 || LA11_0 == 42)) {
+								alt11 = 1;
+							}
+
+
+							switch (alt11) {
+							case 1:
+							// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1758:2: rule__SimpleSelectorForNegation__SubSelectorsAssignment_1
+							{
+								pushFollow(FOLLOW_rule__SimpleSelectorForNegation__SubSelectorsAssignment_1_in_rule__SimpleSelectorForNegation__Alternatives3626);
+								rule__SimpleSelectorForNegation__SubSelectorsAssignment_1();
+
+								state._fsp--;
+								if (state.failed) {
+									return;
+								}
+
+							}
+								break;
+
+							default:
+								break loop11;
+							}
+						} while (true);
+
+						if (state.backtracking == 0) {
+							after(grammarAccess.getSimpleSelectorForNegationAccess().getSubSelectorsAssignment_1());
+						}
+
+					}
+
+
+				}
+
+
+			}
+				break;
+
+			}
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__SimpleSelectorForNegation__Alternatives"
+
+
+	// $ANTLR start "rule__SimpleSelectorForNegation__Alternatives_0_0"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1768:1: rule__SimpleSelectorForNegation__Alternatives_0_0 : ( ( (
+	// rule__SimpleSelectorForNegation__ElementAssignment_0_0_0 ) ) | ( ( rule__SimpleSelectorForNegation__UniversalAssignment_0_0_1 ) ) );
+	public final void rule__SimpleSelectorForNegation__Alternatives_0_0() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1772:1: ( ( ( rule__SimpleSelectorForNegation__ElementAssignment_0_0_0 ) ) | ( (
+			// rule__SimpleSelectorForNegation__UniversalAssignment_0_0_1 ) ) )
+			int alt13 = 2;
+			alt13 = dfa13.predict(input);
+			switch (alt13) {
+			case 1:
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1773:1: ( ( rule__SimpleSelectorForNegation__ElementAssignment_0_0_0 ) )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1773:1: ( ( rule__SimpleSelectorForNegation__ElementAssignment_0_0_0 ) )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1774:1: ( rule__SimpleSelectorForNegation__ElementAssignment_0_0_0 )
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getSimpleSelectorForNegationAccess().getElementAssignment_0_0_0());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1775:1: ( rule__SimpleSelectorForNegation__ElementAssignment_0_0_0 )
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1775:2: rule__SimpleSelectorForNegation__ElementAssignment_0_0_0
+					{
+						pushFollow(FOLLOW_rule__SimpleSelectorForNegation__ElementAssignment_0_0_0_in_rule__SimpleSelectorForNegation__Alternatives_0_03662);
+						rule__SimpleSelectorForNegation__ElementAssignment_0_0_0();
+
+						state._fsp--;
+						if (state.failed) {
+							return;
+						}
+
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getSimpleSelectorForNegationAccess().getElementAssignment_0_0_0());
+					}
+
+				}
+
+
+			}
+				break;
+			case 2:
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1779:6: ( ( rule__SimpleSelectorForNegation__UniversalAssignment_0_0_1 ) )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1779:6: ( ( rule__SimpleSelectorForNegation__UniversalAssignment_0_0_1 ) )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1780:1: ( rule__SimpleSelectorForNegation__UniversalAssignment_0_0_1 )
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getSimpleSelectorForNegationAccess().getUniversalAssignment_0_0_1());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1781:1: ( rule__SimpleSelectorForNegation__UniversalAssignment_0_0_1 )
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1781:2: rule__SimpleSelectorForNegation__UniversalAssignment_0_0_1
+					{
+						pushFollow(FOLLOW_rule__SimpleSelectorForNegation__UniversalAssignment_0_0_1_in_rule__SimpleSelectorForNegation__Alternatives_0_03680);
+						rule__SimpleSelectorForNegation__UniversalAssignment_0_0_1();
+
+						state._fsp--;
+						if (state.failed) {
+							return;
+						}
+
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getSimpleSelectorForNegationAccess().getUniversalAssignment_0_0_1());
+					}
+
+				}
+
+
+			}
+				break;
+
+			}
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__SimpleSelectorForNegation__Alternatives_0_0"
+
+
+	// $ANTLR start "rule__SubSelectorForNegation__Alternatives"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1790:1: rule__SubSelectorForNegation__Alternatives : ( ( ruleIdSelector ) | ( ruleClassSelector ) | (
+	// ruleAttributeSelector ) | ( rulePseudoClass ) );
+	public final void rule__SubSelectorForNegation__Alternatives() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1794:1: ( ( ruleIdSelector ) | ( ruleClassSelector ) | ( ruleAttributeSelector ) | ( rulePseudoClass
+			// ) )
+			int alt14 = 4;
+			switch (input.LA(1)) {
+			case RULE_HASHMARK: {
+				alt14 = 1;
+			}
+				break;
+			case 39: {
+				alt14 = 2;
+			}
+				break;
+			case 42: {
+				alt14 = 3;
+			}
+				break;
+			case RULE_COLON: {
+				alt14 = 4;
+			}
+				break;
+			default:
+				if (state.backtracking > 0) {
+					state.failed = true;
+					return;
+				}
+				NoViableAltException nvae =
+						new NoViableAltException("", 14, 0, input);
+
+				throw nvae;
+			}
+
+			switch (alt14) {
+			case 1:
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1795:1: ( ruleIdSelector )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1795:1: ( ruleIdSelector )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1796:1: ruleIdSelector
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getSubSelectorForNegationAccess().getIdSelectorParserRuleCall_0());
+					}
+					pushFollow(FOLLOW_ruleIdSelector_in_rule__SubSelectorForNegation__Alternatives3713);
+					ruleIdSelector();
+
+					state._fsp--;
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getSubSelectorForNegationAccess().getIdSelectorParserRuleCall_0());
+					}
+
+				}
+
+
+			}
+				break;
+			case 2:
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1801:6: ( ruleClassSelector )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1801:6: ( ruleClassSelector )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1802:1: ruleClassSelector
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getSubSelectorForNegationAccess().getClassSelectorParserRuleCall_1());
+					}
+					pushFollow(FOLLOW_ruleClassSelector_in_rule__SubSelectorForNegation__Alternatives3730);
+					ruleClassSelector();
+
+					state._fsp--;
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getSubSelectorForNegationAccess().getClassSelectorParserRuleCall_1());
+					}
+
+				}
+
+
+			}
+				break;
+			case 3:
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1807:6: ( ruleAttributeSelector )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1807:6: ( ruleAttributeSelector )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1808:1: ruleAttributeSelector
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getSubSelectorForNegationAccess().getAttributeSelectorParserRuleCall_2());
+					}
+					pushFollow(FOLLOW_ruleAttributeSelector_in_rule__SubSelectorForNegation__Alternatives3747);
+					ruleAttributeSelector();
+
+					state._fsp--;
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getSubSelectorForNegationAccess().getAttributeSelectorParserRuleCall_2());
+					}
+
+				}
+
+
+			}
+				break;
+			case 4:
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1813:6: ( rulePseudoClass )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1813:6: ( rulePseudoClass )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1814:1: rulePseudoClass
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getSubSelectorForNegationAccess().getPseudoClassParserRuleCall_3());
+					}
+					pushFollow(FOLLOW_rulePseudoClass_in_rule__SubSelectorForNegation__Alternatives3764);
+					rulePseudoClass();
+
+					state._fsp--;
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getSubSelectorForNegationAccess().getPseudoClassParserRuleCall_3());
+					}
+
+				}
+
+
+			}
+				break;
+
+			}
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__SubSelectorForNegation__Alternatives"
+
+
+	// $ANTLR start "rule__Simple_selector__Alternatives"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1824:1: rule__Simple_selector__Alternatives : ( ( ( rule__Simple_selector__Group_0__0 ) ) | ( ( (
+	// rule__Simple_selector__SubSelectorsAssignment_1 ) ) ( ( rule__Simple_selector__SubSelectorsAssignment_1 )* ) ) );
+	public final void rule__Simple_selector__Alternatives() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1828:1: ( ( ( rule__Simple_selector__Group_0__0 ) ) | ( ( (
+			// rule__Simple_selector__SubSelectorsAssignment_1 ) ) ( ( rule__Simple_selector__SubSelectorsAssignment_1 )* ) ) )
+			int alt16 = 2;
+			int LA16_0 = input.LA(1);
+
+			if (((LA16_0 >= RULE_DASH && LA16_0 <= RULE_UNDERSCORE) || (LA16_0 >= RULE_ONE_HEX_LETTER && LA16_0 <= RULE_ONE_NON_HEX_LETTER) || LA16_0 == 36 || (LA16_0 >= 49 && LA16_0 <= 52) || LA16_0 == 60)) {
+				alt16 = 1;
+			}
+			else if (((LA16_0 >= RULE_COLON && LA16_0 <= RULE_HASHMARK) || LA16_0 == 39 || LA16_0 == 42)) {
+				alt16 = 2;
+			}
+			else {
+				if (state.backtracking > 0) {
+					state.failed = true;
+					return;
+				}
+				NoViableAltException nvae =
+						new NoViableAltException("", 16, 0, input);
+
+				throw nvae;
+			}
+			switch (alt16) {
+			case 1:
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1829:1: ( ( rule__Simple_selector__Group_0__0 ) )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1829:1: ( ( rule__Simple_selector__Group_0__0 ) )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1830:1: ( rule__Simple_selector__Group_0__0 )
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getSimple_selectorAccess().getGroup_0());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1831:1: ( rule__Simple_selector__Group_0__0 )
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1831:2: rule__Simple_selector__Group_0__0
+					{
+						pushFollow(FOLLOW_rule__Simple_selector__Group_0__0_in_rule__Simple_selector__Alternatives3796);
+						rule__Simple_selector__Group_0__0();
+
+						state._fsp--;
+						if (state.failed) {
+							return;
+						}
+
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getSimple_selectorAccess().getGroup_0());
+					}
+
+				}
+
+
+			}
+				break;
+			case 2:
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1835:6: ( ( ( rule__Simple_selector__SubSelectorsAssignment_1 ) ) ( (
+			// rule__Simple_selector__SubSelectorsAssignment_1 )* ) )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1835:6: ( ( ( rule__Simple_selector__SubSelectorsAssignment_1 ) ) ( (
+				// rule__Simple_selector__SubSelectorsAssignment_1 )* ) )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1836:1: ( ( rule__Simple_selector__SubSelectorsAssignment_1 ) ) ( (
+				// rule__Simple_selector__SubSelectorsAssignment_1 )* )
+				{
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1836:1: ( ( rule__Simple_selector__SubSelectorsAssignment_1 ) )
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1837:1: ( rule__Simple_selector__SubSelectorsAssignment_1 )
+					{
+						if (state.backtracking == 0) {
+							before(grammarAccess.getSimple_selectorAccess().getSubSelectorsAssignment_1());
+						}
+						// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1838:1: ( rule__Simple_selector__SubSelectorsAssignment_1 )
+						// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1838:2: rule__Simple_selector__SubSelectorsAssignment_1
+						{
+							pushFollow(FOLLOW_rule__Simple_selector__SubSelectorsAssignment_1_in_rule__Simple_selector__Alternatives3816);
+							rule__Simple_selector__SubSelectorsAssignment_1();
+
+							state._fsp--;
+							if (state.failed) {
+								return;
+							}
+
+						}
+
+						if (state.backtracking == 0) {
+							after(grammarAccess.getSimple_selectorAccess().getSubSelectorsAssignment_1());
+						}
+
+					}
+
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1841:1: ( ( rule__Simple_selector__SubSelectorsAssignment_1 )* )
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1842:1: ( rule__Simple_selector__SubSelectorsAssignment_1 )*
+					{
+						if (state.backtracking == 0) {
+							before(grammarAccess.getSimple_selectorAccess().getSubSelectorsAssignment_1());
+						}
+						// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1843:1: ( rule__Simple_selector__SubSelectorsAssignment_1 )*
+						loop15: do {
+							int alt15 = 2;
+							int LA15_0 = input.LA(1);
+
+							if (((LA15_0 >= RULE_COLON && LA15_0 <= RULE_HASHMARK) || LA15_0 == 39 || LA15_0 == 42)) {
+								alt15 = 1;
+							}
+
+
+							switch (alt15) {
+							case 1:
+							// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1843:2: rule__Simple_selector__SubSelectorsAssignment_1
+							{
+								pushFollow(FOLLOW_rule__Simple_selector__SubSelectorsAssignment_1_in_rule__Simple_selector__Alternatives3828);
+								rule__Simple_selector__SubSelectorsAssignment_1();
+
+								state._fsp--;
+								if (state.failed) {
+									return;
+								}
+
+							}
+								break;
+
+							default:
+								break loop15;
+							}
+						} while (true);
+
+						if (state.backtracking == 0) {
+							after(grammarAccess.getSimple_selectorAccess().getSubSelectorsAssignment_1());
+						}
+
+					}
+
+
+				}
+
+
+			}
+				break;
+
+			}
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Simple_selector__Alternatives"
+
+
+	// $ANTLR start "rule__Simple_selector__Alternatives_0_0"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1853:1: rule__Simple_selector__Alternatives_0_0 : ( ( ( rule__Simple_selector__ElementAssignment_0_0_0 ) ) |
+	// ( ( rule__Simple_selector__UniversalAssignment_0_0_1 ) ) );
+	public final void rule__Simple_selector__Alternatives_0_0() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1857:1: ( ( ( rule__Simple_selector__ElementAssignment_0_0_0 ) ) | ( (
+			// rule__Simple_selector__UniversalAssignment_0_0_1 ) ) )
+			int alt17 = 2;
+			alt17 = dfa17.predict(input);
+			switch (alt17) {
+			case 1:
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1858:1: ( ( rule__Simple_selector__ElementAssignment_0_0_0 ) )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1858:1: ( ( rule__Simple_selector__ElementAssignment_0_0_0 ) )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1859:1: ( rule__Simple_selector__ElementAssignment_0_0_0 )
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getSimple_selectorAccess().getElementAssignment_0_0_0());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1860:1: ( rule__Simple_selector__ElementAssignment_0_0_0 )
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1860:2: rule__Simple_selector__ElementAssignment_0_0_0
+					{
+						pushFollow(FOLLOW_rule__Simple_selector__ElementAssignment_0_0_0_in_rule__Simple_selector__Alternatives_0_03864);
+						rule__Simple_selector__ElementAssignment_0_0_0();
+
+						state._fsp--;
+						if (state.failed) {
+							return;
+						}
+
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getSimple_selectorAccess().getElementAssignment_0_0_0());
+					}
+
+				}
+
+
+			}
+				break;
+			case 2:
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1864:6: ( ( rule__Simple_selector__UniversalAssignment_0_0_1 ) )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1864:6: ( ( rule__Simple_selector__UniversalAssignment_0_0_1 ) )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1865:1: ( rule__Simple_selector__UniversalAssignment_0_0_1 )
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getSimple_selectorAccess().getUniversalAssignment_0_0_1());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1866:1: ( rule__Simple_selector__UniversalAssignment_0_0_1 )
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1866:2: rule__Simple_selector__UniversalAssignment_0_0_1
+					{
+						pushFollow(FOLLOW_rule__Simple_selector__UniversalAssignment_0_0_1_in_rule__Simple_selector__Alternatives_0_03882);
+						rule__Simple_selector__UniversalAssignment_0_0_1();
+
+						state._fsp--;
+						if (state.failed) {
+							return;
+						}
+
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getSimple_selectorAccess().getUniversalAssignment_0_0_1());
+					}
+
+				}
+
+
+			}
+				break;
+
+			}
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Simple_selector__Alternatives_0_0"
+
+
+	// $ANTLR start "rule__SubSelector__Alternatives"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1875:1: rule__SubSelector__Alternatives : ( ( ruleIdSelector ) | ( ruleClassSelector ) | (
+	// ruleAttributeSelector ) | ( rulePseudoClassOrFunc ) );
+	public final void rule__SubSelector__Alternatives() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1879:1: ( ( ruleIdSelector ) | ( ruleClassSelector ) | ( ruleAttributeSelector ) | (
+			// rulePseudoClassOrFunc ) )
+			int alt18 = 4;
+			switch (input.LA(1)) {
+			case RULE_HASHMARK: {
+				alt18 = 1;
+			}
+				break;
+			case 39: {
+				alt18 = 2;
+			}
+				break;
+			case 42: {
+				alt18 = 3;
+			}
+				break;
+			case RULE_COLON: {
+				alt18 = 4;
+			}
+				break;
+			default:
+				if (state.backtracking > 0) {
+					state.failed = true;
+					return;
+				}
+				NoViableAltException nvae =
+						new NoViableAltException("", 18, 0, input);
+
+				throw nvae;
+			}
+
+			switch (alt18) {
+			case 1:
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1880:1: ( ruleIdSelector )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1880:1: ( ruleIdSelector )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1881:1: ruleIdSelector
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getSubSelectorAccess().getIdSelectorParserRuleCall_0());
+					}
+					pushFollow(FOLLOW_ruleIdSelector_in_rule__SubSelector__Alternatives3915);
+					ruleIdSelector();
+
+					state._fsp--;
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getSubSelectorAccess().getIdSelectorParserRuleCall_0());
+					}
+
+				}
+
+
+			}
+				break;
+			case 2:
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1886:6: ( ruleClassSelector )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1886:6: ( ruleClassSelector )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1887:1: ruleClassSelector
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getSubSelectorAccess().getClassSelectorParserRuleCall_1());
+					}
+					pushFollow(FOLLOW_ruleClassSelector_in_rule__SubSelector__Alternatives3932);
+					ruleClassSelector();
+
+					state._fsp--;
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getSubSelectorAccess().getClassSelectorParserRuleCall_1());
+					}
+
+				}
+
+
+			}
+				break;
+			case 3:
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1892:6: ( ruleAttributeSelector )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1892:6: ( ruleAttributeSelector )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1893:1: ruleAttributeSelector
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getSubSelectorAccess().getAttributeSelectorParserRuleCall_2());
+					}
+					pushFollow(FOLLOW_ruleAttributeSelector_in_rule__SubSelector__Alternatives3949);
+					ruleAttributeSelector();
+
+					state._fsp--;
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getSubSelectorAccess().getAttributeSelectorParserRuleCall_2());
+					}
+
+				}
+
+
+			}
+				break;
+			case 4:
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1898:6: ( rulePseudoClassOrFunc )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1898:6: ( rulePseudoClassOrFunc )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1899:1: rulePseudoClassOrFunc
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getSubSelectorAccess().getPseudoClassOrFuncParserRuleCall_3());
+					}
+					pushFollow(FOLLOW_rulePseudoClassOrFunc_in_rule__SubSelector__Alternatives3966);
+					rulePseudoClassOrFunc();
+
+					state._fsp--;
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getSubSelectorAccess().getPseudoClassOrFuncParserRuleCall_3());
+					}
+
+				}
+
+
+			}
+				break;
+
+			}
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__SubSelector__Alternatives"
+
+
+	// $ANTLR start "rule__AttributeSelector__OpAlternatives_3_0_0"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1909:1: rule__AttributeSelector__OpAlternatives_3_0_0 : ( ( '^=' ) | ( '$=' ) | ( '*=' ) | ( '=' ) | (
+	// RULE_INCLUDES ) | ( RULE_DASHMATCH ) );
+	public final void rule__AttributeSelector__OpAlternatives_3_0_0() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1913:1: ( ( '^=' ) | ( '$=' ) | ( '*=' ) | ( '=' ) | ( RULE_INCLUDES ) | ( RULE_DASHMATCH ) )
+			int alt19 = 6;
+			switch (input.LA(1)) {
+			case 32: {
+				alt19 = 1;
+			}
+				break;
+			case 33: {
+				alt19 = 2;
+			}
+				break;
+			case 34: {
+				alt19 = 3;
+			}
+				break;
+			case 35: {
+				alt19 = 4;
+			}
+				break;
+			case RULE_INCLUDES: {
+				alt19 = 5;
+			}
+				break;
+			case RULE_DASHMATCH: {
+				alt19 = 6;
+			}
+				break;
+			default:
+				if (state.backtracking > 0) {
+					state.failed = true;
+					return;
+				}
+				NoViableAltException nvae =
+						new NoViableAltException("", 19, 0, input);
+
+				throw nvae;
+			}
+
+			switch (alt19) {
+			case 1:
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1914:1: ( '^=' )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1914:1: ( '^=' )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1915:1: '^='
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getAttributeSelectorAccess().getOpCircumflexAccentEqualsSignKeyword_3_0_0_0());
+					}
+					match(input, 32, FOLLOW_32_in_rule__AttributeSelector__OpAlternatives_3_0_03999);
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getAttributeSelectorAccess().getOpCircumflexAccentEqualsSignKeyword_3_0_0_0());
+					}
+
+				}
+
+
+			}
+				break;
+			case 2:
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1922:6: ( '$=' )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1922:6: ( '$=' )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1923:1: '$='
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getAttributeSelectorAccess().getOpDollarSignEqualsSignKeyword_3_0_0_1());
+					}
+					match(input, 33, FOLLOW_33_in_rule__AttributeSelector__OpAlternatives_3_0_04019);
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getAttributeSelectorAccess().getOpDollarSignEqualsSignKeyword_3_0_0_1());
+					}
+
+				}
+
+
+			}
+				break;
+			case 3:
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1930:6: ( '*=' )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1930:6: ( '*=' )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1931:1: '*='
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getAttributeSelectorAccess().getOpAsteriskEqualsSignKeyword_3_0_0_2());
+					}
+					match(input, 34, FOLLOW_34_in_rule__AttributeSelector__OpAlternatives_3_0_04039);
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getAttributeSelectorAccess().getOpAsteriskEqualsSignKeyword_3_0_0_2());
+					}
+
+				}
+
+
+			}
+				break;
+			case 4:
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1938:6: ( '=' )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1938:6: ( '=' )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1939:1: '='
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getAttributeSelectorAccess().getOpEqualsSignKeyword_3_0_0_3());
+					}
+					match(input, 35, FOLLOW_35_in_rule__AttributeSelector__OpAlternatives_3_0_04059);
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getAttributeSelectorAccess().getOpEqualsSignKeyword_3_0_0_3());
+					}
+
+				}
+
+
+			}
+				break;
+			case 5:
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1946:6: ( RULE_INCLUDES )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1946:6: ( RULE_INCLUDES )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1947:1: RULE_INCLUDES
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getAttributeSelectorAccess().getOpINCLUDESTerminalRuleCall_3_0_0_4());
+					}
+					match(input, RULE_INCLUDES, FOLLOW_RULE_INCLUDES_in_rule__AttributeSelector__OpAlternatives_3_0_04078);
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getAttributeSelectorAccess().getOpINCLUDESTerminalRuleCall_3_0_0_4());
+					}
+
+				}
+
+
+			}
+				break;
+			case 6:
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1952:6: ( RULE_DASHMATCH )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1952:6: ( RULE_DASHMATCH )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1953:1: RULE_DASHMATCH
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getAttributeSelectorAccess().getOpDASHMATCHTerminalRuleCall_3_0_0_5());
+					}
+					match(input, RULE_DASHMATCH, FOLLOW_RULE_DASHMATCH_in_rule__AttributeSelector__OpAlternatives_3_0_04095);
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getAttributeSelectorAccess().getOpDASHMATCHTerminalRuleCall_3_0_0_5());
+					}
+
+				}
+
+
+			}
+				break;
+
+			}
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__AttributeSelector__OpAlternatives_3_0_0"
+
+
+	// $ANTLR start "rule__AttributeSelector__ValueAlternatives_3_1_0"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1963:1: rule__AttributeSelector__ValueAlternatives_3_1_0 : ( ( ruleIdentifier ) | ( RULE_CSSSTRING ) );
+	public final void rule__AttributeSelector__ValueAlternatives_3_1_0() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1967:1: ( ( ruleIdentifier ) | ( RULE_CSSSTRING ) )
+			int alt20 = 2;
+			int LA20_0 = input.LA(1);
+
+			if (((LA20_0 >= RULE_DASH && LA20_0 <= RULE_UNDERSCORE) || (LA20_0 >= RULE_ONE_HEX_LETTER && LA20_0 <= RULE_ONE_NON_HEX_LETTER) || (LA20_0 >= 49 && LA20_0 <= 52))) {
+				alt20 = 1;
+			}
+			else if ((LA20_0 == RULE_CSSSTRING)) {
+				alt20 = 2;
+			}
+			else {
+				if (state.backtracking > 0) {
+					state.failed = true;
+					return;
+				}
+				NoViableAltException nvae =
+						new NoViableAltException("", 20, 0, input);
+
+				throw nvae;
+			}
+			switch (alt20) {
+			case 1:
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1968:1: ( ruleIdentifier )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1968:1: ( ruleIdentifier )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1969:1: ruleIdentifier
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getAttributeSelectorAccess().getValueIdentifierParserRuleCall_3_1_0_0());
+					}
+					pushFollow(FOLLOW_ruleIdentifier_in_rule__AttributeSelector__ValueAlternatives_3_1_04127);
+					ruleIdentifier();
+
+					state._fsp--;
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getAttributeSelectorAccess().getValueIdentifierParserRuleCall_3_1_0_0());
+					}
+
+				}
+
+
+			}
+				break;
+			case 2:
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1974:6: ( RULE_CSSSTRING )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1974:6: ( RULE_CSSSTRING )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1975:1: RULE_CSSSTRING
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getAttributeSelectorAccess().getValueCSSSTRINGTerminalRuleCall_3_1_0_1());
+					}
+					match(input, RULE_CSSSTRING, FOLLOW_RULE_CSSSTRING_in_rule__AttributeSelector__ValueAlternatives_3_1_04144);
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getAttributeSelectorAccess().getValueCSSSTRINGTerminalRuleCall_3_1_0_1());
+					}
+
+				}
+
+
+			}
+				break;
+
+			}
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__AttributeSelector__ValueAlternatives_3_1_0"
+
+
+	// $ANTLR start "rule__Css_namespace_prefix__Alternatives_0"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1985:1: rule__Css_namespace_prefix__Alternatives_0 : ( ( ruleIdentifier ) | ( '*' ) );
+	public final void rule__Css_namespace_prefix__Alternatives_0() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1989:1: ( ( ruleIdentifier ) | ( '*' ) )
+			int alt21 = 2;
+			int LA21_0 = input.LA(1);
+
+			if (((LA21_0 >= RULE_DASH && LA21_0 <= RULE_UNDERSCORE) || (LA21_0 >= RULE_ONE_HEX_LETTER && LA21_0 <= RULE_ONE_NON_HEX_LETTER) || (LA21_0 >= 49 && LA21_0 <= 52))) {
+				alt21 = 1;
+			}
+			else if ((LA21_0 == 36)) {
+				alt21 = 2;
+			}
+			else {
+				if (state.backtracking > 0) {
+					state.failed = true;
+					return;
+				}
+				NoViableAltException nvae =
+						new NoViableAltException("", 21, 0, input);
+
+				throw nvae;
+			}
+			switch (alt21) {
+			case 1:
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1990:1: ( ruleIdentifier )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1990:1: ( ruleIdentifier )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1991:1: ruleIdentifier
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getCss_namespace_prefixAccess().getIdentifierParserRuleCall_0_0());
+					}
+					pushFollow(FOLLOW_ruleIdentifier_in_rule__Css_namespace_prefix__Alternatives_04176);
+					ruleIdentifier();
+
+					state._fsp--;
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getCss_namespace_prefixAccess().getIdentifierParserRuleCall_0_0());
+					}
+
+				}
+
+
+			}
+				break;
+			case 2:
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1996:6: ( '*' )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1996:6: ( '*' )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:1997:1: '*'
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getCss_namespace_prefixAccess().getAsteriskKeyword_0_1());
+					}
+					match(input, 36, FOLLOW_36_in_rule__Css_namespace_prefix__Alternatives_04194);
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getCss_namespace_prefixAccess().getAsteriskKeyword_0_1());
+					}
+
+				}
+
+
+			}
+				break;
+
+			}
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Css_namespace_prefix__Alternatives_0"
+
+
+	// $ANTLR start "rule__PseudoClassOrFunc__Alternatives"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2009:1: rule__PseudoClassOrFunc__Alternatives : ( ( rulePseudoClass ) | ( rulePseudoClassFunction ) );
+	public final void rule__PseudoClassOrFunc__Alternatives() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2013:1: ( ( rulePseudoClass ) | ( rulePseudoClassFunction ) )
+			int alt22 = 2;
+			alt22 = dfa22.predict(input);
+			switch (alt22) {
+			case 1:
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2014:1: ( rulePseudoClass )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2014:1: ( rulePseudoClass )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2015:1: rulePseudoClass
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getPseudoClassOrFuncAccess().getPseudoClassParserRuleCall_0());
+					}
+					pushFollow(FOLLOW_rulePseudoClass_in_rule__PseudoClassOrFunc__Alternatives4228);
+					rulePseudoClass();
+
+					state._fsp--;
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getPseudoClassOrFuncAccess().getPseudoClassParserRuleCall_0());
+					}
+
+				}
+
+
+			}
+				break;
+			case 2:
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2020:6: ( rulePseudoClassFunction )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2020:6: ( rulePseudoClassFunction )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2021:1: rulePseudoClassFunction
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getPseudoClassOrFuncAccess().getPseudoClassFunctionParserRuleCall_1());
+					}
+					pushFollow(FOLLOW_rulePseudoClassFunction_in_rule__PseudoClassOrFunc__Alternatives4245);
+					rulePseudoClassFunction();
+
+					state._fsp--;
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getPseudoClassOrFuncAccess().getPseudoClassFunctionParserRuleCall_1());
+					}
+
+				}
+
+
+			}
+				break;
+
+			}
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__PseudoClassOrFunc__Alternatives"
+
+
+	// $ANTLR start "rule__PseudoClassFunction__Alternatives"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2031:1: rule__PseudoClassFunction__Alternatives : ( ( ( rule__PseudoClassFunction__Group_0__0 ) ) | ( (
+	// rule__PseudoClassFunction__Group_1__0 ) ) );
+	public final void rule__PseudoClassFunction__Alternatives() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2035:1: ( ( ( rule__PseudoClassFunction__Group_0__0 ) ) | ( ( rule__PseudoClassFunction__Group_1__0 )
+			// ) )
+			int alt23 = 2;
+			int LA23_0 = input.LA(1);
+
+			if ((LA23_0 == RULE_COLON)) {
+				int LA23_1 = input.LA(2);
+
+				if ((LA23_1 == 63)) {
+					alt23 = 1;
+				}
+				else if (((LA23_1 >= RULE_DASH && LA23_1 <= RULE_UNDERSCORE) || (LA23_1 >= RULE_ONE_HEX_LETTER && LA23_1 <= RULE_ONE_NON_HEX_LETTER) || (LA23_1 >= 49 && LA23_1 <= 52))) {
+					alt23 = 2;
+				}
+				else {
+					if (state.backtracking > 0) {
+						state.failed = true;
+						return;
+					}
+					NoViableAltException nvae =
+							new NoViableAltException("", 23, 1, input);
+
+					throw nvae;
+				}
+			}
+			else {
+				if (state.backtracking > 0) {
+					state.failed = true;
+					return;
+				}
+				NoViableAltException nvae =
+						new NoViableAltException("", 23, 0, input);
+
+				throw nvae;
+			}
+			switch (alt23) {
+			case 1:
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2036:1: ( ( rule__PseudoClassFunction__Group_0__0 ) )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2036:1: ( ( rule__PseudoClassFunction__Group_0__0 ) )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2037:1: ( rule__PseudoClassFunction__Group_0__0 )
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getPseudoClassFunctionAccess().getGroup_0());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2038:1: ( rule__PseudoClassFunction__Group_0__0 )
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2038:2: rule__PseudoClassFunction__Group_0__0
+					{
+						pushFollow(FOLLOW_rule__PseudoClassFunction__Group_0__0_in_rule__PseudoClassFunction__Alternatives4277);
+						rule__PseudoClassFunction__Group_0__0();
+
+						state._fsp--;
+						if (state.failed) {
+							return;
+						}
+
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getPseudoClassFunctionAccess().getGroup_0());
+					}
+
+				}
+
+
+			}
+				break;
+			case 2:
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2042:6: ( ( rule__PseudoClassFunction__Group_1__0 ) )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2042:6: ( ( rule__PseudoClassFunction__Group_1__0 ) )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2043:1: ( rule__PseudoClassFunction__Group_1__0 )
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getPseudoClassFunctionAccess().getGroup_1());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2044:1: ( rule__PseudoClassFunction__Group_1__0 )
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2044:2: rule__PseudoClassFunction__Group_1__0
+					{
+						pushFollow(FOLLOW_rule__PseudoClassFunction__Group_1__0_in_rule__PseudoClassFunction__Alternatives4295);
+						rule__PseudoClassFunction__Group_1__0();
+
+						state._fsp--;
+						if (state.failed) {
+							return;
+						}
+
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getPseudoClassFunctionAccess().getGroup_1());
+					}
+
+				}
+
+
+			}
+				break;
+
+			}
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__PseudoClassFunction__Alternatives"
+
+
+	// $ANTLR start "rule__Combinator__Alternatives"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2053:1: rule__Combinator__Alternatives : ( ( RULE_PLUS ) | ( '>' ) | ( '~' ) );
+	public final void rule__Combinator__Alternatives() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2057:1: ( ( RULE_PLUS ) | ( '>' ) | ( '~' ) )
+			int alt24 = 3;
+			switch (input.LA(1)) {
+			case RULE_PLUS: {
+				alt24 = 1;
+			}
+				break;
+			case 37: {
+				alt24 = 2;
+			}
+				break;
+			case 38: {
+				alt24 = 3;
+			}
+				break;
+			default:
+				if (state.backtracking > 0) {
+					state.failed = true;
+					return;
+				}
+				NoViableAltException nvae =
+						new NoViableAltException("", 24, 0, input);
+
+				throw nvae;
+			}
+
+			switch (alt24) {
+			case 1:
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2058:1: ( RULE_PLUS )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2058:1: ( RULE_PLUS )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2059:1: RULE_PLUS
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getCombinatorAccess().getPLUSTerminalRuleCall_0());
+					}
+					match(input, RULE_PLUS, FOLLOW_RULE_PLUS_in_rule__Combinator__Alternatives4328);
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getCombinatorAccess().getPLUSTerminalRuleCall_0());
+					}
+
+				}
+
+
+			}
+				break;
+			case 2:
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2064:6: ( '>' )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2064:6: ( '>' )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2065:1: '>'
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getCombinatorAccess().getGreaterThanSignKeyword_1());
+					}
+					match(input, 37, FOLLOW_37_in_rule__Combinator__Alternatives4346);
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getCombinatorAccess().getGreaterThanSignKeyword_1());
+					}
+
+				}
+
+
+			}
+				break;
+			case 3:
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2072:6: ( '~' )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2072:6: ( '~' )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2073:1: '~'
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getCombinatorAccess().getTildeKeyword_2());
+					}
+					match(input, 38, FOLLOW_38_in_rule__Combinator__Alternatives4366);
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getCombinatorAccess().getTildeKeyword_2());
+					}
+
+				}
+
+
+			}
+				break;
+
+			}
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Combinator__Alternatives"
+
+
+	// $ANTLR start "rule__SymbolTok__SymbolAlternatives_1_0"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2087:1: rule__SymbolTok__SymbolAlternatives_1_0 : ( ( RULE_COMMA ) | ( RULE_PERCENT ) );
+	public final void rule__SymbolTok__SymbolAlternatives_1_0() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2091:1: ( ( RULE_COMMA ) | ( RULE_PERCENT ) )
+			int alt25 = 2;
+			int LA25_0 = input.LA(1);
+
+			if ((LA25_0 == RULE_COMMA)) {
+				alt25 = 1;
+			}
+			else if ((LA25_0 == RULE_PERCENT)) {
+				alt25 = 2;
+			}
+			else {
+				if (state.backtracking > 0) {
+					state.failed = true;
+					return;
+				}
+				NoViableAltException nvae =
+						new NoViableAltException("", 25, 0, input);
+
+				throw nvae;
+			}
+			switch (alt25) {
+			case 1:
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2092:1: ( RULE_COMMA )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2092:1: ( RULE_COMMA )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2093:1: RULE_COMMA
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getSymbolTokAccess().getSymbolCOMMATerminalRuleCall_1_0_0());
+					}
+					match(input, RULE_COMMA, FOLLOW_RULE_COMMA_in_rule__SymbolTok__SymbolAlternatives_1_04402);
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getSymbolTokAccess().getSymbolCOMMATerminalRuleCall_1_0_0());
+					}
+
+				}
+
+
+			}
+				break;
+			case 2:
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2098:6: ( RULE_PERCENT )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2098:6: ( RULE_PERCENT )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2099:1: RULE_PERCENT
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getSymbolTokAccess().getSymbolPERCENTTerminalRuleCall_1_0_1());
+					}
+					match(input, RULE_PERCENT, FOLLOW_RULE_PERCENT_in_rule__SymbolTok__SymbolAlternatives_1_04419);
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getSymbolTokAccess().getSymbolPERCENTTerminalRuleCall_1_0_1());
+					}
+
+				}
+
+
+			}
+				break;
+
+			}
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__SymbolTok__SymbolAlternatives_1_0"
+
+
+	// $ANTLR start "rule__CssTok__Alternatives"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2109:1: rule__CssTok__Alternatives : ( ( ruleIdentifierOrFuncTok ) | ( ruleSymbolTok ) | ( ruleWSTok ) | (
+	// ruleStringTok ) | ( ruleNumberTok ) | ( ruleUrlTok ) | ( ruleColorTok ) );
+	public final void rule__CssTok__Alternatives() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2113:1: ( ( ruleIdentifierOrFuncTok ) | ( ruleSymbolTok ) | ( ruleWSTok ) | ( ruleStringTok ) | (
+			// ruleNumberTok ) | ( ruleUrlTok ) | ( ruleColorTok ) )
+			int alt26 = 7;
+			switch (input.LA(1)) {
+			case RULE_DASH: {
+				int LA26_1 = input.LA(2);
+
+				if ((LA26_1 == RULE_UNDERSCORE || (LA26_1 >= RULE_ONE_HEX_LETTER && LA26_1 <= RULE_ONE_NON_HEX_LETTER) || (LA26_1 >= 49 && LA26_1 <= 52))) {
+					alt26 = 1;
+				}
+				else if ((LA26_1 == RULE_ONE_INT || LA26_1 == 39)) {
+					alt26 = 5;
+				}
+				else {
+					if (state.backtracking > 0) {
+						state.failed = true;
+						return;
+					}
+					NoViableAltException nvae =
+							new NoViableAltException("", 26, 1, input);
+
+					throw nvae;
+				}
+			}
+				break;
+			case RULE_UNDERSCORE:
+			case RULE_ONE_HEX_LETTER:
+			case RULE_ONE_NON_HEX_LETTER:
+			case 49:
+			case 50:
+			case 51:
+			case 52: {
+				alt26 = 1;
+			}
+				break;
+			case RULE_COMMA:
+			case RULE_PERCENT: {
+				alt26 = 2;
+			}
+				break;
+			case RULE_WS: {
+				alt26 = 3;
+			}
+				break;
+			case RULE_CSSSTRING: {
+				alt26 = 4;
+			}
+				break;
+			case RULE_PLUS:
+			case RULE_ONE_INT:
+			case 39: {
+				alt26 = 5;
+			}
+				break;
+			case 64: {
+				alt26 = 6;
+			}
+				break;
+			case RULE_HASHMARK: {
+				alt26 = 7;
+			}
+				break;
+			default:
+				if (state.backtracking > 0) {
+					state.failed = true;
+					return;
+				}
+				NoViableAltException nvae =
+						new NoViableAltException("", 26, 0, input);
+
+				throw nvae;
+			}
+
+			switch (alt26) {
+			case 1:
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2114:1: ( ruleIdentifierOrFuncTok )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2114:1: ( ruleIdentifierOrFuncTok )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2115:1: ruleIdentifierOrFuncTok
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getCssTokAccess().getIdentifierOrFuncTokParserRuleCall_0());
+					}
+					pushFollow(FOLLOW_ruleIdentifierOrFuncTok_in_rule__CssTok__Alternatives4451);
+					ruleIdentifierOrFuncTok();
+
+					state._fsp--;
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getCssTokAccess().getIdentifierOrFuncTokParserRuleCall_0());
+					}
+
+				}
+
+
+			}
+				break;
+			case 2:
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2120:6: ( ruleSymbolTok )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2120:6: ( ruleSymbolTok )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2121:1: ruleSymbolTok
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getCssTokAccess().getSymbolTokParserRuleCall_1());
+					}
+					pushFollow(FOLLOW_ruleSymbolTok_in_rule__CssTok__Alternatives4468);
+					ruleSymbolTok();
+
+					state._fsp--;
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getCssTokAccess().getSymbolTokParserRuleCall_1());
+					}
+
+				}
+
+
+			}
+				break;
+			case 3:
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2126:6: ( ruleWSTok )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2126:6: ( ruleWSTok )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2127:1: ruleWSTok
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getCssTokAccess().getWSTokParserRuleCall_2());
+					}
+					pushFollow(FOLLOW_ruleWSTok_in_rule__CssTok__Alternatives4485);
+					ruleWSTok();
+
+					state._fsp--;
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getCssTokAccess().getWSTokParserRuleCall_2());
+					}
+
+				}
+
+
+			}
+				break;
+			case 4:
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2132:6: ( ruleStringTok )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2132:6: ( ruleStringTok )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2133:1: ruleStringTok
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getCssTokAccess().getStringTokParserRuleCall_3());
+					}
+					pushFollow(FOLLOW_ruleStringTok_in_rule__CssTok__Alternatives4502);
+					ruleStringTok();
+
+					state._fsp--;
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getCssTokAccess().getStringTokParserRuleCall_3());
+					}
+
+				}
+
+
+			}
+				break;
+			case 5:
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2138:6: ( ruleNumberTok )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2138:6: ( ruleNumberTok )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2139:1: ruleNumberTok
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getCssTokAccess().getNumberTokParserRuleCall_4());
+					}
+					pushFollow(FOLLOW_ruleNumberTok_in_rule__CssTok__Alternatives4519);
+					ruleNumberTok();
+
+					state._fsp--;
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getCssTokAccess().getNumberTokParserRuleCall_4());
+					}
+
+				}
+
+
+			}
+				break;
+			case 6:
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2144:6: ( ruleUrlTok )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2144:6: ( ruleUrlTok )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2145:1: ruleUrlTok
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getCssTokAccess().getUrlTokParserRuleCall_5());
+					}
+					pushFollow(FOLLOW_ruleUrlTok_in_rule__CssTok__Alternatives4536);
+					ruleUrlTok();
+
+					state._fsp--;
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getCssTokAccess().getUrlTokParserRuleCall_5());
+					}
+
+				}
+
+
+			}
+				break;
+			case 7:
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2150:6: ( ruleColorTok )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2150:6: ( ruleColorTok )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2151:1: ruleColorTok
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getCssTokAccess().getColorTokParserRuleCall_6());
+					}
+					pushFollow(FOLLOW_ruleColorTok_in_rule__CssTok__Alternatives4553);
+					ruleColorTok();
+
+					state._fsp--;
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getCssTokAccess().getColorTokParserRuleCall_6());
+					}
+
+				}
+
+
+			}
+				break;
+
+			}
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__CssTok__Alternatives"
+
+
+	// $ANTLR start "rule__ValidURLSymbol__Alternatives"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2161:1: rule__ValidURLSymbol__Alternatives : ( ( RULE_DASH ) | ( '.' ) | ( RULE_UNDERSCORE ) | ( '~' ) | (
+	// RULE_COLON ) | ( '/' ) | ( '?' ) | ( RULE_HASHMARK ) | ( '[' ) | ( ']' ) | ( '@' ) | ( '!' ) | ( '$' ) | ( '&' ) | ( '*' ) | ( RULE_PLUS ) | ( RULE_COMMA ) | ( ';' ) | ( ( rule__ValidURLSymbol__Group_18__0 ) ) );
+	public final void rule__ValidURLSymbol__Alternatives() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2165:1: ( ( RULE_DASH ) | ( '.' ) | ( RULE_UNDERSCORE ) | ( '~' ) | ( RULE_COLON ) | ( '/' ) | ( '?'
+			// ) | ( RULE_HASHMARK ) | ( '[' ) | ( ']' ) | ( '@' ) | ( '!' ) | ( '$' ) | ( '&' ) | ( '*' ) | ( RULE_PLUS ) | ( RULE_COMMA ) | ( ';' ) | ( ( rule__ValidURLSymbol__Group_18__0 ) ) )
+			int alt27 = 19;
+			switch (input.LA(1)) {
+			case RULE_DASH: {
+				alt27 = 1;
+			}
+				break;
+			case 39: {
+				alt27 = 2;
+			}
+				break;
+			case RULE_UNDERSCORE: {
+				alt27 = 3;
+			}
+				break;
+			case 38: {
+				alt27 = 4;
+			}
+				break;
+			case RULE_COLON: {
+				alt27 = 5;
+			}
+				break;
+			case 40: {
+				alt27 = 6;
+			}
+				break;
+			case 41: {
+				alt27 = 7;
+			}
+				break;
+			case RULE_HASHMARK: {
+				alt27 = 8;
+			}
+				break;
+			case 42: {
+				alt27 = 9;
+			}
+				break;
+			case 43: {
+				alt27 = 10;
+			}
+				break;
+			case 44: {
+				alt27 = 11;
+			}
+				break;
+			case 45: {
+				alt27 = 12;
+			}
+				break;
+			case 46: {
+				alt27 = 13;
+			}
+				break;
+			case 47: {
+				alt27 = 14;
+			}
+				break;
+			case 36: {
+				alt27 = 15;
+			}
+				break;
+			case RULE_PLUS: {
+				alt27 = 16;
+			}
+				break;
+			case RULE_COMMA: {
+				alt27 = 17;
+			}
+				break;
+			case 48: {
+				alt27 = 18;
+			}
+				break;
+			case 35: {
+				alt27 = 19;
+			}
+				break;
+			default:
+				if (state.backtracking > 0) {
+					state.failed = true;
+					return;
+				}
+				NoViableAltException nvae =
+						new NoViableAltException("", 27, 0, input);
+
+				throw nvae;
+			}
+
+			switch (alt27) {
+			case 1:
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2166:1: ( RULE_DASH )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2166:1: ( RULE_DASH )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2167:1: RULE_DASH
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getValidURLSymbolAccess().getDASHTerminalRuleCall_0());
+					}
+					match(input, RULE_DASH, FOLLOW_RULE_DASH_in_rule__ValidURLSymbol__Alternatives4585);
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getValidURLSymbolAccess().getDASHTerminalRuleCall_0());
+					}
+
+				}
+
+
+			}
+				break;
+			case 2:
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2172:6: ( '.' )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2172:6: ( '.' )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2173:1: '.'
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getValidURLSymbolAccess().getFullStopKeyword_1());
+					}
+					match(input, 39, FOLLOW_39_in_rule__ValidURLSymbol__Alternatives4603);
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getValidURLSymbolAccess().getFullStopKeyword_1());
+					}
+
+				}
+
+
+			}
+				break;
+			case 3:
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2180:6: ( RULE_UNDERSCORE )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2180:6: ( RULE_UNDERSCORE )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2181:1: RULE_UNDERSCORE
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getValidURLSymbolAccess().getUNDERSCORETerminalRuleCall_2());
+					}
+					match(input, RULE_UNDERSCORE, FOLLOW_RULE_UNDERSCORE_in_rule__ValidURLSymbol__Alternatives4622);
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getValidURLSymbolAccess().getUNDERSCORETerminalRuleCall_2());
+					}
+
+				}
+
+
+			}
+				break;
+			case 4:
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2186:6: ( '~' )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2186:6: ( '~' )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2187:1: '~'
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getValidURLSymbolAccess().getTildeKeyword_3());
+					}
+					match(input, 38, FOLLOW_38_in_rule__ValidURLSymbol__Alternatives4640);
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getValidURLSymbolAccess().getTildeKeyword_3());
+					}
+
+				}
+
+
+			}
+				break;
+			case 5:
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2194:6: ( RULE_COLON )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2194:6: ( RULE_COLON )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2195:1: RULE_COLON
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getValidURLSymbolAccess().getCOLONTerminalRuleCall_4());
+					}
+					match(input, RULE_COLON, FOLLOW_RULE_COLON_in_rule__ValidURLSymbol__Alternatives4659);
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getValidURLSymbolAccess().getCOLONTerminalRuleCall_4());
+					}
+
+				}
+
+
+			}
+				break;
+			case 6:
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2200:6: ( '/' )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2200:6: ( '/' )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2201:1: '/'
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getValidURLSymbolAccess().getSolidusKeyword_5());
+					}
+					match(input, 40, FOLLOW_40_in_rule__ValidURLSymbol__Alternatives4677);
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getValidURLSymbolAccess().getSolidusKeyword_5());
+					}
+
+				}
+
+
+			}
+				break;
+			case 7:
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2208:6: ( '?' )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2208:6: ( '?' )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2209:1: '?'
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getValidURLSymbolAccess().getQuestionMarkKeyword_6());
+					}
+					match(input, 41, FOLLOW_41_in_rule__ValidURLSymbol__Alternatives4697);
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getValidURLSymbolAccess().getQuestionMarkKeyword_6());
+					}
+
+				}
+
+
+			}
+				break;
+			case 8:
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2216:6: ( RULE_HASHMARK )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2216:6: ( RULE_HASHMARK )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2217:1: RULE_HASHMARK
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getValidURLSymbolAccess().getHASHMARKTerminalRuleCall_7());
+					}
+					match(input, RULE_HASHMARK, FOLLOW_RULE_HASHMARK_in_rule__ValidURLSymbol__Alternatives4716);
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getValidURLSymbolAccess().getHASHMARKTerminalRuleCall_7());
+					}
+
+				}
+
+
+			}
+				break;
+			case 9:
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2222:6: ( '[' )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2222:6: ( '[' )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2223:1: '['
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getValidURLSymbolAccess().getLeftSquareBracketKeyword_8());
+					}
+					match(input, 42, FOLLOW_42_in_rule__ValidURLSymbol__Alternatives4734);
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getValidURLSymbolAccess().getLeftSquareBracketKeyword_8());
+					}
+
+				}
+
+
+			}
+				break;
+			case 10:
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2230:6: ( ']' )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2230:6: ( ']' )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2231:1: ']'
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getValidURLSymbolAccess().getRightSquareBracketKeyword_9());
+					}
+					match(input, 43, FOLLOW_43_in_rule__ValidURLSymbol__Alternatives4754);
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getValidURLSymbolAccess().getRightSquareBracketKeyword_9());
+					}
+
+				}
+
+
+			}
+				break;
+			case 11:
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2238:6: ( '@' )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2238:6: ( '@' )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2239:1: '@'
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getValidURLSymbolAccess().getCommercialAtKeyword_10());
+					}
+					match(input, 44, FOLLOW_44_in_rule__ValidURLSymbol__Alternatives4774);
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getValidURLSymbolAccess().getCommercialAtKeyword_10());
+					}
+
+				}
+
+
+			}
+				break;
+			case 12:
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2246:6: ( '!' )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2246:6: ( '!' )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2247:1: '!'
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getValidURLSymbolAccess().getExclamationMarkKeyword_11());
+					}
+					match(input, 45, FOLLOW_45_in_rule__ValidURLSymbol__Alternatives4794);
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getValidURLSymbolAccess().getExclamationMarkKeyword_11());
+					}
+
+				}
+
+
+			}
+				break;
+			case 13:
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2254:6: ( '$' )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2254:6: ( '$' )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2255:1: '$'
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getValidURLSymbolAccess().getDollarSignKeyword_12());
+					}
+					match(input, 46, FOLLOW_46_in_rule__ValidURLSymbol__Alternatives4814);
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getValidURLSymbolAccess().getDollarSignKeyword_12());
+					}
+
+				}
+
+
+			}
+				break;
+			case 14:
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2262:6: ( '&' )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2262:6: ( '&' )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2263:1: '&'
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getValidURLSymbolAccess().getAmpersandKeyword_13());
+					}
+					match(input, 47, FOLLOW_47_in_rule__ValidURLSymbol__Alternatives4834);
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getValidURLSymbolAccess().getAmpersandKeyword_13());
+					}
+
+				}
+
+
+			}
+				break;
+			case 15:
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2270:6: ( '*' )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2270:6: ( '*' )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2271:1: '*'
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getValidURLSymbolAccess().getAsteriskKeyword_14());
+					}
+					match(input, 36, FOLLOW_36_in_rule__ValidURLSymbol__Alternatives4854);
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getValidURLSymbolAccess().getAsteriskKeyword_14());
+					}
+
+				}
+
+
+			}
+				break;
+			case 16:
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2278:6: ( RULE_PLUS )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2278:6: ( RULE_PLUS )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2279:1: RULE_PLUS
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getValidURLSymbolAccess().getPLUSTerminalRuleCall_15());
+					}
+					match(input, RULE_PLUS, FOLLOW_RULE_PLUS_in_rule__ValidURLSymbol__Alternatives4873);
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getValidURLSymbolAccess().getPLUSTerminalRuleCall_15());
+					}
+
+				}
+
+
+			}
+				break;
+			case 17:
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2284:6: ( RULE_COMMA )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2284:6: ( RULE_COMMA )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2285:1: RULE_COMMA
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getValidURLSymbolAccess().getCOMMATerminalRuleCall_16());
+					}
+					match(input, RULE_COMMA, FOLLOW_RULE_COMMA_in_rule__ValidURLSymbol__Alternatives4890);
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getValidURLSymbolAccess().getCOMMATerminalRuleCall_16());
+					}
+
+				}
+
+
+			}
+				break;
+			case 18:
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2290:6: ( ';' )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2290:6: ( ';' )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2291:1: ';'
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getValidURLSymbolAccess().getSemicolonKeyword_17());
+					}
+					match(input, 48, FOLLOW_48_in_rule__ValidURLSymbol__Alternatives4908);
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getValidURLSymbolAccess().getSemicolonKeyword_17());
+					}
+
+				}
+
+
+			}
+				break;
+			case 19:
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2298:6: ( ( rule__ValidURLSymbol__Group_18__0 ) )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2298:6: ( ( rule__ValidURLSymbol__Group_18__0 ) )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2299:1: ( rule__ValidURLSymbol__Group_18__0 )
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getValidURLSymbolAccess().getGroup_18());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2300:1: ( rule__ValidURLSymbol__Group_18__0 )
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2300:2: rule__ValidURLSymbol__Group_18__0
+					{
+						pushFollow(FOLLOW_rule__ValidURLSymbol__Group_18__0_in_rule__ValidURLSymbol__Alternatives4927);
+						rule__ValidURLSymbol__Group_18__0();
+
+						state._fsp--;
+						if (state.failed) {
+							return;
+						}
+
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getValidURLSymbolAccess().getGroup_18());
+					}
+
+				}
+
+
+			}
+				break;
+
+			}
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__ValidURLSymbol__Alternatives"
+
+
+	// $ANTLR start "rule__KeywordHack__Alternatives"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2309:1: rule__KeywordHack__Alternatives : ( ( 'not' ) | ( 'no' ) | ( 'url' ) | ( 'ur' ) );
+	public final void rule__KeywordHack__Alternatives() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2313:1: ( ( 'not' ) | ( 'no' ) | ( 'url' ) | ( 'ur' ) )
+			int alt28 = 4;
+			switch (input.LA(1)) {
+			case 49: {
+				alt28 = 1;
+			}
+				break;
+			case 50: {
+				alt28 = 2;
+			}
+				break;
+			case 51: {
+				alt28 = 3;
+			}
+				break;
+			case 52: {
+				alt28 = 4;
+			}
+				break;
+			default:
+				if (state.backtracking > 0) {
+					state.failed = true;
+					return;
+				}
+				NoViableAltException nvae =
+						new NoViableAltException("", 28, 0, input);
+
+				throw nvae;
+			}
+
+			switch (alt28) {
+			case 1:
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2314:1: ( 'not' )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2314:1: ( 'not' )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2315:1: 'not'
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getKeywordHackAccess().getNotKeyword_0());
+					}
+					match(input, 49, FOLLOW_49_in_rule__KeywordHack__Alternatives4961);
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getKeywordHackAccess().getNotKeyword_0());
+					}
+
+				}
+
+
+			}
+				break;
+			case 2:
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2322:6: ( 'no' )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2322:6: ( 'no' )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2323:1: 'no'
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getKeywordHackAccess().getNoKeyword_1());
+					}
+					match(input, 50, FOLLOW_50_in_rule__KeywordHack__Alternatives4981);
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getKeywordHackAccess().getNoKeyword_1());
+					}
+
+				}
+
+
+			}
+				break;
+			case 3:
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2330:6: ( 'url' )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2330:6: ( 'url' )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2331:1: 'url'
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getKeywordHackAccess().getUrlKeyword_2());
+					}
+					match(input, 51, FOLLOW_51_in_rule__KeywordHack__Alternatives5001);
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getKeywordHackAccess().getUrlKeyword_2());
+					}
+
+				}
+
+
+			}
+				break;
+			case 4:
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2338:6: ( 'ur' )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2338:6: ( 'ur' )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2339:1: 'ur'
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getKeywordHackAccess().getUrKeyword_3());
+					}
+					match(input, 52, FOLLOW_52_in_rule__KeywordHack__Alternatives5021);
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getKeywordHackAccess().getUrKeyword_3());
+					}
+
+				}
+
+
+			}
+				break;
+
+			}
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__KeywordHack__Alternatives"
+
+
+	// $ANTLR start "rule__ValidURL__Alternatives"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2351:1: rule__ValidURL__Alternatives : ( ( RULE_CSSSTRING ) | ( ( ( rule__ValidURL__Alternatives_1 ) ) ( (
+	// rule__ValidURL__Alternatives_1 )* ) ) );
+	public final void rule__ValidURL__Alternatives() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2355:1: ( ( RULE_CSSSTRING ) | ( ( ( rule__ValidURL__Alternatives_1 ) ) ( (
+			// rule__ValidURL__Alternatives_1 )* ) ) )
+			int alt30 = 2;
+			int LA30_0 = input.LA(1);
+
+			if ((LA30_0 == RULE_CSSSTRING)) {
+				alt30 = 1;
+			}
+			else if (((LA30_0 >= RULE_PLUS && LA30_0 <= RULE_ONE_INT) || (LA30_0 >= 35 && LA30_0 <= 36) || (LA30_0 >= 38 && LA30_0 <= 57))) {
+				alt30 = 2;
+			}
+			else {
+				if (state.backtracking > 0) {
+					state.failed = true;
+					return;
+				}
+				NoViableAltException nvae =
+						new NoViableAltException("", 30, 0, input);
+
+				throw nvae;
+			}
+			switch (alt30) {
+			case 1:
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2356:1: ( RULE_CSSSTRING )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2356:1: ( RULE_CSSSTRING )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2357:1: RULE_CSSSTRING
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getValidURLAccess().getCSSSTRINGTerminalRuleCall_0());
+					}
+					match(input, RULE_CSSSTRING, FOLLOW_RULE_CSSSTRING_in_rule__ValidURL__Alternatives5055);
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getValidURLAccess().getCSSSTRINGTerminalRuleCall_0());
+					}
+
+				}
+
+
+			}
+				break;
+			case 2:
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2362:6: ( ( ( rule__ValidURL__Alternatives_1 ) ) ( ( rule__ValidURL__Alternatives_1 )* ) )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2362:6: ( ( ( rule__ValidURL__Alternatives_1 ) ) ( ( rule__ValidURL__Alternatives_1 )* ) )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2363:1: ( ( rule__ValidURL__Alternatives_1 ) ) ( ( rule__ValidURL__Alternatives_1 )* )
+				{
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2363:1: ( ( rule__ValidURL__Alternatives_1 ) )
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2364:1: ( rule__ValidURL__Alternatives_1 )
+					{
+						if (state.backtracking == 0) {
+							before(grammarAccess.getValidURLAccess().getAlternatives_1());
+						}
+						// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2365:1: ( rule__ValidURL__Alternatives_1 )
+						// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2365:2: rule__ValidURL__Alternatives_1
+						{
+							pushFollow(FOLLOW_rule__ValidURL__Alternatives_1_in_rule__ValidURL__Alternatives5074);
+							rule__ValidURL__Alternatives_1();
+
+							state._fsp--;
+							if (state.failed) {
+								return;
+							}
+
+						}
+
+						if (state.backtracking == 0) {
+							after(grammarAccess.getValidURLAccess().getAlternatives_1());
+						}
+
+					}
+
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2368:1: ( ( rule__ValidURL__Alternatives_1 )* )
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2369:1: ( rule__ValidURL__Alternatives_1 )*
+					{
+						if (state.backtracking == 0) {
+							before(grammarAccess.getValidURLAccess().getAlternatives_1());
+						}
+						// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2370:1: ( rule__ValidURL__Alternatives_1 )*
+						loop29: do {
+							int alt29 = 2;
+							int LA29_0 = input.LA(1);
+
+							if (((LA29_0 >= RULE_PLUS && LA29_0 <= RULE_ONE_INT) || (LA29_0 >= 35 && LA29_0 <= 36) || (LA29_0 >= 38 && LA29_0 <= 57))) {
+								alt29 = 1;
+							}
+
+
+							switch (alt29) {
+							case 1:
+							// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2370:2: rule__ValidURL__Alternatives_1
+							{
+								pushFollow(FOLLOW_rule__ValidURL__Alternatives_1_in_rule__ValidURL__Alternatives5086);
+								rule__ValidURL__Alternatives_1();
+
+								state._fsp--;
+								if (state.failed) {
+									return;
+								}
+
+							}
+								break;
+
+							default:
+								break loop29;
+							}
+						} while (true);
+
+						if (state.backtracking == 0) {
+							after(grammarAccess.getValidURLAccess().getAlternatives_1());
+						}
+
+					}
+
+
+				}
+
+
+			}
+				break;
+
+			}
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__ValidURL__Alternatives"
+
+
+	// $ANTLR start "rule__ValidURL__Alternatives_1"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2380:1: rule__ValidURL__Alternatives_1 : ( ( ruleValidURLSymbol ) | ( ruleKeywordHack ) | (
+	// RULE_ONE_HEX_LETTER ) | ( RULE_ONE_NON_HEX_LETTER ) | ( RULE_ONE_INT ) | ( '\\\\ ' ) | ( '\\\\(' ) | ( '\\\\)' ) | ( '\\\\\\'' ) | ( '\\\\\"' ) | ( ( rule__ValidURL__Group_1_10__0 ) ) );
+	public final void rule__ValidURL__Alternatives_1() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2384:1: ( ( ruleValidURLSymbol ) | ( ruleKeywordHack ) | ( RULE_ONE_HEX_LETTER ) | (
+			// RULE_ONE_NON_HEX_LETTER ) | ( RULE_ONE_INT ) | ( '\\\\ ' ) | ( '\\\\(' ) | ( '\\\\)' ) | ( '\\\\\\'' ) | ( '\\\\\"' ) | ( ( rule__ValidURL__Group_1_10__0 ) ) )
+			int alt31 = 11;
+			switch (input.LA(1)) {
+			case RULE_PLUS:
+			case RULE_COMMA:
+			case RULE_DASH:
+			case RULE_UNDERSCORE:
+			case RULE_COLON:
+			case RULE_HASHMARK:
+			case 35:
+			case 36:
+			case 38:
+			case 39:
+			case 40:
+			case 41:
+			case 42:
+			case 43:
+			case 44:
+			case 45:
+			case 46:
+			case 47:
+			case 48: {
+				alt31 = 1;
+			}
+				break;
+			case 49:
+			case 50:
+			case 51:
+			case 52: {
+				alt31 = 2;
+			}
+				break;
+			case RULE_ONE_HEX_LETTER: {
+				alt31 = 3;
+			}
+				break;
+			case RULE_ONE_NON_HEX_LETTER: {
+				alt31 = 4;
+			}
+				break;
+			case RULE_ONE_INT: {
+				alt31 = 5;
+			}
+				break;
+			case 53: {
+				alt31 = 6;
+			}
+				break;
+			case 54: {
+				alt31 = 7;
+			}
+				break;
+			case 55: {
+				alt31 = 8;
+			}
+				break;
+			case 56: {
+				alt31 = 9;
+			}
+				break;
+			case 57: {
+				alt31 = 10;
+			}
+				break;
+			case RULE_PERCENT: {
+				alt31 = 11;
+			}
+				break;
+			default:
+				if (state.backtracking > 0) {
+					state.failed = true;
+					return;
+				}
+				NoViableAltException nvae =
+						new NoViableAltException("", 31, 0, input);
+
+				throw nvae;
+			}
+
+			switch (alt31) {
+			case 1:
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2385:1: ( ruleValidURLSymbol )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2385:1: ( ruleValidURLSymbol )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2386:1: ruleValidURLSymbol
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getValidURLAccess().getValidURLSymbolParserRuleCall_1_0());
+					}
+					pushFollow(FOLLOW_ruleValidURLSymbol_in_rule__ValidURL__Alternatives_15122);
+					ruleValidURLSymbol();
+
+					state._fsp--;
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getValidURLAccess().getValidURLSymbolParserRuleCall_1_0());
+					}
+
+				}
+
+
+			}
+				break;
+			case 2:
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2391:6: ( ruleKeywordHack )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2391:6: ( ruleKeywordHack )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2392:1: ruleKeywordHack
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getValidURLAccess().getKeywordHackParserRuleCall_1_1());
+					}
+					pushFollow(FOLLOW_ruleKeywordHack_in_rule__ValidURL__Alternatives_15139);
+					ruleKeywordHack();
+
+					state._fsp--;
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getValidURLAccess().getKeywordHackParserRuleCall_1_1());
+					}
+
+				}
+
+
+			}
+				break;
+			case 3:
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2397:6: ( RULE_ONE_HEX_LETTER )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2397:6: ( RULE_ONE_HEX_LETTER )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2398:1: RULE_ONE_HEX_LETTER
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getValidURLAccess().getONE_HEX_LETTERTerminalRuleCall_1_2());
+					}
+					match(input, RULE_ONE_HEX_LETTER, FOLLOW_RULE_ONE_HEX_LETTER_in_rule__ValidURL__Alternatives_15156);
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getValidURLAccess().getONE_HEX_LETTERTerminalRuleCall_1_2());
+					}
+
+				}
+
+
+			}
+				break;
+			case 4:
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2403:6: ( RULE_ONE_NON_HEX_LETTER )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2403:6: ( RULE_ONE_NON_HEX_LETTER )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2404:1: RULE_ONE_NON_HEX_LETTER
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getValidURLAccess().getONE_NON_HEX_LETTERTerminalRuleCall_1_3());
+					}
+					match(input, RULE_ONE_NON_HEX_LETTER, FOLLOW_RULE_ONE_NON_HEX_LETTER_in_rule__ValidURL__Alternatives_15173);
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getValidURLAccess().getONE_NON_HEX_LETTERTerminalRuleCall_1_3());
+					}
+
+				}
+
+
+			}
+				break;
+			case 5:
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2409:6: ( RULE_ONE_INT )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2409:6: ( RULE_ONE_INT )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2410:1: RULE_ONE_INT
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getValidURLAccess().getONE_INTTerminalRuleCall_1_4());
+					}
+					match(input, RULE_ONE_INT, FOLLOW_RULE_ONE_INT_in_rule__ValidURL__Alternatives_15190);
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getValidURLAccess().getONE_INTTerminalRuleCall_1_4());
+					}
+
+				}
+
+
+			}
+				break;
+			case 6:
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2415:6: ( '\\\\ ' )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2415:6: ( '\\\\ ' )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2416:1: '\\\\ '
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getValidURLAccess().getReverseSolidusSpaceKeyword_1_5());
+					}
+					match(input, 53, FOLLOW_53_in_rule__ValidURL__Alternatives_15208);
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getValidURLAccess().getReverseSolidusSpaceKeyword_1_5());
+					}
+
+				}
+
+
+			}
+				break;
+			case 7:
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2423:6: ( '\\\\(' )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2423:6: ( '\\\\(' )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2424:1: '\\\\('
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getValidURLAccess().getReverseSolidusLeftParenthesisKeyword_1_6());
+					}
+					match(input, 54, FOLLOW_54_in_rule__ValidURL__Alternatives_15228);
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getValidURLAccess().getReverseSolidusLeftParenthesisKeyword_1_6());
+					}
+
+				}
+
+
+			}
+				break;
+			case 8:
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2431:6: ( '\\\\)' )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2431:6: ( '\\\\)' )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2432:1: '\\\\)'
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getValidURLAccess().getReverseSolidusRightParenthesisKeyword_1_7());
+					}
+					match(input, 55, FOLLOW_55_in_rule__ValidURL__Alternatives_15248);
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getValidURLAccess().getReverseSolidusRightParenthesisKeyword_1_7());
+					}
+
+				}
+
+
+			}
+				break;
+			case 9:
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2439:6: ( '\\\\\\'' )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2439:6: ( '\\\\\\'' )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2440:1: '\\\\\\''
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getValidURLAccess().getReverseSolidusApostropheKeyword_1_8());
+					}
+					match(input, 56, FOLLOW_56_in_rule__ValidURL__Alternatives_15268);
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getValidURLAccess().getReverseSolidusApostropheKeyword_1_8());
+					}
+
+				}
+
+
+			}
+				break;
+			case 10:
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2447:6: ( '\\\\\"' )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2447:6: ( '\\\\\"' )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2448:1: '\\\\\"'
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getValidURLAccess().getReverseSolidusQuotationMarkKeyword_1_9());
+					}
+					match(input, 57, FOLLOW_57_in_rule__ValidURL__Alternatives_15288);
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getValidURLAccess().getReverseSolidusQuotationMarkKeyword_1_9());
+					}
+
+				}
+
+
+			}
+				break;
+			case 11:
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2455:6: ( ( rule__ValidURL__Group_1_10__0 ) )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2455:6: ( ( rule__ValidURL__Group_1_10__0 ) )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2456:1: ( rule__ValidURL__Group_1_10__0 )
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getValidURLAccess().getGroup_1_10());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2457:1: ( rule__ValidURL__Group_1_10__0 )
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2457:2: rule__ValidURL__Group_1_10__0
+					{
+						pushFollow(FOLLOW_rule__ValidURL__Group_1_10__0_in_rule__ValidURL__Alternatives_15307);
+						rule__ValidURL__Group_1_10__0();
+
+						state._fsp--;
+						if (state.failed) {
+							return;
+						}
+
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getValidURLAccess().getGroup_1_10());
+					}
+
+				}
+
+
+			}
+				break;
+
+			}
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__ValidURL__Alternatives_1"
+
+
+	// $ANTLR start "rule__ValidURL__Alternatives_1_10_1"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2466:1: rule__ValidURL__Alternatives_1_10_1 : ( ( RULE_ONE_INT ) | ( RULE_ONE_HEX_LETTER ) );
+	public final void rule__ValidURL__Alternatives_1_10_1() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2470:1: ( ( RULE_ONE_INT ) | ( RULE_ONE_HEX_LETTER ) )
+			int alt32 = 2;
+			int LA32_0 = input.LA(1);
+
+			if ((LA32_0 == RULE_ONE_INT)) {
+				alt32 = 1;
+			}
+			else if ((LA32_0 == RULE_ONE_HEX_LETTER)) {
+				alt32 = 2;
+			}
+			else {
+				if (state.backtracking > 0) {
+					state.failed = true;
+					return;
+				}
+				NoViableAltException nvae =
+						new NoViableAltException("", 32, 0, input);
+
+				throw nvae;
+			}
+			switch (alt32) {
+			case 1:
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2471:1: ( RULE_ONE_INT )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2471:1: ( RULE_ONE_INT )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2472:1: RULE_ONE_INT
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getValidURLAccess().getONE_INTTerminalRuleCall_1_10_1_0());
+					}
+					match(input, RULE_ONE_INT, FOLLOW_RULE_ONE_INT_in_rule__ValidURL__Alternatives_1_10_15340);
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getValidURLAccess().getONE_INTTerminalRuleCall_1_10_1_0());
+					}
+
+				}
+
+
+			}
+				break;
+			case 2:
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2477:6: ( RULE_ONE_HEX_LETTER )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2477:6: ( RULE_ONE_HEX_LETTER )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2478:1: RULE_ONE_HEX_LETTER
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getValidURLAccess().getONE_HEX_LETTERTerminalRuleCall_1_10_1_1());
+					}
+					match(input, RULE_ONE_HEX_LETTER, FOLLOW_RULE_ONE_HEX_LETTER_in_rule__ValidURL__Alternatives_1_10_15357);
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getValidURLAccess().getONE_HEX_LETTERTerminalRuleCall_1_10_1_1());
+					}
+
+				}
+
+
+			}
+				break;
+
+			}
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__ValidURL__Alternatives_1_10_1"
+
+
+	// $ANTLR start "rule__ValidURL__Alternatives_1_10_2"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2488:1: rule__ValidURL__Alternatives_1_10_2 : ( ( RULE_ONE_INT ) | ( RULE_ONE_HEX_LETTER ) );
+	public final void rule__ValidURL__Alternatives_1_10_2() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2492:1: ( ( RULE_ONE_INT ) | ( RULE_ONE_HEX_LETTER ) )
+			int alt33 = 2;
+			int LA33_0 = input.LA(1);
+
+			if ((LA33_0 == RULE_ONE_INT)) {
+				alt33 = 1;
+			}
+			else if ((LA33_0 == RULE_ONE_HEX_LETTER)) {
+				alt33 = 2;
+			}
+			else {
+				if (state.backtracking > 0) {
+					state.failed = true;
+					return;
+				}
+				NoViableAltException nvae =
+						new NoViableAltException("", 33, 0, input);
+
+				throw nvae;
+			}
+			switch (alt33) {
+			case 1:
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2493:1: ( RULE_ONE_INT )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2493:1: ( RULE_ONE_INT )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2494:1: RULE_ONE_INT
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getValidURLAccess().getONE_INTTerminalRuleCall_1_10_2_0());
+					}
+					match(input, RULE_ONE_INT, FOLLOW_RULE_ONE_INT_in_rule__ValidURL__Alternatives_1_10_25389);
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getValidURLAccess().getONE_INTTerminalRuleCall_1_10_2_0());
+					}
+
+				}
+
+
+			}
+				break;
+			case 2:
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2499:6: ( RULE_ONE_HEX_LETTER )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2499:6: ( RULE_ONE_HEX_LETTER )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2500:1: RULE_ONE_HEX_LETTER
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getValidURLAccess().getONE_HEX_LETTERTerminalRuleCall_1_10_2_1());
+					}
+					match(input, RULE_ONE_HEX_LETTER, FOLLOW_RULE_ONE_HEX_LETTER_in_rule__ValidURL__Alternatives_1_10_25406);
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getValidURLAccess().getONE_HEX_LETTERTerminalRuleCall_1_10_2_1());
+					}
+
+				}
+
+
+			}
+				break;
+
+			}
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__ValidURL__Alternatives_1_10_2"
+
+
+	// $ANTLR start "rule__Identifier__Alternatives_1"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2510:1: rule__Identifier__Alternatives_1 : ( ( RULE_UNDERSCORE ) | ( RULE_ONE_HEX_LETTER ) | (
+	// RULE_ONE_NON_HEX_LETTER ) | ( ruleKeywordHack ) );
+	public final void rule__Identifier__Alternatives_1() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2514:1: ( ( RULE_UNDERSCORE ) | ( RULE_ONE_HEX_LETTER ) | ( RULE_ONE_NON_HEX_LETTER ) | (
+			// ruleKeywordHack ) )
+			int alt34 = 4;
+			switch (input.LA(1)) {
+			case RULE_UNDERSCORE: {
+				alt34 = 1;
+			}
+				break;
+			case RULE_ONE_HEX_LETTER: {
+				alt34 = 2;
+			}
+				break;
+			case RULE_ONE_NON_HEX_LETTER: {
+				alt34 = 3;
+			}
+				break;
+			case 49:
+			case 50:
+			case 51:
+			case 52: {
+				alt34 = 4;
+			}
+				break;
+			default:
+				if (state.backtracking > 0) {
+					state.failed = true;
+					return;
+				}
+				NoViableAltException nvae =
+						new NoViableAltException("", 34, 0, input);
+
+				throw nvae;
+			}
+
+			switch (alt34) {
+			case 1:
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2515:1: ( RULE_UNDERSCORE )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2515:1: ( RULE_UNDERSCORE )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2516:1: RULE_UNDERSCORE
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getIdentifierAccess().getUNDERSCORETerminalRuleCall_1_0());
+					}
+					match(input, RULE_UNDERSCORE, FOLLOW_RULE_UNDERSCORE_in_rule__Identifier__Alternatives_15438);
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getIdentifierAccess().getUNDERSCORETerminalRuleCall_1_0());
+					}
+
+				}
+
+
+			}
+				break;
+			case 2:
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2521:6: ( RULE_ONE_HEX_LETTER )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2521:6: ( RULE_ONE_HEX_LETTER )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2522:1: RULE_ONE_HEX_LETTER
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getIdentifierAccess().getONE_HEX_LETTERTerminalRuleCall_1_1());
+					}
+					match(input, RULE_ONE_HEX_LETTER, FOLLOW_RULE_ONE_HEX_LETTER_in_rule__Identifier__Alternatives_15455);
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getIdentifierAccess().getONE_HEX_LETTERTerminalRuleCall_1_1());
+					}
+
+				}
+
+
+			}
+				break;
+			case 3:
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2527:6: ( RULE_ONE_NON_HEX_LETTER )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2527:6: ( RULE_ONE_NON_HEX_LETTER )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2528:1: RULE_ONE_NON_HEX_LETTER
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getIdentifierAccess().getONE_NON_HEX_LETTERTerminalRuleCall_1_2());
+					}
+					match(input, RULE_ONE_NON_HEX_LETTER, FOLLOW_RULE_ONE_NON_HEX_LETTER_in_rule__Identifier__Alternatives_15472);
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getIdentifierAccess().getONE_NON_HEX_LETTERTerminalRuleCall_1_2());
+					}
+
+				}
+
+
+			}
+				break;
+			case 4:
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2533:6: ( ruleKeywordHack )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2533:6: ( ruleKeywordHack )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2534:1: ruleKeywordHack
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getIdentifierAccess().getKeywordHackParserRuleCall_1_3());
+					}
+					pushFollow(FOLLOW_ruleKeywordHack_in_rule__Identifier__Alternatives_15489);
+					ruleKeywordHack();
+
+					state._fsp--;
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getIdentifierAccess().getKeywordHackParserRuleCall_1_3());
+					}
+
+				}
+
+
+			}
+				break;
+
+			}
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Identifier__Alternatives_1"
+
+
+	// $ANTLR start "rule__Identifier__Alternatives_2_0"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2544:1: rule__Identifier__Alternatives_2_0 : ( ( RULE_UNDERSCORE ) | ( RULE_DASH ) | ( RULE_ONE_HEX_LETTER )
+	// | ( RULE_ONE_NON_HEX_LETTER ) | ( RULE_ONE_INT ) | ( ruleKeywordHack ) );
+	public final void rule__Identifier__Alternatives_2_0() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2548:1: ( ( RULE_UNDERSCORE ) | ( RULE_DASH ) | ( RULE_ONE_HEX_LETTER ) | ( RULE_ONE_NON_HEX_LETTER )
+			// | ( RULE_ONE_INT ) | ( ruleKeywordHack ) )
+			int alt35 = 6;
+			switch (input.LA(1)) {
+			case RULE_UNDERSCORE: {
+				alt35 = 1;
+			}
+				break;
+			case RULE_DASH: {
+				alt35 = 2;
+			}
+				break;
+			case RULE_ONE_HEX_LETTER: {
+				alt35 = 3;
+			}
+				break;
+			case RULE_ONE_NON_HEX_LETTER: {
+				alt35 = 4;
+			}
+				break;
+			case RULE_ONE_INT: {
+				alt35 = 5;
+			}
+				break;
+			case 49:
+			case 50:
+			case 51:
+			case 52: {
+				alt35 = 6;
+			}
+				break;
+			default:
+				if (state.backtracking > 0) {
+					state.failed = true;
+					return;
+				}
+				NoViableAltException nvae =
+						new NoViableAltException("", 35, 0, input);
+
+				throw nvae;
+			}
+
+			switch (alt35) {
+			case 1:
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2549:1: ( RULE_UNDERSCORE )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2549:1: ( RULE_UNDERSCORE )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2550:1: RULE_UNDERSCORE
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getIdentifierAccess().getUNDERSCORETerminalRuleCall_2_0_0());
+					}
+					match(input, RULE_UNDERSCORE, FOLLOW_RULE_UNDERSCORE_in_rule__Identifier__Alternatives_2_05521);
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getIdentifierAccess().getUNDERSCORETerminalRuleCall_2_0_0());
+					}
+
+				}
+
+
+			}
+				break;
+			case 2:
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2555:6: ( RULE_DASH )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2555:6: ( RULE_DASH )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2556:1: RULE_DASH
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getIdentifierAccess().getDASHTerminalRuleCall_2_0_1());
+					}
+					match(input, RULE_DASH, FOLLOW_RULE_DASH_in_rule__Identifier__Alternatives_2_05538);
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getIdentifierAccess().getDASHTerminalRuleCall_2_0_1());
+					}
+
+				}
+
+
+			}
+				break;
+			case 3:
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2561:6: ( RULE_ONE_HEX_LETTER )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2561:6: ( RULE_ONE_HEX_LETTER )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2562:1: RULE_ONE_HEX_LETTER
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getIdentifierAccess().getONE_HEX_LETTERTerminalRuleCall_2_0_2());
+					}
+					match(input, RULE_ONE_HEX_LETTER, FOLLOW_RULE_ONE_HEX_LETTER_in_rule__Identifier__Alternatives_2_05555);
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getIdentifierAccess().getONE_HEX_LETTERTerminalRuleCall_2_0_2());
+					}
+
+				}
+
+
+			}
+				break;
+			case 4:
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2567:6: ( RULE_ONE_NON_HEX_LETTER )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2567:6: ( RULE_ONE_NON_HEX_LETTER )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2568:1: RULE_ONE_NON_HEX_LETTER
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getIdentifierAccess().getONE_NON_HEX_LETTERTerminalRuleCall_2_0_3());
+					}
+					match(input, RULE_ONE_NON_HEX_LETTER, FOLLOW_RULE_ONE_NON_HEX_LETTER_in_rule__Identifier__Alternatives_2_05572);
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getIdentifierAccess().getONE_NON_HEX_LETTERTerminalRuleCall_2_0_3());
+					}
+
+				}
+
+
+			}
+				break;
+			case 5:
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2573:6: ( RULE_ONE_INT )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2573:6: ( RULE_ONE_INT )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2574:1: RULE_ONE_INT
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getIdentifierAccess().getONE_INTTerminalRuleCall_2_0_4());
+					}
+					match(input, RULE_ONE_INT, FOLLOW_RULE_ONE_INT_in_rule__Identifier__Alternatives_2_05589);
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getIdentifierAccess().getONE_INTTerminalRuleCall_2_0_4());
+					}
+
+				}
+
+
+			}
+				break;
+			case 6:
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2579:6: ( ruleKeywordHack )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2579:6: ( ruleKeywordHack )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2580:1: ruleKeywordHack
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getIdentifierAccess().getKeywordHackParserRuleCall_2_0_5());
+					}
+					pushFollow(FOLLOW_ruleKeywordHack_in_rule__Identifier__Alternatives_2_05606);
+					ruleKeywordHack();
+
+					state._fsp--;
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getIdentifierAccess().getKeywordHackParserRuleCall_2_0_5());
+					}
+
+				}
+
+
+			}
+				break;
+
+			}
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Identifier__Alternatives_2_0"
+
+
+	// $ANTLR start "rule__Num__Alternatives_0"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2590:1: rule__Num__Alternatives_0 : ( ( RULE_PLUS ) | ( RULE_DASH ) );
+	public final void rule__Num__Alternatives_0() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2594:1: ( ( RULE_PLUS ) | ( RULE_DASH ) )
+			int alt36 = 2;
+			int LA36_0 = input.LA(1);
+
+			if ((LA36_0 == RULE_PLUS)) {
+				alt36 = 1;
+			}
+			else if ((LA36_0 == RULE_DASH)) {
+				alt36 = 2;
+			}
+			else {
+				if (state.backtracking > 0) {
+					state.failed = true;
+					return;
+				}
+				NoViableAltException nvae =
+						new NoViableAltException("", 36, 0, input);
+
+				throw nvae;
+			}
+			switch (alt36) {
+			case 1:
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2595:1: ( RULE_PLUS )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2595:1: ( RULE_PLUS )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2596:1: RULE_PLUS
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getNumAccess().getPLUSTerminalRuleCall_0_0());
+					}
+					match(input, RULE_PLUS, FOLLOW_RULE_PLUS_in_rule__Num__Alternatives_05638);
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getNumAccess().getPLUSTerminalRuleCall_0_0());
+					}
+
+				}
+
+
+			}
+				break;
+			case 2:
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2601:6: ( RULE_DASH )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2601:6: ( RULE_DASH )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2602:1: RULE_DASH
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getNumAccess().getDASHTerminalRuleCall_0_1());
+					}
+					match(input, RULE_DASH, FOLLOW_RULE_DASH_in_rule__Num__Alternatives_05655);
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getNumAccess().getDASHTerminalRuleCall_0_1());
+					}
+
+				}
+
+
+			}
+				break;
+
+			}
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Num__Alternatives_0"
+
+
+	// $ANTLR start "rule__Num__Alternatives_1"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2612:1: rule__Num__Alternatives_1 : ( ( ( rule__Num__Group_1_0__0 ) ) | ( ( rule__Num__Group_1_1__0 ) ) );
+	public final void rule__Num__Alternatives_1() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2616:1: ( ( ( rule__Num__Group_1_0__0 ) ) | ( ( rule__Num__Group_1_1__0 ) ) )
+			int alt37 = 2;
+			int LA37_0 = input.LA(1);
+
+			if ((LA37_0 == 39)) {
+				alt37 = 1;
+			}
+			else if ((LA37_0 == RULE_ONE_INT)) {
+				alt37 = 2;
+			}
+			else {
+				if (state.backtracking > 0) {
+					state.failed = true;
+					return;
+				}
+				NoViableAltException nvae =
+						new NoViableAltException("", 37, 0, input);
+
+				throw nvae;
+			}
+			switch (alt37) {
+			case 1:
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2617:1: ( ( rule__Num__Group_1_0__0 ) )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2617:1: ( ( rule__Num__Group_1_0__0 ) )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2618:1: ( rule__Num__Group_1_0__0 )
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getNumAccess().getGroup_1_0());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2619:1: ( rule__Num__Group_1_0__0 )
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2619:2: rule__Num__Group_1_0__0
+					{
+						pushFollow(FOLLOW_rule__Num__Group_1_0__0_in_rule__Num__Alternatives_15687);
+						rule__Num__Group_1_0__0();
+
+						state._fsp--;
+						if (state.failed) {
+							return;
+						}
+
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getNumAccess().getGroup_1_0());
+					}
+
+				}
+
+
+			}
+				break;
+			case 2:
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2623:6: ( ( rule__Num__Group_1_1__0 ) )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2623:6: ( ( rule__Num__Group_1_1__0 ) )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2624:1: ( rule__Num__Group_1_1__0 )
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getNumAccess().getGroup_1_1());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2625:1: ( rule__Num__Group_1_1__0 )
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2625:2: rule__Num__Group_1_1__0
+					{
+						pushFollow(FOLLOW_rule__Num__Group_1_1__0_in_rule__Num__Alternatives_15705);
+						rule__Num__Group_1_1__0();
+
+						state._fsp--;
+						if (state.failed) {
+							return;
+						}
+
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getNumAccess().getGroup_1_1());
+					}
+
+				}
+
+
+			}
+				break;
+
+			}
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Num__Alternatives_1"
+
+
+	// $ANTLR start "rule__Hex__Alternatives_1_0"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2634:1: rule__Hex__Alternatives_1_0 : ( ( RULE_ONE_INT ) | ( RULE_ONE_HEX_LETTER ) );
+	public final void rule__Hex__Alternatives_1_0() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2638:1: ( ( RULE_ONE_INT ) | ( RULE_ONE_HEX_LETTER ) )
+			int alt38 = 2;
+			int LA38_0 = input.LA(1);
+
+			if ((LA38_0 == RULE_ONE_INT)) {
+				alt38 = 1;
+			}
+			else if ((LA38_0 == RULE_ONE_HEX_LETTER)) {
+				alt38 = 2;
+			}
+			else {
+				if (state.backtracking > 0) {
+					state.failed = true;
+					return;
+				}
+				NoViableAltException nvae =
+						new NoViableAltException("", 38, 0, input);
+
+				throw nvae;
+			}
+			switch (alt38) {
+			case 1:
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2639:1: ( RULE_ONE_INT )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2639:1: ( RULE_ONE_INT )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2640:1: RULE_ONE_INT
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getHexAccess().getONE_INTTerminalRuleCall_1_0_0());
+					}
+					match(input, RULE_ONE_INT, FOLLOW_RULE_ONE_INT_in_rule__Hex__Alternatives_1_05738);
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getHexAccess().getONE_INTTerminalRuleCall_1_0_0());
+					}
+
+				}
+
+
+			}
+				break;
+			case 2:
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2645:6: ( RULE_ONE_HEX_LETTER )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2645:6: ( RULE_ONE_HEX_LETTER )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2646:1: RULE_ONE_HEX_LETTER
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getHexAccess().getONE_HEX_LETTERTerminalRuleCall_1_0_1());
+					}
+					match(input, RULE_ONE_HEX_LETTER, FOLLOW_RULE_ONE_HEX_LETTER_in_rule__Hex__Alternatives_1_05755);
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getHexAccess().getONE_HEX_LETTERTerminalRuleCall_1_0_1());
+					}
+
+				}
+
+
+			}
+				break;
+
+			}
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Hex__Alternatives_1_0"
+
+
+	// $ANTLR start "rule__Stylesheet__Group__0"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2658:1: rule__Stylesheet__Group__0 : rule__Stylesheet__Group__0__Impl rule__Stylesheet__Group__1 ;
+	public final void rule__Stylesheet__Group__0() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2662:1: ( rule__Stylesheet__Group__0__Impl rule__Stylesheet__Group__1 )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2663:2: rule__Stylesheet__Group__0__Impl rule__Stylesheet__Group__1
+			{
+				pushFollow(FOLLOW_rule__Stylesheet__Group__0__Impl_in_rule__Stylesheet__Group__05785);
+				rule__Stylesheet__Group__0__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				pushFollow(FOLLOW_rule__Stylesheet__Group__1_in_rule__Stylesheet__Group__05788);
+				rule__Stylesheet__Group__1();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Stylesheet__Group__0"
+
+
+	// $ANTLR start "rule__Stylesheet__Group__0__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2670:1: rule__Stylesheet__Group__0__Impl : ( ( rule__Stylesheet__CharsetAssignment_0 )? ) ;
+	public final void rule__Stylesheet__Group__0__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2674:1: ( ( ( rule__Stylesheet__CharsetAssignment_0 )? ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2675:1: ( ( rule__Stylesheet__CharsetAssignment_0 )? )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2675:1: ( ( rule__Stylesheet__CharsetAssignment_0 )? )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2676:1: ( rule__Stylesheet__CharsetAssignment_0 )?
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getStylesheetAccess().getCharsetAssignment_0());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2677:1: ( rule__Stylesheet__CharsetAssignment_0 )?
+					int alt39 = 2;
+					int LA39_0 = input.LA(1);
+
+					if (((LA39_0 >= 20 && LA39_0 <= 21))) {
+						alt39 = 1;
+					}
+					switch (alt39) {
+					case 1:
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2677:2: rule__Stylesheet__CharsetAssignment_0
+					{
+						pushFollow(FOLLOW_rule__Stylesheet__CharsetAssignment_0_in_rule__Stylesheet__Group__0__Impl5815);
+						rule__Stylesheet__CharsetAssignment_0();
+
+						state._fsp--;
+						if (state.failed) {
+							return;
+						}
+
+					}
+						break;
+
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getStylesheetAccess().getCharsetAssignment_0());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Stylesheet__Group__0__Impl"
+
+
+	// $ANTLR start "rule__Stylesheet__Group__1"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2687:1: rule__Stylesheet__Group__1 : rule__Stylesheet__Group__1__Impl rule__Stylesheet__Group__2 ;
+	public final void rule__Stylesheet__Group__1() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2691:1: ( rule__Stylesheet__Group__1__Impl rule__Stylesheet__Group__2 )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2692:2: rule__Stylesheet__Group__1__Impl rule__Stylesheet__Group__2
+			{
+				pushFollow(FOLLOW_rule__Stylesheet__Group__1__Impl_in_rule__Stylesheet__Group__15846);
+				rule__Stylesheet__Group__1__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				pushFollow(FOLLOW_rule__Stylesheet__Group__2_in_rule__Stylesheet__Group__15849);
+				rule__Stylesheet__Group__2();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Stylesheet__Group__1"
+
+
+	// $ANTLR start "rule__Stylesheet__Group__1__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2699:1: rule__Stylesheet__Group__1__Impl : ( ( rule__Stylesheet__ImportsAssignment_1 )* ) ;
+	public final void rule__Stylesheet__Group__1__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2703:1: ( ( ( rule__Stylesheet__ImportsAssignment_1 )* ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2704:1: ( ( rule__Stylesheet__ImportsAssignment_1 )* )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2704:1: ( ( rule__Stylesheet__ImportsAssignment_1 )* )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2705:1: ( rule__Stylesheet__ImportsAssignment_1 )*
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getStylesheetAccess().getImportsAssignment_1());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2706:1: ( rule__Stylesheet__ImportsAssignment_1 )*
+					loop40: do {
+						int alt40 = 2;
+						int LA40_0 = input.LA(1);
+
+						if (((LA40_0 >= 22 && LA40_0 <= 23))) {
+							alt40 = 1;
+						}
+
+
+						switch (alt40) {
+						case 1:
+						// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2706:2: rule__Stylesheet__ImportsAssignment_1
+						{
+							pushFollow(FOLLOW_rule__Stylesheet__ImportsAssignment_1_in_rule__Stylesheet__Group__1__Impl5876);
+							rule__Stylesheet__ImportsAssignment_1();
+
+							state._fsp--;
+							if (state.failed) {
+								return;
+							}
+
+						}
+							break;
+
+						default:
+							break loop40;
+						}
+					} while (true);
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getStylesheetAccess().getImportsAssignment_1());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Stylesheet__Group__1__Impl"
+
+
+	// $ANTLR start "rule__Stylesheet__Group__2"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2716:1: rule__Stylesheet__Group__2 : rule__Stylesheet__Group__2__Impl ;
+	public final void rule__Stylesheet__Group__2() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2720:1: ( rule__Stylesheet__Group__2__Impl )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2721:2: rule__Stylesheet__Group__2__Impl
+			{
+				pushFollow(FOLLOW_rule__Stylesheet__Group__2__Impl_in_rule__Stylesheet__Group__25907);
+				rule__Stylesheet__Group__2__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Stylesheet__Group__2"
+
+
+	// $ANTLR start "rule__Stylesheet__Group__2__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2727:1: rule__Stylesheet__Group__2__Impl : ( ( rule__Stylesheet__Alternatives_2 )* ) ;
+	public final void rule__Stylesheet__Group__2__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2731:1: ( ( ( rule__Stylesheet__Alternatives_2 )* ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2732:1: ( ( rule__Stylesheet__Alternatives_2 )* )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2732:1: ( ( rule__Stylesheet__Alternatives_2 )* )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2733:1: ( rule__Stylesheet__Alternatives_2 )*
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getStylesheetAccess().getAlternatives_2());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2734:1: ( rule__Stylesheet__Alternatives_2 )*
+					loop41: do {
+						int alt41 = 2;
+						int LA41_0 = input.LA(1);
+
+						if (((LA41_0 >= RULE_DASH && LA41_0 <= RULE_ONE_NON_HEX_LETTER) || (LA41_0 >= 24 && LA41_0 <= 31) || LA41_0 == 36 || LA41_0 == 39 || LA41_0 == 42 || (LA41_0 >= 49 && LA41_0 <= 52) || LA41_0 == 60)) {
+							alt41 = 1;
+						}
+
+
+						switch (alt41) {
+						case 1:
+						// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2734:2: rule__Stylesheet__Alternatives_2
+						{
+							pushFollow(FOLLOW_rule__Stylesheet__Alternatives_2_in_rule__Stylesheet__Group__2__Impl5934);
+							rule__Stylesheet__Alternatives_2();
+
+							state._fsp--;
+							if (state.failed) {
+								return;
+							}
+
+						}
+							break;
+
+						default:
+							break loop41;
+						}
+					} while (true);
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getStylesheetAccess().getAlternatives_2());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Stylesheet__Group__2__Impl"
+
+
+	// $ANTLR start "rule__Charset__Group__0"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2750:1: rule__Charset__Group__0 : rule__Charset__Group__0__Impl rule__Charset__Group__1 ;
+	public final void rule__Charset__Group__0() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2754:1: ( rule__Charset__Group__0__Impl rule__Charset__Group__1 )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2755:2: rule__Charset__Group__0__Impl rule__Charset__Group__1
+			{
+				pushFollow(FOLLOW_rule__Charset__Group__0__Impl_in_rule__Charset__Group__05971);
+				rule__Charset__Group__0__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				pushFollow(FOLLOW_rule__Charset__Group__1_in_rule__Charset__Group__05974);
+				rule__Charset__Group__1();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Charset__Group__0"
+
+
+	// $ANTLR start "rule__Charset__Group__0__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2762:1: rule__Charset__Group__0__Impl : ( ( rule__Charset__Alternatives_0 ) ) ;
+	public final void rule__Charset__Group__0__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2766:1: ( ( ( rule__Charset__Alternatives_0 ) ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2767:1: ( ( rule__Charset__Alternatives_0 ) )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2767:1: ( ( rule__Charset__Alternatives_0 ) )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2768:1: ( rule__Charset__Alternatives_0 )
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getCharsetAccess().getAlternatives_0());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2769:1: ( rule__Charset__Alternatives_0 )
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2769:2: rule__Charset__Alternatives_0
+					{
+						pushFollow(FOLLOW_rule__Charset__Alternatives_0_in_rule__Charset__Group__0__Impl6001);
+						rule__Charset__Alternatives_0();
+
+						state._fsp--;
+						if (state.failed) {
+							return;
+						}
+
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getCharsetAccess().getAlternatives_0());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Charset__Group__0__Impl"
+
+
+	// $ANTLR start "rule__Charset__Group__1"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2779:1: rule__Charset__Group__1 : rule__Charset__Group__1__Impl rule__Charset__Group__2 ;
+	public final void rule__Charset__Group__1() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2783:1: ( rule__Charset__Group__1__Impl rule__Charset__Group__2 )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2784:2: rule__Charset__Group__1__Impl rule__Charset__Group__2
+			{
+				pushFollow(FOLLOW_rule__Charset__Group__1__Impl_in_rule__Charset__Group__16031);
+				rule__Charset__Group__1__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				pushFollow(FOLLOW_rule__Charset__Group__2_in_rule__Charset__Group__16034);
+				rule__Charset__Group__2();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Charset__Group__1"
+
+
+	// $ANTLR start "rule__Charset__Group__1__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2791:1: rule__Charset__Group__1__Impl : ( ( rule__Charset__CharsetAssignment_1 ) ) ;
+	public final void rule__Charset__Group__1__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2795:1: ( ( ( rule__Charset__CharsetAssignment_1 ) ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2796:1: ( ( rule__Charset__CharsetAssignment_1 ) )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2796:1: ( ( rule__Charset__CharsetAssignment_1 ) )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2797:1: ( rule__Charset__CharsetAssignment_1 )
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getCharsetAccess().getCharsetAssignment_1());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2798:1: ( rule__Charset__CharsetAssignment_1 )
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2798:2: rule__Charset__CharsetAssignment_1
+					{
+						pushFollow(FOLLOW_rule__Charset__CharsetAssignment_1_in_rule__Charset__Group__1__Impl6061);
+						rule__Charset__CharsetAssignment_1();
+
+						state._fsp--;
+						if (state.failed) {
+							return;
+						}
+
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getCharsetAccess().getCharsetAssignment_1());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Charset__Group__1__Impl"
+
+
+	// $ANTLR start "rule__Charset__Group__2"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2808:1: rule__Charset__Group__2 : rule__Charset__Group__2__Impl ;
+	public final void rule__Charset__Group__2() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2812:1: ( rule__Charset__Group__2__Impl )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2813:2: rule__Charset__Group__2__Impl
+			{
+				pushFollow(FOLLOW_rule__Charset__Group__2__Impl_in_rule__Charset__Group__26091);
+				rule__Charset__Group__2__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Charset__Group__2"
+
+
+	// $ANTLR start "rule__Charset__Group__2__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2819:1: rule__Charset__Group__2__Impl : ( ';' ) ;
+	public final void rule__Charset__Group__2__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2823:1: ( ( ';' ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2824:1: ( ';' )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2824:1: ( ';' )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2825:1: ';'
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getCharsetAccess().getSemicolonKeyword_2());
+					}
+					match(input, 48, FOLLOW_48_in_rule__Charset__Group__2__Impl6119);
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getCharsetAccess().getSemicolonKeyword_2());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Charset__Group__2__Impl"
+
+
+	// $ANTLR start "rule__ImportExpression__Group__0"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2844:1: rule__ImportExpression__Group__0 : rule__ImportExpression__Group__0__Impl
+	// rule__ImportExpression__Group__1 ;
+	public final void rule__ImportExpression__Group__0() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2848:1: ( rule__ImportExpression__Group__0__Impl rule__ImportExpression__Group__1 )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2849:2: rule__ImportExpression__Group__0__Impl rule__ImportExpression__Group__1
+			{
+				pushFollow(FOLLOW_rule__ImportExpression__Group__0__Impl_in_rule__ImportExpression__Group__06156);
+				rule__ImportExpression__Group__0__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				pushFollow(FOLLOW_rule__ImportExpression__Group__1_in_rule__ImportExpression__Group__06159);
+				rule__ImportExpression__Group__1();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__ImportExpression__Group__0"
+
+
+	// $ANTLR start "rule__ImportExpression__Group__0__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2856:1: rule__ImportExpression__Group__0__Impl : ( ( rule__ImportExpression__Alternatives_0 ) ) ;
+	public final void rule__ImportExpression__Group__0__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2860:1: ( ( ( rule__ImportExpression__Alternatives_0 ) ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2861:1: ( ( rule__ImportExpression__Alternatives_0 ) )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2861:1: ( ( rule__ImportExpression__Alternatives_0 ) )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2862:1: ( rule__ImportExpression__Alternatives_0 )
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getImportExpressionAccess().getAlternatives_0());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2863:1: ( rule__ImportExpression__Alternatives_0 )
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2863:2: rule__ImportExpression__Alternatives_0
+					{
+						pushFollow(FOLLOW_rule__ImportExpression__Alternatives_0_in_rule__ImportExpression__Group__0__Impl6186);
+						rule__ImportExpression__Alternatives_0();
+
+						state._fsp--;
+						if (state.failed) {
+							return;
+						}
+
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getImportExpressionAccess().getAlternatives_0());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__ImportExpression__Group__0__Impl"
+
+
+	// $ANTLR start "rule__ImportExpression__Group__1"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2873:1: rule__ImportExpression__Group__1 : rule__ImportExpression__Group__1__Impl
+	// rule__ImportExpression__Group__2 ;
+	public final void rule__ImportExpression__Group__1() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2877:1: ( rule__ImportExpression__Group__1__Impl rule__ImportExpression__Group__2 )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2878:2: rule__ImportExpression__Group__1__Impl rule__ImportExpression__Group__2
+			{
+				pushFollow(FOLLOW_rule__ImportExpression__Group__1__Impl_in_rule__ImportExpression__Group__16216);
+				rule__ImportExpression__Group__1__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				pushFollow(FOLLOW_rule__ImportExpression__Group__2_in_rule__ImportExpression__Group__16219);
+				rule__ImportExpression__Group__2();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__ImportExpression__Group__1"
+
+
+	// $ANTLR start "rule__ImportExpression__Group__1__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2885:1: rule__ImportExpression__Group__1__Impl : ( ( rule__ImportExpression__Alternatives_1 ) ) ;
+	public final void rule__ImportExpression__Group__1__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2889:1: ( ( ( rule__ImportExpression__Alternatives_1 ) ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2890:1: ( ( rule__ImportExpression__Alternatives_1 ) )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2890:1: ( ( rule__ImportExpression__Alternatives_1 ) )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2891:1: ( rule__ImportExpression__Alternatives_1 )
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getImportExpressionAccess().getAlternatives_1());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2892:1: ( rule__ImportExpression__Alternatives_1 )
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2892:2: rule__ImportExpression__Alternatives_1
+					{
+						pushFollow(FOLLOW_rule__ImportExpression__Alternatives_1_in_rule__ImportExpression__Group__1__Impl6246);
+						rule__ImportExpression__Alternatives_1();
+
+						state._fsp--;
+						if (state.failed) {
+							return;
+						}
+
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getImportExpressionAccess().getAlternatives_1());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__ImportExpression__Group__1__Impl"
+
+
+	// $ANTLR start "rule__ImportExpression__Group__2"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2902:1: rule__ImportExpression__Group__2 : rule__ImportExpression__Group__2__Impl ;
+	public final void rule__ImportExpression__Group__2() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2906:1: ( rule__ImportExpression__Group__2__Impl )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2907:2: rule__ImportExpression__Group__2__Impl
+			{
+				pushFollow(FOLLOW_rule__ImportExpression__Group__2__Impl_in_rule__ImportExpression__Group__26276);
+				rule__ImportExpression__Group__2__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__ImportExpression__Group__2"
+
+
+	// $ANTLR start "rule__ImportExpression__Group__2__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2913:1: rule__ImportExpression__Group__2__Impl : ( ';' ) ;
+	public final void rule__ImportExpression__Group__2__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2917:1: ( ( ';' ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2918:1: ( ';' )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2918:1: ( ';' )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2919:1: ';'
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getImportExpressionAccess().getSemicolonKeyword_2());
+					}
+					match(input, 48, FOLLOW_48_in_rule__ImportExpression__Group__2__Impl6304);
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getImportExpressionAccess().getSemicolonKeyword_2());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__ImportExpression__Group__2__Impl"
+
+
+	// $ANTLR start "rule__ImportExpression__Group_1_1__0"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2938:1: rule__ImportExpression__Group_1_1__0 : rule__ImportExpression__Group_1_1__0__Impl
+	// rule__ImportExpression__Group_1_1__1 ;
+	public final void rule__ImportExpression__Group_1_1__0() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2942:1: ( rule__ImportExpression__Group_1_1__0__Impl rule__ImportExpression__Group_1_1__1 )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2943:2: rule__ImportExpression__Group_1_1__0__Impl rule__ImportExpression__Group_1_1__1
+			{
+				pushFollow(FOLLOW_rule__ImportExpression__Group_1_1__0__Impl_in_rule__ImportExpression__Group_1_1__06341);
+				rule__ImportExpression__Group_1_1__0__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				pushFollow(FOLLOW_rule__ImportExpression__Group_1_1__1_in_rule__ImportExpression__Group_1_1__06344);
+				rule__ImportExpression__Group_1_1__1();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__ImportExpression__Group_1_1__0"
+
+
+	// $ANTLR start "rule__ImportExpression__Group_1_1__0__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2950:1: rule__ImportExpression__Group_1_1__0__Impl : ( ruleURLType ) ;
+	public final void rule__ImportExpression__Group_1_1__0__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2954:1: ( ( ruleURLType ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2955:1: ( ruleURLType )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2955:1: ( ruleURLType )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2956:1: ruleURLType
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getImportExpressionAccess().getURLTypeParserRuleCall_1_1_0());
+					}
+					pushFollow(FOLLOW_ruleURLType_in_rule__ImportExpression__Group_1_1__0__Impl6371);
+					ruleURLType();
+
+					state._fsp--;
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getImportExpressionAccess().getURLTypeParserRuleCall_1_1_0());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__ImportExpression__Group_1_1__0__Impl"
+
+
+	// $ANTLR start "rule__ImportExpression__Group_1_1__1"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2967:1: rule__ImportExpression__Group_1_1__1 : rule__ImportExpression__Group_1_1__1__Impl ;
+	public final void rule__ImportExpression__Group_1_1__1() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2971:1: ( rule__ImportExpression__Group_1_1__1__Impl )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2972:2: rule__ImportExpression__Group_1_1__1__Impl
+			{
+				pushFollow(FOLLOW_rule__ImportExpression__Group_1_1__1__Impl_in_rule__ImportExpression__Group_1_1__16400);
+				rule__ImportExpression__Group_1_1__1__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__ImportExpression__Group_1_1__1"
+
+
+	// $ANTLR start "rule__ImportExpression__Group_1_1__1__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2978:1: rule__ImportExpression__Group_1_1__1__Impl : ( ( rule__ImportExpression__MediaListAssignment_1_1_1 )?
+	// ) ;
+	public final void rule__ImportExpression__Group_1_1__1__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2982:1: ( ( ( rule__ImportExpression__MediaListAssignment_1_1_1 )? ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2983:1: ( ( rule__ImportExpression__MediaListAssignment_1_1_1 )? )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2983:1: ( ( rule__ImportExpression__MediaListAssignment_1_1_1 )? )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2984:1: ( rule__ImportExpression__MediaListAssignment_1_1_1 )?
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getImportExpressionAccess().getMediaListAssignment_1_1_1());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2985:1: ( rule__ImportExpression__MediaListAssignment_1_1_1 )?
+					int alt42 = 2;
+					int LA42_0 = input.LA(1);
+
+					if (((LA42_0 >= RULE_DASH && LA42_0 <= RULE_UNDERSCORE) || (LA42_0 >= RULE_ONE_HEX_LETTER && LA42_0 <= RULE_ONE_NON_HEX_LETTER) || (LA42_0 >= 49 && LA42_0 <= 52))) {
+						alt42 = 1;
+					}
+					switch (alt42) {
+					case 1:
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2985:2: rule__ImportExpression__MediaListAssignment_1_1_1
+					{
+						pushFollow(FOLLOW_rule__ImportExpression__MediaListAssignment_1_1_1_in_rule__ImportExpression__Group_1_1__1__Impl6427);
+						rule__ImportExpression__MediaListAssignment_1_1_1();
+
+						state._fsp--;
+						if (state.failed) {
+							return;
+						}
+
+					}
+						break;
+
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getImportExpressionAccess().getMediaListAssignment_1_1_1());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__ImportExpression__Group_1_1__1__Impl"
+
+
+	// $ANTLR start "rule__Page__Group__0"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:2999:1: rule__Page__Group__0 : rule__Page__Group__0__Impl rule__Page__Group__1 ;
+	public final void rule__Page__Group__0() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3003:1: ( rule__Page__Group__0__Impl rule__Page__Group__1 )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3004:2: rule__Page__Group__0__Impl rule__Page__Group__1
+			{
+				pushFollow(FOLLOW_rule__Page__Group__0__Impl_in_rule__Page__Group__06462);
+				rule__Page__Group__0__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				pushFollow(FOLLOW_rule__Page__Group__1_in_rule__Page__Group__06465);
+				rule__Page__Group__1();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Page__Group__0"
+
+
+	// $ANTLR start "rule__Page__Group__0__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3011:1: rule__Page__Group__0__Impl : ( () ) ;
+	public final void rule__Page__Group__0__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3015:1: ( ( () ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3016:1: ( () )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3016:1: ( () )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3017:1: ()
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getPageAccess().getPageAction_0());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3018:1: ()
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3020:1:
+					{
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getPageAccess().getPageAction_0());
+					}
+
+				}
+
+
+			}
+
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Page__Group__0__Impl"
+
+
+	// $ANTLR start "rule__Page__Group__1"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3030:1: rule__Page__Group__1 : rule__Page__Group__1__Impl rule__Page__Group__2 ;
+	public final void rule__Page__Group__1() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3034:1: ( rule__Page__Group__1__Impl rule__Page__Group__2 )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3035:2: rule__Page__Group__1__Impl rule__Page__Group__2
+			{
+				pushFollow(FOLLOW_rule__Page__Group__1__Impl_in_rule__Page__Group__16523);
+				rule__Page__Group__1__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				pushFollow(FOLLOW_rule__Page__Group__2_in_rule__Page__Group__16526);
+				rule__Page__Group__2();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Page__Group__1"
+
+
+	// $ANTLR start "rule__Page__Group__1__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3042:1: rule__Page__Group__1__Impl : ( ( rule__Page__Alternatives_1 ) ) ;
+	public final void rule__Page__Group__1__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3046:1: ( ( ( rule__Page__Alternatives_1 ) ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3047:1: ( ( rule__Page__Alternatives_1 ) )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3047:1: ( ( rule__Page__Alternatives_1 ) )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3048:1: ( rule__Page__Alternatives_1 )
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getPageAccess().getAlternatives_1());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3049:1: ( rule__Page__Alternatives_1 )
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3049:2: rule__Page__Alternatives_1
+					{
+						pushFollow(FOLLOW_rule__Page__Alternatives_1_in_rule__Page__Group__1__Impl6553);
+						rule__Page__Alternatives_1();
+
+						state._fsp--;
+						if (state.failed) {
+							return;
+						}
+
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getPageAccess().getAlternatives_1());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Page__Group__1__Impl"
+
+
+	// $ANTLR start "rule__Page__Group__2"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3059:1: rule__Page__Group__2 : rule__Page__Group__2__Impl rule__Page__Group__3 ;
+	public final void rule__Page__Group__2() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3063:1: ( rule__Page__Group__2__Impl rule__Page__Group__3 )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3064:2: rule__Page__Group__2__Impl rule__Page__Group__3
+			{
+				pushFollow(FOLLOW_rule__Page__Group__2__Impl_in_rule__Page__Group__26583);
+				rule__Page__Group__2__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				pushFollow(FOLLOW_rule__Page__Group__3_in_rule__Page__Group__26586);
+				rule__Page__Group__3();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Page__Group__2"
+
+
+	// $ANTLR start "rule__Page__Group__2__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3071:1: rule__Page__Group__2__Impl : ( ( rule__Page__PseudoPageAssignment_2 )? ) ;
+	public final void rule__Page__Group__2__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3075:1: ( ( ( rule__Page__PseudoPageAssignment_2 )? ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3076:1: ( ( rule__Page__PseudoPageAssignment_2 )? )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3076:1: ( ( rule__Page__PseudoPageAssignment_2 )? )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3077:1: ( rule__Page__PseudoPageAssignment_2 )?
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getPageAccess().getPseudoPageAssignment_2());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3078:1: ( rule__Page__PseudoPageAssignment_2 )?
+					int alt43 = 2;
+					int LA43_0 = input.LA(1);
+
+					if ((LA43_0 == RULE_COLON)) {
+						alt43 = 1;
+					}
+					switch (alt43) {
+					case 1:
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3078:2: rule__Page__PseudoPageAssignment_2
+					{
+						pushFollow(FOLLOW_rule__Page__PseudoPageAssignment_2_in_rule__Page__Group__2__Impl6613);
+						rule__Page__PseudoPageAssignment_2();
+
+						state._fsp--;
+						if (state.failed) {
+							return;
+						}
+
+					}
+						break;
+
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getPageAccess().getPseudoPageAssignment_2());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Page__Group__2__Impl"
+
+
+	// $ANTLR start "rule__Page__Group__3"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3088:1: rule__Page__Group__3 : rule__Page__Group__3__Impl rule__Page__Group__4 ;
+	public final void rule__Page__Group__3() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3092:1: ( rule__Page__Group__3__Impl rule__Page__Group__4 )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3093:2: rule__Page__Group__3__Impl rule__Page__Group__4
+			{
+				pushFollow(FOLLOW_rule__Page__Group__3__Impl_in_rule__Page__Group__36644);
+				rule__Page__Group__3__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				pushFollow(FOLLOW_rule__Page__Group__4_in_rule__Page__Group__36647);
+				rule__Page__Group__4();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Page__Group__3"
+
+
+	// $ANTLR start "rule__Page__Group__3__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3100:1: rule__Page__Group__3__Impl : ( '{' ) ;
+	public final void rule__Page__Group__3__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3104:1: ( ( '{' ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3105:1: ( '{' )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3105:1: ( '{' )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3106:1: '{'
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getPageAccess().getLeftCurlyBracketKeyword_3());
+					}
+					match(input, 58, FOLLOW_58_in_rule__Page__Group__3__Impl6675);
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getPageAccess().getLeftCurlyBracketKeyword_3());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Page__Group__3__Impl"
+
+
+	// $ANTLR start "rule__Page__Group__4"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3119:1: rule__Page__Group__4 : rule__Page__Group__4__Impl rule__Page__Group__5 ;
+	public final void rule__Page__Group__4() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3123:1: ( rule__Page__Group__4__Impl rule__Page__Group__5 )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3124:2: rule__Page__Group__4__Impl rule__Page__Group__5
+			{
+				pushFollow(FOLLOW_rule__Page__Group__4__Impl_in_rule__Page__Group__46706);
+				rule__Page__Group__4__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				pushFollow(FOLLOW_rule__Page__Group__5_in_rule__Page__Group__46709);
+				rule__Page__Group__5();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Page__Group__4"
+
+
+	// $ANTLR start "rule__Page__Group__4__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3131:1: rule__Page__Group__4__Impl : ( ( rule__Page__DeclarationsAssignment_4 )? ) ;
+	public final void rule__Page__Group__4__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3135:1: ( ( ( rule__Page__DeclarationsAssignment_4 )? ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3136:1: ( ( rule__Page__DeclarationsAssignment_4 )? )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3136:1: ( ( rule__Page__DeclarationsAssignment_4 )? )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3137:1: ( rule__Page__DeclarationsAssignment_4 )?
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getPageAccess().getDeclarationsAssignment_4());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3138:1: ( rule__Page__DeclarationsAssignment_4 )?
+					int alt44 = 2;
+					int LA44_0 = input.LA(1);
+
+					if (((LA44_0 >= RULE_DASH && LA44_0 <= RULE_UNDERSCORE) || (LA44_0 >= RULE_ONE_HEX_LETTER && LA44_0 <= RULE_ONE_NON_HEX_LETTER) || LA44_0 == RULE_WS || (LA44_0 >= 49 && LA44_0 <= 52))) {
+						alt44 = 1;
+					}
+					switch (alt44) {
+					case 1:
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3138:2: rule__Page__DeclarationsAssignment_4
+					{
+						pushFollow(FOLLOW_rule__Page__DeclarationsAssignment_4_in_rule__Page__Group__4__Impl6736);
+						rule__Page__DeclarationsAssignment_4();
+
+						state._fsp--;
+						if (state.failed) {
+							return;
+						}
+
+					}
+						break;
+
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getPageAccess().getDeclarationsAssignment_4());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Page__Group__4__Impl"
+
+
+	// $ANTLR start "rule__Page__Group__5"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3148:1: rule__Page__Group__5 : rule__Page__Group__5__Impl rule__Page__Group__6 ;
+	public final void rule__Page__Group__5() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3152:1: ( rule__Page__Group__5__Impl rule__Page__Group__6 )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3153:2: rule__Page__Group__5__Impl rule__Page__Group__6
+			{
+				pushFollow(FOLLOW_rule__Page__Group__5__Impl_in_rule__Page__Group__56767);
+				rule__Page__Group__5__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				pushFollow(FOLLOW_rule__Page__Group__6_in_rule__Page__Group__56770);
+				rule__Page__Group__6();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Page__Group__5"
+
+
+	// $ANTLR start "rule__Page__Group__5__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3160:1: rule__Page__Group__5__Impl : ( ( rule__Page__Group_5__0 )* ) ;
+	public final void rule__Page__Group__5__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3164:1: ( ( ( rule__Page__Group_5__0 )* ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3165:1: ( ( rule__Page__Group_5__0 )* )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3165:1: ( ( rule__Page__Group_5__0 )* )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3166:1: ( rule__Page__Group_5__0 )*
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getPageAccess().getGroup_5());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3167:1: ( rule__Page__Group_5__0 )*
+					loop45: do {
+						int alt45 = 2;
+						int LA45_0 = input.LA(1);
+
+						if ((LA45_0 == 48)) {
+							alt45 = 1;
+						}
+
+
+						switch (alt45) {
+						case 1:
+						// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3167:2: rule__Page__Group_5__0
+						{
+							pushFollow(FOLLOW_rule__Page__Group_5__0_in_rule__Page__Group__5__Impl6797);
+							rule__Page__Group_5__0();
+
+							state._fsp--;
+							if (state.failed) {
+								return;
+							}
+
+						}
+							break;
+
+						default:
+							break loop45;
+						}
+					} while (true);
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getPageAccess().getGroup_5());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Page__Group__5__Impl"
+
+
+	// $ANTLR start "rule__Page__Group__6"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3177:1: rule__Page__Group__6 : rule__Page__Group__6__Impl ;
+	public final void rule__Page__Group__6() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3181:1: ( rule__Page__Group__6__Impl )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3182:2: rule__Page__Group__6__Impl
+			{
+				pushFollow(FOLLOW_rule__Page__Group__6__Impl_in_rule__Page__Group__66828);
+				rule__Page__Group__6__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Page__Group__6"
+
+
+	// $ANTLR start "rule__Page__Group__6__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3188:1: rule__Page__Group__6__Impl : ( '}' ) ;
+	public final void rule__Page__Group__6__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3192:1: ( ( '}' ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3193:1: ( '}' )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3193:1: ( '}' )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3194:1: '}'
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getPageAccess().getRightCurlyBracketKeyword_6());
+					}
+					match(input, 59, FOLLOW_59_in_rule__Page__Group__6__Impl6856);
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getPageAccess().getRightCurlyBracketKeyword_6());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Page__Group__6__Impl"
+
+
+	// $ANTLR start "rule__Page__Group_5__0"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3221:1: rule__Page__Group_5__0 : rule__Page__Group_5__0__Impl rule__Page__Group_5__1 ;
+	public final void rule__Page__Group_5__0() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3225:1: ( rule__Page__Group_5__0__Impl rule__Page__Group_5__1 )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3226:2: rule__Page__Group_5__0__Impl rule__Page__Group_5__1
+			{
+				pushFollow(FOLLOW_rule__Page__Group_5__0__Impl_in_rule__Page__Group_5__06901);
+				rule__Page__Group_5__0__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				pushFollow(FOLLOW_rule__Page__Group_5__1_in_rule__Page__Group_5__06904);
+				rule__Page__Group_5__1();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Page__Group_5__0"
+
+
+	// $ANTLR start "rule__Page__Group_5__0__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3233:1: rule__Page__Group_5__0__Impl : ( ';' ) ;
+	public final void rule__Page__Group_5__0__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3237:1: ( ( ';' ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3238:1: ( ';' )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3238:1: ( ';' )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3239:1: ';'
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getPageAccess().getSemicolonKeyword_5_0());
+					}
+					match(input, 48, FOLLOW_48_in_rule__Page__Group_5__0__Impl6932);
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getPageAccess().getSemicolonKeyword_5_0());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Page__Group_5__0__Impl"
+
+
+	// $ANTLR start "rule__Page__Group_5__1"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3252:1: rule__Page__Group_5__1 : rule__Page__Group_5__1__Impl ;
+	public final void rule__Page__Group_5__1() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3256:1: ( rule__Page__Group_5__1__Impl )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3257:2: rule__Page__Group_5__1__Impl
+			{
+				pushFollow(FOLLOW_rule__Page__Group_5__1__Impl_in_rule__Page__Group_5__16963);
+				rule__Page__Group_5__1__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Page__Group_5__1"
+
+
+	// $ANTLR start "rule__Page__Group_5__1__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3263:1: rule__Page__Group_5__1__Impl : ( ( rule__Page__DeclarationsAssignment_5_1 )? ) ;
+	public final void rule__Page__Group_5__1__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3267:1: ( ( ( rule__Page__DeclarationsAssignment_5_1 )? ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3268:1: ( ( rule__Page__DeclarationsAssignment_5_1 )? )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3268:1: ( ( rule__Page__DeclarationsAssignment_5_1 )? )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3269:1: ( rule__Page__DeclarationsAssignment_5_1 )?
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getPageAccess().getDeclarationsAssignment_5_1());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3270:1: ( rule__Page__DeclarationsAssignment_5_1 )?
+					int alt46 = 2;
+					int LA46_0 = input.LA(1);
+
+					if (((LA46_0 >= RULE_DASH && LA46_0 <= RULE_UNDERSCORE) || (LA46_0 >= RULE_ONE_HEX_LETTER && LA46_0 <= RULE_ONE_NON_HEX_LETTER) || LA46_0 == RULE_WS || (LA46_0 >= 49 && LA46_0 <= 52))) {
+						alt46 = 1;
+					}
+					switch (alt46) {
+					case 1:
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3270:2: rule__Page__DeclarationsAssignment_5_1
+					{
+						pushFollow(FOLLOW_rule__Page__DeclarationsAssignment_5_1_in_rule__Page__Group_5__1__Impl6990);
+						rule__Page__DeclarationsAssignment_5_1();
+
+						state._fsp--;
+						if (state.failed) {
+							return;
+						}
+
+					}
+						break;
+
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getPageAccess().getDeclarationsAssignment_5_1());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Page__Group_5__1__Impl"
+
+
+	// $ANTLR start "rule__Pseudo_page__Group__0"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3284:1: rule__Pseudo_page__Group__0 : rule__Pseudo_page__Group__0__Impl rule__Pseudo_page__Group__1 ;
+	public final void rule__Pseudo_page__Group__0() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3288:1: ( rule__Pseudo_page__Group__0__Impl rule__Pseudo_page__Group__1 )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3289:2: rule__Pseudo_page__Group__0__Impl rule__Pseudo_page__Group__1
+			{
+				pushFollow(FOLLOW_rule__Pseudo_page__Group__0__Impl_in_rule__Pseudo_page__Group__07025);
+				rule__Pseudo_page__Group__0__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				pushFollow(FOLLOW_rule__Pseudo_page__Group__1_in_rule__Pseudo_page__Group__07028);
+				rule__Pseudo_page__Group__1();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Pseudo_page__Group__0"
+
+
+	// $ANTLR start "rule__Pseudo_page__Group__0__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3296:1: rule__Pseudo_page__Group__0__Impl : ( RULE_COLON ) ;
+	public final void rule__Pseudo_page__Group__0__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3300:1: ( ( RULE_COLON ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3301:1: ( RULE_COLON )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3301:1: ( RULE_COLON )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3302:1: RULE_COLON
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getPseudo_pageAccess().getCOLONTerminalRuleCall_0());
+					}
+					match(input, RULE_COLON, FOLLOW_RULE_COLON_in_rule__Pseudo_page__Group__0__Impl7055);
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getPseudo_pageAccess().getCOLONTerminalRuleCall_0());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Pseudo_page__Group__0__Impl"
+
+
+	// $ANTLR start "rule__Pseudo_page__Group__1"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3313:1: rule__Pseudo_page__Group__1 : rule__Pseudo_page__Group__1__Impl ;
+	public final void rule__Pseudo_page__Group__1() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3317:1: ( rule__Pseudo_page__Group__1__Impl )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3318:2: rule__Pseudo_page__Group__1__Impl
+			{
+				pushFollow(FOLLOW_rule__Pseudo_page__Group__1__Impl_in_rule__Pseudo_page__Group__17084);
+				rule__Pseudo_page__Group__1__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Pseudo_page__Group__1"
+
+
+	// $ANTLR start "rule__Pseudo_page__Group__1__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3324:1: rule__Pseudo_page__Group__1__Impl : ( ruleIdentifier ) ;
+	public final void rule__Pseudo_page__Group__1__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3328:1: ( ( ruleIdentifier ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3329:1: ( ruleIdentifier )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3329:1: ( ruleIdentifier )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3330:1: ruleIdentifier
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getPseudo_pageAccess().getIdentifierParserRuleCall_1());
+					}
+					pushFollow(FOLLOW_ruleIdentifier_in_rule__Pseudo_page__Group__1__Impl7111);
+					ruleIdentifier();
+
+					state._fsp--;
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getPseudo_pageAccess().getIdentifierParserRuleCall_1());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Pseudo_page__Group__1__Impl"
+
+
+	// $ANTLR start "rule__Media__Group__0"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3345:1: rule__Media__Group__0 : rule__Media__Group__0__Impl rule__Media__Group__1 ;
+	public final void rule__Media__Group__0() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3349:1: ( rule__Media__Group__0__Impl rule__Media__Group__1 )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3350:2: rule__Media__Group__0__Impl rule__Media__Group__1
+			{
+				pushFollow(FOLLOW_rule__Media__Group__0__Impl_in_rule__Media__Group__07144);
+				rule__Media__Group__0__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				pushFollow(FOLLOW_rule__Media__Group__1_in_rule__Media__Group__07147);
+				rule__Media__Group__1();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Media__Group__0"
+
+
+	// $ANTLR start "rule__Media__Group__0__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3357:1: rule__Media__Group__0__Impl : ( ( rule__Media__Alternatives_0 ) ) ;
+	public final void rule__Media__Group__0__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3361:1: ( ( ( rule__Media__Alternatives_0 ) ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3362:1: ( ( rule__Media__Alternatives_0 ) )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3362:1: ( ( rule__Media__Alternatives_0 ) )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3363:1: ( rule__Media__Alternatives_0 )
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getMediaAccess().getAlternatives_0());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3364:1: ( rule__Media__Alternatives_0 )
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3364:2: rule__Media__Alternatives_0
+					{
+						pushFollow(FOLLOW_rule__Media__Alternatives_0_in_rule__Media__Group__0__Impl7174);
+						rule__Media__Alternatives_0();
+
+						state._fsp--;
+						if (state.failed) {
+							return;
+						}
+
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getMediaAccess().getAlternatives_0());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Media__Group__0__Impl"
+
+
+	// $ANTLR start "rule__Media__Group__1"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3374:1: rule__Media__Group__1 : rule__Media__Group__1__Impl rule__Media__Group__2 ;
+	public final void rule__Media__Group__1() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3378:1: ( rule__Media__Group__1__Impl rule__Media__Group__2 )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3379:2: rule__Media__Group__1__Impl rule__Media__Group__2
+			{
+				pushFollow(FOLLOW_rule__Media__Group__1__Impl_in_rule__Media__Group__17204);
+				rule__Media__Group__1__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				pushFollow(FOLLOW_rule__Media__Group__2_in_rule__Media__Group__17207);
+				rule__Media__Group__2();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Media__Group__1"
+
+
+	// $ANTLR start "rule__Media__Group__1__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3386:1: rule__Media__Group__1__Impl : ( ( rule__Media__MedialistAssignment_1 ) ) ;
+	public final void rule__Media__Group__1__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3390:1: ( ( ( rule__Media__MedialistAssignment_1 ) ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3391:1: ( ( rule__Media__MedialistAssignment_1 ) )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3391:1: ( ( rule__Media__MedialistAssignment_1 ) )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3392:1: ( rule__Media__MedialistAssignment_1 )
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getMediaAccess().getMedialistAssignment_1());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3393:1: ( rule__Media__MedialistAssignment_1 )
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3393:2: rule__Media__MedialistAssignment_1
+					{
+						pushFollow(FOLLOW_rule__Media__MedialistAssignment_1_in_rule__Media__Group__1__Impl7234);
+						rule__Media__MedialistAssignment_1();
+
+						state._fsp--;
+						if (state.failed) {
+							return;
+						}
+
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getMediaAccess().getMedialistAssignment_1());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Media__Group__1__Impl"
+
+
+	// $ANTLR start "rule__Media__Group__2"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3403:1: rule__Media__Group__2 : rule__Media__Group__2__Impl rule__Media__Group__3 ;
+	public final void rule__Media__Group__2() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3407:1: ( rule__Media__Group__2__Impl rule__Media__Group__3 )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3408:2: rule__Media__Group__2__Impl rule__Media__Group__3
+			{
+				pushFollow(FOLLOW_rule__Media__Group__2__Impl_in_rule__Media__Group__27264);
+				rule__Media__Group__2__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				pushFollow(FOLLOW_rule__Media__Group__3_in_rule__Media__Group__27267);
+				rule__Media__Group__3();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Media__Group__2"
+
+
+	// $ANTLR start "rule__Media__Group__2__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3415:1: rule__Media__Group__2__Impl : ( '{' ) ;
+	public final void rule__Media__Group__2__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3419:1: ( ( '{' ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3420:1: ( '{' )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3420:1: ( '{' )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3421:1: '{'
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getMediaAccess().getLeftCurlyBracketKeyword_2());
+					}
+					match(input, 58, FOLLOW_58_in_rule__Media__Group__2__Impl7295);
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getMediaAccess().getLeftCurlyBracketKeyword_2());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Media__Group__2__Impl"
+
+
+	// $ANTLR start "rule__Media__Group__3"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3434:1: rule__Media__Group__3 : rule__Media__Group__3__Impl rule__Media__Group__4 ;
+	public final void rule__Media__Group__3() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3438:1: ( rule__Media__Group__3__Impl rule__Media__Group__4 )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3439:2: rule__Media__Group__3__Impl rule__Media__Group__4
+			{
+				pushFollow(FOLLOW_rule__Media__Group__3__Impl_in_rule__Media__Group__37326);
+				rule__Media__Group__3__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				pushFollow(FOLLOW_rule__Media__Group__4_in_rule__Media__Group__37329);
+				rule__Media__Group__4();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Media__Group__3"
+
+
+	// $ANTLR start "rule__Media__Group__3__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3446:1: rule__Media__Group__3__Impl : ( ( rule__Media__RulesetsAssignment_3 )* ) ;
+	public final void rule__Media__Group__3__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3450:1: ( ( ( rule__Media__RulesetsAssignment_3 )* ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3451:1: ( ( rule__Media__RulesetsAssignment_3 )* )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3451:1: ( ( rule__Media__RulesetsAssignment_3 )* )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3452:1: ( rule__Media__RulesetsAssignment_3 )*
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getMediaAccess().getRulesetsAssignment_3());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3453:1: ( rule__Media__RulesetsAssignment_3 )*
+					loop47: do {
+						int alt47 = 2;
+						int LA47_0 = input.LA(1);
+
+						if (((LA47_0 >= RULE_DASH && LA47_0 <= RULE_ONE_NON_HEX_LETTER) || LA47_0 == 36 || LA47_0 == 39 || LA47_0 == 42 || (LA47_0 >= 49 && LA47_0 <= 52) || LA47_0 == 60)) {
+							alt47 = 1;
+						}
+
+
+						switch (alt47) {
+						case 1:
+						// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3453:2: rule__Media__RulesetsAssignment_3
+						{
+							pushFollow(FOLLOW_rule__Media__RulesetsAssignment_3_in_rule__Media__Group__3__Impl7356);
+							rule__Media__RulesetsAssignment_3();
+
+							state._fsp--;
+							if (state.failed) {
+								return;
+							}
+
+						}
+							break;
+
+						default:
+							break loop47;
+						}
+					} while (true);
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getMediaAccess().getRulesetsAssignment_3());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Media__Group__3__Impl"
+
+
+	// $ANTLR start "rule__Media__Group__4"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3463:1: rule__Media__Group__4 : rule__Media__Group__4__Impl ;
+	public final void rule__Media__Group__4() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3467:1: ( rule__Media__Group__4__Impl )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3468:2: rule__Media__Group__4__Impl
+			{
+				pushFollow(FOLLOW_rule__Media__Group__4__Impl_in_rule__Media__Group__47387);
+				rule__Media__Group__4__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Media__Group__4"
+
+
+	// $ANTLR start "rule__Media__Group__4__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3474:1: rule__Media__Group__4__Impl : ( '}' ) ;
+	public final void rule__Media__Group__4__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3478:1: ( ( '}' ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3479:1: ( '}' )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3479:1: ( '}' )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3480:1: '}'
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getMediaAccess().getRightCurlyBracketKeyword_4());
+					}
+					match(input, 59, FOLLOW_59_in_rule__Media__Group__4__Impl7415);
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getMediaAccess().getRightCurlyBracketKeyword_4());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Media__Group__4__Impl"
+
+
+	// $ANTLR start "rule__Media_list__Group__0"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3503:1: rule__Media_list__Group__0 : rule__Media_list__Group__0__Impl rule__Media_list__Group__1 ;
+	public final void rule__Media_list__Group__0() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3507:1: ( rule__Media_list__Group__0__Impl rule__Media_list__Group__1 )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3508:2: rule__Media_list__Group__0__Impl rule__Media_list__Group__1
+			{
+				pushFollow(FOLLOW_rule__Media_list__Group__0__Impl_in_rule__Media_list__Group__07456);
+				rule__Media_list__Group__0__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				pushFollow(FOLLOW_rule__Media_list__Group__1_in_rule__Media_list__Group__07459);
+				rule__Media_list__Group__1();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Media_list__Group__0"
+
+
+	// $ANTLR start "rule__Media_list__Group__0__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3515:1: rule__Media_list__Group__0__Impl : ( rulemedium ) ;
+	public final void rule__Media_list__Group__0__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3519:1: ( ( rulemedium ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3520:1: ( rulemedium )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3520:1: ( rulemedium )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3521:1: rulemedium
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getMedia_listAccess().getMediumParserRuleCall_0());
+					}
+					pushFollow(FOLLOW_rulemedium_in_rule__Media_list__Group__0__Impl7486);
+					rulemedium();
+
+					state._fsp--;
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getMedia_listAccess().getMediumParserRuleCall_0());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Media_list__Group__0__Impl"
+
+
+	// $ANTLR start "rule__Media_list__Group__1"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3532:1: rule__Media_list__Group__1 : rule__Media_list__Group__1__Impl ;
+	public final void rule__Media_list__Group__1() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3536:1: ( rule__Media_list__Group__1__Impl )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3537:2: rule__Media_list__Group__1__Impl
+			{
+				pushFollow(FOLLOW_rule__Media_list__Group__1__Impl_in_rule__Media_list__Group__17515);
+				rule__Media_list__Group__1__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Media_list__Group__1"
+
+
+	// $ANTLR start "rule__Media_list__Group__1__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3543:1: rule__Media_list__Group__1__Impl : ( ( rule__Media_list__Group_1__0 )* ) ;
+	public final void rule__Media_list__Group__1__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3547:1: ( ( ( rule__Media_list__Group_1__0 )* ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3548:1: ( ( rule__Media_list__Group_1__0 )* )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3548:1: ( ( rule__Media_list__Group_1__0 )* )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3549:1: ( rule__Media_list__Group_1__0 )*
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getMedia_listAccess().getGroup_1());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3550:1: ( rule__Media_list__Group_1__0 )*
+					loop48: do {
+						int alt48 = 2;
+						int LA48_0 = input.LA(1);
+
+						if ((LA48_0 == RULE_COMMA)) {
+							alt48 = 1;
+						}
+
+
+						switch (alt48) {
+						case 1:
+						// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3550:2: rule__Media_list__Group_1__0
+						{
+							pushFollow(FOLLOW_rule__Media_list__Group_1__0_in_rule__Media_list__Group__1__Impl7542);
+							rule__Media_list__Group_1__0();
+
+							state._fsp--;
+							if (state.failed) {
+								return;
+							}
+
+						}
+							break;
+
+						default:
+							break loop48;
+						}
+					} while (true);
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getMedia_listAccess().getGroup_1());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Media_list__Group__1__Impl"
+
+
+	// $ANTLR start "rule__Media_list__Group_1__0"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3564:1: rule__Media_list__Group_1__0 : rule__Media_list__Group_1__0__Impl rule__Media_list__Group_1__1 ;
+	public final void rule__Media_list__Group_1__0() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3568:1: ( rule__Media_list__Group_1__0__Impl rule__Media_list__Group_1__1 )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3569:2: rule__Media_list__Group_1__0__Impl rule__Media_list__Group_1__1
+			{
+				pushFollow(FOLLOW_rule__Media_list__Group_1__0__Impl_in_rule__Media_list__Group_1__07577);
+				rule__Media_list__Group_1__0__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				pushFollow(FOLLOW_rule__Media_list__Group_1__1_in_rule__Media_list__Group_1__07580);
+				rule__Media_list__Group_1__1();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Media_list__Group_1__0"
+
+
+	// $ANTLR start "rule__Media_list__Group_1__0__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3576:1: rule__Media_list__Group_1__0__Impl : ( RULE_COMMA ) ;
+	public final void rule__Media_list__Group_1__0__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3580:1: ( ( RULE_COMMA ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3581:1: ( RULE_COMMA )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3581:1: ( RULE_COMMA )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3582:1: RULE_COMMA
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getMedia_listAccess().getCOMMATerminalRuleCall_1_0());
+					}
+					match(input, RULE_COMMA, FOLLOW_RULE_COMMA_in_rule__Media_list__Group_1__0__Impl7607);
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getMedia_listAccess().getCOMMATerminalRuleCall_1_0());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Media_list__Group_1__0__Impl"
+
+
+	// $ANTLR start "rule__Media_list__Group_1__1"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3593:1: rule__Media_list__Group_1__1 : rule__Media_list__Group_1__1__Impl ;
+	public final void rule__Media_list__Group_1__1() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3597:1: ( rule__Media_list__Group_1__1__Impl )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3598:2: rule__Media_list__Group_1__1__Impl
+			{
+				pushFollow(FOLLOW_rule__Media_list__Group_1__1__Impl_in_rule__Media_list__Group_1__17636);
+				rule__Media_list__Group_1__1__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Media_list__Group_1__1"
+
+
+	// $ANTLR start "rule__Media_list__Group_1__1__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3604:1: rule__Media_list__Group_1__1__Impl : ( rulemedium ) ;
+	public final void rule__Media_list__Group_1__1__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3608:1: ( ( rulemedium ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3609:1: ( rulemedium )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3609:1: ( rulemedium )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3610:1: rulemedium
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getMedia_listAccess().getMediumParserRuleCall_1_1());
+					}
+					pushFollow(FOLLOW_rulemedium_in_rule__Media_list__Group_1__1__Impl7663);
+					rulemedium();
+
+					state._fsp--;
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getMedia_listAccess().getMediumParserRuleCall_1_1());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Media_list__Group_1__1__Impl"
+
+
+	// $ANTLR start "rule__Font_face__Group__0"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3625:1: rule__Font_face__Group__0 : rule__Font_face__Group__0__Impl rule__Font_face__Group__1 ;
+	public final void rule__Font_face__Group__0() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3629:1: ( rule__Font_face__Group__0__Impl rule__Font_face__Group__1 )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3630:2: rule__Font_face__Group__0__Impl rule__Font_face__Group__1
+			{
+				pushFollow(FOLLOW_rule__Font_face__Group__0__Impl_in_rule__Font_face__Group__07696);
+				rule__Font_face__Group__0__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				pushFollow(FOLLOW_rule__Font_face__Group__1_in_rule__Font_face__Group__07699);
+				rule__Font_face__Group__1();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Font_face__Group__0"
+
+
+	// $ANTLR start "rule__Font_face__Group__0__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3637:1: rule__Font_face__Group__0__Impl : ( () ) ;
+	public final void rule__Font_face__Group__0__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3641:1: ( ( () ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3642:1: ( () )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3642:1: ( () )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3643:1: ()
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getFont_faceAccess().getFont_faceAction_0());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3644:1: ()
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3646:1:
+					{
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getFont_faceAccess().getFont_faceAction_0());
+					}
+
+				}
+
+
+			}
+
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Font_face__Group__0__Impl"
+
+
+	// $ANTLR start "rule__Font_face__Group__1"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3656:1: rule__Font_face__Group__1 : rule__Font_face__Group__1__Impl rule__Font_face__Group__2 ;
+	public final void rule__Font_face__Group__1() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3660:1: ( rule__Font_face__Group__1__Impl rule__Font_face__Group__2 )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3661:2: rule__Font_face__Group__1__Impl rule__Font_face__Group__2
+			{
+				pushFollow(FOLLOW_rule__Font_face__Group__1__Impl_in_rule__Font_face__Group__17757);
+				rule__Font_face__Group__1__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				pushFollow(FOLLOW_rule__Font_face__Group__2_in_rule__Font_face__Group__17760);
+				rule__Font_face__Group__2();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Font_face__Group__1"
+
+
+	// $ANTLR start "rule__Font_face__Group__1__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3668:1: rule__Font_face__Group__1__Impl : ( ( rule__Font_face__Alternatives_1 ) ) ;
+	public final void rule__Font_face__Group__1__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3672:1: ( ( ( rule__Font_face__Alternatives_1 ) ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3673:1: ( ( rule__Font_face__Alternatives_1 ) )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3673:1: ( ( rule__Font_face__Alternatives_1 ) )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3674:1: ( rule__Font_face__Alternatives_1 )
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getFont_faceAccess().getAlternatives_1());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3675:1: ( rule__Font_face__Alternatives_1 )
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3675:2: rule__Font_face__Alternatives_1
+					{
+						pushFollow(FOLLOW_rule__Font_face__Alternatives_1_in_rule__Font_face__Group__1__Impl7787);
+						rule__Font_face__Alternatives_1();
+
+						state._fsp--;
+						if (state.failed) {
+							return;
+						}
+
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getFont_faceAccess().getAlternatives_1());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Font_face__Group__1__Impl"
+
+
+	// $ANTLR start "rule__Font_face__Group__2"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3685:1: rule__Font_face__Group__2 : rule__Font_face__Group__2__Impl rule__Font_face__Group__3 ;
+	public final void rule__Font_face__Group__2() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3689:1: ( rule__Font_face__Group__2__Impl rule__Font_face__Group__3 )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3690:2: rule__Font_face__Group__2__Impl rule__Font_face__Group__3
+			{
+				pushFollow(FOLLOW_rule__Font_face__Group__2__Impl_in_rule__Font_face__Group__27817);
+				rule__Font_face__Group__2__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				pushFollow(FOLLOW_rule__Font_face__Group__3_in_rule__Font_face__Group__27820);
+				rule__Font_face__Group__3();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Font_face__Group__2"
+
+
+	// $ANTLR start "rule__Font_face__Group__2__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3697:1: rule__Font_face__Group__2__Impl : ( '{' ) ;
+	public final void rule__Font_face__Group__2__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3701:1: ( ( '{' ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3702:1: ( '{' )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3702:1: ( '{' )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3703:1: '{'
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getFont_faceAccess().getLeftCurlyBracketKeyword_2());
+					}
+					match(input, 58, FOLLOW_58_in_rule__Font_face__Group__2__Impl7848);
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getFont_faceAccess().getLeftCurlyBracketKeyword_2());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Font_face__Group__2__Impl"
+
+
+	// $ANTLR start "rule__Font_face__Group__3"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3716:1: rule__Font_face__Group__3 : rule__Font_face__Group__3__Impl rule__Font_face__Group__4 ;
+	public final void rule__Font_face__Group__3() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3720:1: ( rule__Font_face__Group__3__Impl rule__Font_face__Group__4 )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3721:2: rule__Font_face__Group__3__Impl rule__Font_face__Group__4
+			{
+				pushFollow(FOLLOW_rule__Font_face__Group__3__Impl_in_rule__Font_face__Group__37879);
+				rule__Font_face__Group__3__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				pushFollow(FOLLOW_rule__Font_face__Group__4_in_rule__Font_face__Group__37882);
+				rule__Font_face__Group__4();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Font_face__Group__3"
+
+
+	// $ANTLR start "rule__Font_face__Group__3__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3728:1: rule__Font_face__Group__3__Impl : ( ( rule__Font_face__DeclarationsAssignment_3 )? ) ;
+	public final void rule__Font_face__Group__3__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3732:1: ( ( ( rule__Font_face__DeclarationsAssignment_3 )? ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3733:1: ( ( rule__Font_face__DeclarationsAssignment_3 )? )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3733:1: ( ( rule__Font_face__DeclarationsAssignment_3 )? )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3734:1: ( rule__Font_face__DeclarationsAssignment_3 )?
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getFont_faceAccess().getDeclarationsAssignment_3());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3735:1: ( rule__Font_face__DeclarationsAssignment_3 )?
+					int alt49 = 2;
+					int LA49_0 = input.LA(1);
+
+					if (((LA49_0 >= RULE_DASH && LA49_0 <= RULE_UNDERSCORE) || (LA49_0 >= RULE_ONE_HEX_LETTER && LA49_0 <= RULE_ONE_NON_HEX_LETTER) || LA49_0 == RULE_WS || (LA49_0 >= 49 && LA49_0 <= 52))) {
+						alt49 = 1;
+					}
+					switch (alt49) {
+					case 1:
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3735:2: rule__Font_face__DeclarationsAssignment_3
+					{
+						pushFollow(FOLLOW_rule__Font_face__DeclarationsAssignment_3_in_rule__Font_face__Group__3__Impl7909);
+						rule__Font_face__DeclarationsAssignment_3();
+
+						state._fsp--;
+						if (state.failed) {
+							return;
+						}
+
+					}
+						break;
+
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getFont_faceAccess().getDeclarationsAssignment_3());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Font_face__Group__3__Impl"
+
+
+	// $ANTLR start "rule__Font_face__Group__4"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3745:1: rule__Font_face__Group__4 : rule__Font_face__Group__4__Impl rule__Font_face__Group__5 ;
+	public final void rule__Font_face__Group__4() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3749:1: ( rule__Font_face__Group__4__Impl rule__Font_face__Group__5 )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3750:2: rule__Font_face__Group__4__Impl rule__Font_face__Group__5
+			{
+				pushFollow(FOLLOW_rule__Font_face__Group__4__Impl_in_rule__Font_face__Group__47940);
+				rule__Font_face__Group__4__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				pushFollow(FOLLOW_rule__Font_face__Group__5_in_rule__Font_face__Group__47943);
+				rule__Font_face__Group__5();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Font_face__Group__4"
+
+
+	// $ANTLR start "rule__Font_face__Group__4__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3757:1: rule__Font_face__Group__4__Impl : ( ( rule__Font_face__Group_4__0 )* ) ;
+	public final void rule__Font_face__Group__4__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3761:1: ( ( ( rule__Font_face__Group_4__0 )* ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3762:1: ( ( rule__Font_face__Group_4__0 )* )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3762:1: ( ( rule__Font_face__Group_4__0 )* )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3763:1: ( rule__Font_face__Group_4__0 )*
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getFont_faceAccess().getGroup_4());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3764:1: ( rule__Font_face__Group_4__0 )*
+					loop50: do {
+						int alt50 = 2;
+						int LA50_0 = input.LA(1);
+
+						if ((LA50_0 == 48)) {
+							alt50 = 1;
+						}
+
+
+						switch (alt50) {
+						case 1:
+						// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3764:2: rule__Font_face__Group_4__0
+						{
+							pushFollow(FOLLOW_rule__Font_face__Group_4__0_in_rule__Font_face__Group__4__Impl7970);
+							rule__Font_face__Group_4__0();
+
+							state._fsp--;
+							if (state.failed) {
+								return;
+							}
+
+						}
+							break;
+
+						default:
+							break loop50;
+						}
+					} while (true);
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getFont_faceAccess().getGroup_4());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Font_face__Group__4__Impl"
+
+
+	// $ANTLR start "rule__Font_face__Group__5"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3774:1: rule__Font_face__Group__5 : rule__Font_face__Group__5__Impl ;
+	public final void rule__Font_face__Group__5() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3778:1: ( rule__Font_face__Group__5__Impl )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3779:2: rule__Font_face__Group__5__Impl
+			{
+				pushFollow(FOLLOW_rule__Font_face__Group__5__Impl_in_rule__Font_face__Group__58001);
+				rule__Font_face__Group__5__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Font_face__Group__5"
+
+
+	// $ANTLR start "rule__Font_face__Group__5__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3785:1: rule__Font_face__Group__5__Impl : ( '}' ) ;
+	public final void rule__Font_face__Group__5__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3789:1: ( ( '}' ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3790:1: ( '}' )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3790:1: ( '}' )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3791:1: '}'
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getFont_faceAccess().getRightCurlyBracketKeyword_5());
+					}
+					match(input, 59, FOLLOW_59_in_rule__Font_face__Group__5__Impl8029);
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getFont_faceAccess().getRightCurlyBracketKeyword_5());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Font_face__Group__5__Impl"
+
+
+	// $ANTLR start "rule__Font_face__Group_4__0"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3816:1: rule__Font_face__Group_4__0 : rule__Font_face__Group_4__0__Impl rule__Font_face__Group_4__1 ;
+	public final void rule__Font_face__Group_4__0() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3820:1: ( rule__Font_face__Group_4__0__Impl rule__Font_face__Group_4__1 )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3821:2: rule__Font_face__Group_4__0__Impl rule__Font_face__Group_4__1
+			{
+				pushFollow(FOLLOW_rule__Font_face__Group_4__0__Impl_in_rule__Font_face__Group_4__08072);
+				rule__Font_face__Group_4__0__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				pushFollow(FOLLOW_rule__Font_face__Group_4__1_in_rule__Font_face__Group_4__08075);
+				rule__Font_face__Group_4__1();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Font_face__Group_4__0"
+
+
+	// $ANTLR start "rule__Font_face__Group_4__0__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3828:1: rule__Font_face__Group_4__0__Impl : ( ';' ) ;
+	public final void rule__Font_face__Group_4__0__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3832:1: ( ( ';' ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3833:1: ( ';' )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3833:1: ( ';' )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3834:1: ';'
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getFont_faceAccess().getSemicolonKeyword_4_0());
+					}
+					match(input, 48, FOLLOW_48_in_rule__Font_face__Group_4__0__Impl8103);
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getFont_faceAccess().getSemicolonKeyword_4_0());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Font_face__Group_4__0__Impl"
+
+
+	// $ANTLR start "rule__Font_face__Group_4__1"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3847:1: rule__Font_face__Group_4__1 : rule__Font_face__Group_4__1__Impl ;
+	public final void rule__Font_face__Group_4__1() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3851:1: ( rule__Font_face__Group_4__1__Impl )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3852:2: rule__Font_face__Group_4__1__Impl
+			{
+				pushFollow(FOLLOW_rule__Font_face__Group_4__1__Impl_in_rule__Font_face__Group_4__18134);
+				rule__Font_face__Group_4__1__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Font_face__Group_4__1"
+
+
+	// $ANTLR start "rule__Font_face__Group_4__1__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3858:1: rule__Font_face__Group_4__1__Impl : ( ( rule__Font_face__DeclarationsAssignment_4_1 )? ) ;
+	public final void rule__Font_face__Group_4__1__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3862:1: ( ( ( rule__Font_face__DeclarationsAssignment_4_1 )? ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3863:1: ( ( rule__Font_face__DeclarationsAssignment_4_1 )? )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3863:1: ( ( rule__Font_face__DeclarationsAssignment_4_1 )? )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3864:1: ( rule__Font_face__DeclarationsAssignment_4_1 )?
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getFont_faceAccess().getDeclarationsAssignment_4_1());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3865:1: ( rule__Font_face__DeclarationsAssignment_4_1 )?
+					int alt51 = 2;
+					int LA51_0 = input.LA(1);
+
+					if (((LA51_0 >= RULE_DASH && LA51_0 <= RULE_UNDERSCORE) || (LA51_0 >= RULE_ONE_HEX_LETTER && LA51_0 <= RULE_ONE_NON_HEX_LETTER) || LA51_0 == RULE_WS || (LA51_0 >= 49 && LA51_0 <= 52))) {
+						alt51 = 1;
+					}
+					switch (alt51) {
+					case 1:
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3865:2: rule__Font_face__DeclarationsAssignment_4_1
+					{
+						pushFollow(FOLLOW_rule__Font_face__DeclarationsAssignment_4_1_in_rule__Font_face__Group_4__1__Impl8161);
+						rule__Font_face__DeclarationsAssignment_4_1();
+
+						state._fsp--;
+						if (state.failed) {
+							return;
+						}
+
+					}
+						break;
+
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getFont_faceAccess().getDeclarationsAssignment_4_1());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Font_face__Group_4__1__Impl"
+
+
+	// $ANTLR start "rule__Keyframes__Group__0"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3879:1: rule__Keyframes__Group__0 : rule__Keyframes__Group__0__Impl rule__Keyframes__Group__1 ;
+	public final void rule__Keyframes__Group__0() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3883:1: ( rule__Keyframes__Group__0__Impl rule__Keyframes__Group__1 )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3884:2: rule__Keyframes__Group__0__Impl rule__Keyframes__Group__1
+			{
+				pushFollow(FOLLOW_rule__Keyframes__Group__0__Impl_in_rule__Keyframes__Group__08196);
+				rule__Keyframes__Group__0__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				pushFollow(FOLLOW_rule__Keyframes__Group__1_in_rule__Keyframes__Group__08199);
+				rule__Keyframes__Group__1();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Keyframes__Group__0"
+
+
+	// $ANTLR start "rule__Keyframes__Group__0__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3891:1: rule__Keyframes__Group__0__Impl : ( () ) ;
+	public final void rule__Keyframes__Group__0__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3895:1: ( ( () ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3896:1: ( () )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3896:1: ( () )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3897:1: ()
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getKeyframesAccess().getFont_faceAction_0());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3898:1: ()
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3900:1:
+					{
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getKeyframesAccess().getFont_faceAction_0());
+					}
+
+				}
+
+
+			}
+
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Keyframes__Group__0__Impl"
+
+
+	// $ANTLR start "rule__Keyframes__Group__1"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3910:1: rule__Keyframes__Group__1 : rule__Keyframes__Group__1__Impl rule__Keyframes__Group__2 ;
+	public final void rule__Keyframes__Group__1() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3914:1: ( rule__Keyframes__Group__1__Impl rule__Keyframes__Group__2 )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3915:2: rule__Keyframes__Group__1__Impl rule__Keyframes__Group__2
+			{
+				pushFollow(FOLLOW_rule__Keyframes__Group__1__Impl_in_rule__Keyframes__Group__18257);
+				rule__Keyframes__Group__1__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				pushFollow(FOLLOW_rule__Keyframes__Group__2_in_rule__Keyframes__Group__18260);
+				rule__Keyframes__Group__2();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Keyframes__Group__1"
+
+
+	// $ANTLR start "rule__Keyframes__Group__1__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3922:1: rule__Keyframes__Group__1__Impl : ( ( rule__Keyframes__Alternatives_1 ) ) ;
+	public final void rule__Keyframes__Group__1__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3926:1: ( ( ( rule__Keyframes__Alternatives_1 ) ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3927:1: ( ( rule__Keyframes__Alternatives_1 ) )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3927:1: ( ( rule__Keyframes__Alternatives_1 ) )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3928:1: ( rule__Keyframes__Alternatives_1 )
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getKeyframesAccess().getAlternatives_1());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3929:1: ( rule__Keyframes__Alternatives_1 )
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3929:2: rule__Keyframes__Alternatives_1
+					{
+						pushFollow(FOLLOW_rule__Keyframes__Alternatives_1_in_rule__Keyframes__Group__1__Impl8287);
+						rule__Keyframes__Alternatives_1();
+
+						state._fsp--;
+						if (state.failed) {
+							return;
+						}
+
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getKeyframesAccess().getAlternatives_1());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Keyframes__Group__1__Impl"
+
+
+	// $ANTLR start "rule__Keyframes__Group__2"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3939:1: rule__Keyframes__Group__2 : rule__Keyframes__Group__2__Impl rule__Keyframes__Group__3 ;
+	public final void rule__Keyframes__Group__2() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3943:1: ( rule__Keyframes__Group__2__Impl rule__Keyframes__Group__3 )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3944:2: rule__Keyframes__Group__2__Impl rule__Keyframes__Group__3
+			{
+				pushFollow(FOLLOW_rule__Keyframes__Group__2__Impl_in_rule__Keyframes__Group__28317);
+				rule__Keyframes__Group__2__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				pushFollow(FOLLOW_rule__Keyframes__Group__3_in_rule__Keyframes__Group__28320);
+				rule__Keyframes__Group__3();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Keyframes__Group__2"
+
+
+	// $ANTLR start "rule__Keyframes__Group__2__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3951:1: rule__Keyframes__Group__2__Impl : ( ( rule__Keyframes__NameAssignment_2 ) ) ;
+	public final void rule__Keyframes__Group__2__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3955:1: ( ( ( rule__Keyframes__NameAssignment_2 ) ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3956:1: ( ( rule__Keyframes__NameAssignment_2 ) )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3956:1: ( ( rule__Keyframes__NameAssignment_2 ) )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3957:1: ( rule__Keyframes__NameAssignment_2 )
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getKeyframesAccess().getNameAssignment_2());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3958:1: ( rule__Keyframes__NameAssignment_2 )
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3958:2: rule__Keyframes__NameAssignment_2
+					{
+						pushFollow(FOLLOW_rule__Keyframes__NameAssignment_2_in_rule__Keyframes__Group__2__Impl8347);
+						rule__Keyframes__NameAssignment_2();
+
+						state._fsp--;
+						if (state.failed) {
+							return;
+						}
+
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getKeyframesAccess().getNameAssignment_2());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Keyframes__Group__2__Impl"
+
+
+	// $ANTLR start "rule__Keyframes__Group__3"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3968:1: rule__Keyframes__Group__3 : rule__Keyframes__Group__3__Impl rule__Keyframes__Group__4 ;
+	public final void rule__Keyframes__Group__3() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3972:1: ( rule__Keyframes__Group__3__Impl rule__Keyframes__Group__4 )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3973:2: rule__Keyframes__Group__3__Impl rule__Keyframes__Group__4
+			{
+				pushFollow(FOLLOW_rule__Keyframes__Group__3__Impl_in_rule__Keyframes__Group__38377);
+				rule__Keyframes__Group__3__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				pushFollow(FOLLOW_rule__Keyframes__Group__4_in_rule__Keyframes__Group__38380);
+				rule__Keyframes__Group__4();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Keyframes__Group__3"
+
+
+	// $ANTLR start "rule__Keyframes__Group__3__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3980:1: rule__Keyframes__Group__3__Impl : ( '{' ) ;
+	public final void rule__Keyframes__Group__3__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3984:1: ( ( '{' ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3985:1: ( '{' )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3985:1: ( '{' )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3986:1: '{'
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getKeyframesAccess().getLeftCurlyBracketKeyword_3());
+					}
+					match(input, 58, FOLLOW_58_in_rule__Keyframes__Group__3__Impl8408);
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getKeyframesAccess().getLeftCurlyBracketKeyword_3());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Keyframes__Group__3__Impl"
+
+
+	// $ANTLR start "rule__Keyframes__Group__4"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:3999:1: rule__Keyframes__Group__4 : rule__Keyframes__Group__4__Impl rule__Keyframes__Group__5 ;
+	public final void rule__Keyframes__Group__4() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4003:1: ( rule__Keyframes__Group__4__Impl rule__Keyframes__Group__5 )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4004:2: rule__Keyframes__Group__4__Impl rule__Keyframes__Group__5
+			{
+				pushFollow(FOLLOW_rule__Keyframes__Group__4__Impl_in_rule__Keyframes__Group__48439);
+				rule__Keyframes__Group__4__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				pushFollow(FOLLOW_rule__Keyframes__Group__5_in_rule__Keyframes__Group__48442);
+				rule__Keyframes__Group__5();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Keyframes__Group__4"
+
+
+	// $ANTLR start "rule__Keyframes__Group__4__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4011:1: rule__Keyframes__Group__4__Impl : ( ( rule__Keyframes__KeyframeselectorsAssignment_4 )? ) ;
+	public final void rule__Keyframes__Group__4__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4015:1: ( ( ( rule__Keyframes__KeyframeselectorsAssignment_4 )? ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4016:1: ( ( rule__Keyframes__KeyframeselectorsAssignment_4 )? )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4016:1: ( ( rule__Keyframes__KeyframeselectorsAssignment_4 )? )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4017:1: ( rule__Keyframes__KeyframeselectorsAssignment_4 )?
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getKeyframesAccess().getKeyframeselectorsAssignment_4());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4018:1: ( rule__Keyframes__KeyframeselectorsAssignment_4 )?
+					int alt52 = 2;
+					int LA52_0 = input.LA(1);
+
+					if ((LA52_0 == RULE_PLUS || (LA52_0 >= RULE_DASH && LA52_0 <= RULE_UNDERSCORE) || (LA52_0 >= RULE_ONE_HEX_LETTER && LA52_0 <= RULE_ONE_INT) || LA52_0 == 39 || (LA52_0 >= 49 && LA52_0 <= 52))) {
+						alt52 = 1;
+					}
+					switch (alt52) {
+					case 1:
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4018:2: rule__Keyframes__KeyframeselectorsAssignment_4
+					{
+						pushFollow(FOLLOW_rule__Keyframes__KeyframeselectorsAssignment_4_in_rule__Keyframes__Group__4__Impl8469);
+						rule__Keyframes__KeyframeselectorsAssignment_4();
+
+						state._fsp--;
+						if (state.failed) {
+							return;
+						}
+
+					}
+						break;
+
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getKeyframesAccess().getKeyframeselectorsAssignment_4());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Keyframes__Group__4__Impl"
+
+
+	// $ANTLR start "rule__Keyframes__Group__5"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4028:1: rule__Keyframes__Group__5 : rule__Keyframes__Group__5__Impl rule__Keyframes__Group__6 ;
+	public final void rule__Keyframes__Group__5() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4032:1: ( rule__Keyframes__Group__5__Impl rule__Keyframes__Group__6 )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4033:2: rule__Keyframes__Group__5__Impl rule__Keyframes__Group__6
+			{
+				pushFollow(FOLLOW_rule__Keyframes__Group__5__Impl_in_rule__Keyframes__Group__58500);
+				rule__Keyframes__Group__5__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				pushFollow(FOLLOW_rule__Keyframes__Group__6_in_rule__Keyframes__Group__58503);
+				rule__Keyframes__Group__6();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Keyframes__Group__5"
+
+
+	// $ANTLR start "rule__Keyframes__Group__5__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4040:1: rule__Keyframes__Group__5__Impl : ( ( rule__Keyframes__Group_5__0 )* ) ;
+	public final void rule__Keyframes__Group__5__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4044:1: ( ( ( rule__Keyframes__Group_5__0 )* ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4045:1: ( ( rule__Keyframes__Group_5__0 )* )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4045:1: ( ( rule__Keyframes__Group_5__0 )* )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4046:1: ( rule__Keyframes__Group_5__0 )*
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getKeyframesAccess().getGroup_5());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4047:1: ( rule__Keyframes__Group_5__0 )*
+					loop53: do {
+						int alt53 = 2;
+						int LA53_0 = input.LA(1);
+
+						if ((LA53_0 == 48)) {
+							alt53 = 1;
+						}
+
+
+						switch (alt53) {
+						case 1:
+						// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4047:2: rule__Keyframes__Group_5__0
+						{
+							pushFollow(FOLLOW_rule__Keyframes__Group_5__0_in_rule__Keyframes__Group__5__Impl8530);
+							rule__Keyframes__Group_5__0();
+
+							state._fsp--;
+							if (state.failed) {
+								return;
+							}
+
+						}
+							break;
+
+						default:
+							break loop53;
+						}
+					} while (true);
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getKeyframesAccess().getGroup_5());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Keyframes__Group__5__Impl"
+
+
+	// $ANTLR start "rule__Keyframes__Group__6"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4057:1: rule__Keyframes__Group__6 : rule__Keyframes__Group__6__Impl ;
+	public final void rule__Keyframes__Group__6() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4061:1: ( rule__Keyframes__Group__6__Impl )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4062:2: rule__Keyframes__Group__6__Impl
+			{
+				pushFollow(FOLLOW_rule__Keyframes__Group__6__Impl_in_rule__Keyframes__Group__68561);
+				rule__Keyframes__Group__6__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Keyframes__Group__6"
+
+
+	// $ANTLR start "rule__Keyframes__Group__6__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4068:1: rule__Keyframes__Group__6__Impl : ( '}' ) ;
+	public final void rule__Keyframes__Group__6__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4072:1: ( ( '}' ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4073:1: ( '}' )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4073:1: ( '}' )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4074:1: '}'
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getKeyframesAccess().getRightCurlyBracketKeyword_6());
+					}
+					match(input, 59, FOLLOW_59_in_rule__Keyframes__Group__6__Impl8589);
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getKeyframesAccess().getRightCurlyBracketKeyword_6());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Keyframes__Group__6__Impl"
+
+
+	// $ANTLR start "rule__Keyframes__Group_5__0"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4101:1: rule__Keyframes__Group_5__0 : rule__Keyframes__Group_5__0__Impl rule__Keyframes__Group_5__1 ;
+	public final void rule__Keyframes__Group_5__0() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4105:1: ( rule__Keyframes__Group_5__0__Impl rule__Keyframes__Group_5__1 )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4106:2: rule__Keyframes__Group_5__0__Impl rule__Keyframes__Group_5__1
+			{
+				pushFollow(FOLLOW_rule__Keyframes__Group_5__0__Impl_in_rule__Keyframes__Group_5__08634);
+				rule__Keyframes__Group_5__0__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				pushFollow(FOLLOW_rule__Keyframes__Group_5__1_in_rule__Keyframes__Group_5__08637);
+				rule__Keyframes__Group_5__1();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Keyframes__Group_5__0"
+
+
+	// $ANTLR start "rule__Keyframes__Group_5__0__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4113:1: rule__Keyframes__Group_5__0__Impl : ( ';' ) ;
+	public final void rule__Keyframes__Group_5__0__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4117:1: ( ( ';' ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4118:1: ( ';' )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4118:1: ( ';' )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4119:1: ';'
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getKeyframesAccess().getSemicolonKeyword_5_0());
+					}
+					match(input, 48, FOLLOW_48_in_rule__Keyframes__Group_5__0__Impl8665);
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getKeyframesAccess().getSemicolonKeyword_5_0());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Keyframes__Group_5__0__Impl"
+
+
+	// $ANTLR start "rule__Keyframes__Group_5__1"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4132:1: rule__Keyframes__Group_5__1 : rule__Keyframes__Group_5__1__Impl ;
+	public final void rule__Keyframes__Group_5__1() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4136:1: ( rule__Keyframes__Group_5__1__Impl )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4137:2: rule__Keyframes__Group_5__1__Impl
+			{
+				pushFollow(FOLLOW_rule__Keyframes__Group_5__1__Impl_in_rule__Keyframes__Group_5__18696);
+				rule__Keyframes__Group_5__1__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Keyframes__Group_5__1"
+
+
+	// $ANTLR start "rule__Keyframes__Group_5__1__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4143:1: rule__Keyframes__Group_5__1__Impl : ( ( rule__Keyframes__KeyframeselectorsAssignment_5_1 )? ) ;
+	public final void rule__Keyframes__Group_5__1__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4147:1: ( ( ( rule__Keyframes__KeyframeselectorsAssignment_5_1 )? ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4148:1: ( ( rule__Keyframes__KeyframeselectorsAssignment_5_1 )? )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4148:1: ( ( rule__Keyframes__KeyframeselectorsAssignment_5_1 )? )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4149:1: ( rule__Keyframes__KeyframeselectorsAssignment_5_1 )?
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getKeyframesAccess().getKeyframeselectorsAssignment_5_1());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4150:1: ( rule__Keyframes__KeyframeselectorsAssignment_5_1 )?
+					int alt54 = 2;
+					int LA54_0 = input.LA(1);
+
+					if ((LA54_0 == RULE_PLUS || (LA54_0 >= RULE_DASH && LA54_0 <= RULE_UNDERSCORE) || (LA54_0 >= RULE_ONE_HEX_LETTER && LA54_0 <= RULE_ONE_INT) || LA54_0 == 39 || (LA54_0 >= 49 && LA54_0 <= 52))) {
+						alt54 = 1;
+					}
+					switch (alt54) {
+					case 1:
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4150:2: rule__Keyframes__KeyframeselectorsAssignment_5_1
+					{
+						pushFollow(FOLLOW_rule__Keyframes__KeyframeselectorsAssignment_5_1_in_rule__Keyframes__Group_5__1__Impl8723);
+						rule__Keyframes__KeyframeselectorsAssignment_5_1();
+
+						state._fsp--;
+						if (state.failed) {
+							return;
+						}
+
+					}
+						break;
+
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getKeyframesAccess().getKeyframeselectorsAssignment_5_1());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Keyframes__Group_5__1__Impl"
+
+
+	// $ANTLR start "rule__Keyframe_selector__Group__0"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4164:1: rule__Keyframe_selector__Group__0 : rule__Keyframe_selector__Group__0__Impl
+	// rule__Keyframe_selector__Group__1 ;
+	public final void rule__Keyframe_selector__Group__0() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4168:1: ( rule__Keyframe_selector__Group__0__Impl rule__Keyframe_selector__Group__1 )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4169:2: rule__Keyframe_selector__Group__0__Impl rule__Keyframe_selector__Group__1
+			{
+				pushFollow(FOLLOW_rule__Keyframe_selector__Group__0__Impl_in_rule__Keyframe_selector__Group__08758);
+				rule__Keyframe_selector__Group__0__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				pushFollow(FOLLOW_rule__Keyframe_selector__Group__1_in_rule__Keyframe_selector__Group__08761);
+				rule__Keyframe_selector__Group__1();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Keyframe_selector__Group__0"
+
+
+	// $ANTLR start "rule__Keyframe_selector__Group__0__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4176:1: rule__Keyframe_selector__Group__0__Impl : ( ( rule__Keyframe_selector__Alternatives_0 ) ) ;
+	public final void rule__Keyframe_selector__Group__0__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4180:1: ( ( ( rule__Keyframe_selector__Alternatives_0 ) ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4181:1: ( ( rule__Keyframe_selector__Alternatives_0 ) )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4181:1: ( ( rule__Keyframe_selector__Alternatives_0 ) )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4182:1: ( rule__Keyframe_selector__Alternatives_0 )
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getKeyframe_selectorAccess().getAlternatives_0());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4183:1: ( rule__Keyframe_selector__Alternatives_0 )
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4183:2: rule__Keyframe_selector__Alternatives_0
+					{
+						pushFollow(FOLLOW_rule__Keyframe_selector__Alternatives_0_in_rule__Keyframe_selector__Group__0__Impl8788);
+						rule__Keyframe_selector__Alternatives_0();
+
+						state._fsp--;
+						if (state.failed) {
+							return;
+						}
+
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getKeyframe_selectorAccess().getAlternatives_0());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Keyframe_selector__Group__0__Impl"
+
+
+	// $ANTLR start "rule__Keyframe_selector__Group__1"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4193:1: rule__Keyframe_selector__Group__1 : rule__Keyframe_selector__Group__1__Impl
+	// rule__Keyframe_selector__Group__2 ;
+	public final void rule__Keyframe_selector__Group__1() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4197:1: ( rule__Keyframe_selector__Group__1__Impl rule__Keyframe_selector__Group__2 )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4198:2: rule__Keyframe_selector__Group__1__Impl rule__Keyframe_selector__Group__2
+			{
+				pushFollow(FOLLOW_rule__Keyframe_selector__Group__1__Impl_in_rule__Keyframe_selector__Group__18818);
+				rule__Keyframe_selector__Group__1__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				pushFollow(FOLLOW_rule__Keyframe_selector__Group__2_in_rule__Keyframe_selector__Group__18821);
+				rule__Keyframe_selector__Group__2();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Keyframe_selector__Group__1"
+
+
+	// $ANTLR start "rule__Keyframe_selector__Group__1__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4205:1: rule__Keyframe_selector__Group__1__Impl : ( '{' ) ;
+	public final void rule__Keyframe_selector__Group__1__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4209:1: ( ( '{' ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4210:1: ( '{' )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4210:1: ( '{' )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4211:1: '{'
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getKeyframe_selectorAccess().getLeftCurlyBracketKeyword_1());
+					}
+					match(input, 58, FOLLOW_58_in_rule__Keyframe_selector__Group__1__Impl8849);
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getKeyframe_selectorAccess().getLeftCurlyBracketKeyword_1());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Keyframe_selector__Group__1__Impl"
+
+
+	// $ANTLR start "rule__Keyframe_selector__Group__2"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4224:1: rule__Keyframe_selector__Group__2 : rule__Keyframe_selector__Group__2__Impl
+	// rule__Keyframe_selector__Group__3 ;
+	public final void rule__Keyframe_selector__Group__2() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4228:1: ( rule__Keyframe_selector__Group__2__Impl rule__Keyframe_selector__Group__3 )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4229:2: rule__Keyframe_selector__Group__2__Impl rule__Keyframe_selector__Group__3
+			{
+				pushFollow(FOLLOW_rule__Keyframe_selector__Group__2__Impl_in_rule__Keyframe_selector__Group__28880);
+				rule__Keyframe_selector__Group__2__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				pushFollow(FOLLOW_rule__Keyframe_selector__Group__3_in_rule__Keyframe_selector__Group__28883);
+				rule__Keyframe_selector__Group__3();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Keyframe_selector__Group__2"
+
+
+	// $ANTLR start "rule__Keyframe_selector__Group__2__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4236:1: rule__Keyframe_selector__Group__2__Impl : ( ( rule__Keyframe_selector__DeclarationsAssignment_2 )? )
+	// ;
+	public final void rule__Keyframe_selector__Group__2__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4240:1: ( ( ( rule__Keyframe_selector__DeclarationsAssignment_2 )? ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4241:1: ( ( rule__Keyframe_selector__DeclarationsAssignment_2 )? )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4241:1: ( ( rule__Keyframe_selector__DeclarationsAssignment_2 )? )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4242:1: ( rule__Keyframe_selector__DeclarationsAssignment_2 )?
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getKeyframe_selectorAccess().getDeclarationsAssignment_2());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4243:1: ( rule__Keyframe_selector__DeclarationsAssignment_2 )?
+					int alt55 = 2;
+					int LA55_0 = input.LA(1);
+
+					if (((LA55_0 >= RULE_DASH && LA55_0 <= RULE_UNDERSCORE) || (LA55_0 >= RULE_ONE_HEX_LETTER && LA55_0 <= RULE_ONE_NON_HEX_LETTER) || LA55_0 == RULE_WS || (LA55_0 >= 49 && LA55_0 <= 52))) {
+						alt55 = 1;
+					}
+					switch (alt55) {
+					case 1:
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4243:2: rule__Keyframe_selector__DeclarationsAssignment_2
+					{
+						pushFollow(FOLLOW_rule__Keyframe_selector__DeclarationsAssignment_2_in_rule__Keyframe_selector__Group__2__Impl8910);
+						rule__Keyframe_selector__DeclarationsAssignment_2();
+
+						state._fsp--;
+						if (state.failed) {
+							return;
+						}
+
+					}
+						break;
+
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getKeyframe_selectorAccess().getDeclarationsAssignment_2());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Keyframe_selector__Group__2__Impl"
+
+
+	// $ANTLR start "rule__Keyframe_selector__Group__3"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4253:1: rule__Keyframe_selector__Group__3 : rule__Keyframe_selector__Group__3__Impl
+	// rule__Keyframe_selector__Group__4 ;
+	public final void rule__Keyframe_selector__Group__3() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4257:1: ( rule__Keyframe_selector__Group__3__Impl rule__Keyframe_selector__Group__4 )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4258:2: rule__Keyframe_selector__Group__3__Impl rule__Keyframe_selector__Group__4
+			{
+				pushFollow(FOLLOW_rule__Keyframe_selector__Group__3__Impl_in_rule__Keyframe_selector__Group__38941);
+				rule__Keyframe_selector__Group__3__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				pushFollow(FOLLOW_rule__Keyframe_selector__Group__4_in_rule__Keyframe_selector__Group__38944);
+				rule__Keyframe_selector__Group__4();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Keyframe_selector__Group__3"
+
+
+	// $ANTLR start "rule__Keyframe_selector__Group__3__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4265:1: rule__Keyframe_selector__Group__3__Impl : ( ( rule__Keyframe_selector__Group_3__0 )* ) ;
+	public final void rule__Keyframe_selector__Group__3__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4269:1: ( ( ( rule__Keyframe_selector__Group_3__0 )* ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4270:1: ( ( rule__Keyframe_selector__Group_3__0 )* )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4270:1: ( ( rule__Keyframe_selector__Group_3__0 )* )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4271:1: ( rule__Keyframe_selector__Group_3__0 )*
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getKeyframe_selectorAccess().getGroup_3());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4272:1: ( rule__Keyframe_selector__Group_3__0 )*
+					loop56: do {
+						int alt56 = 2;
+						int LA56_0 = input.LA(1);
+
+						if ((LA56_0 == 48)) {
+							alt56 = 1;
+						}
+
+
+						switch (alt56) {
+						case 1:
+						// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4272:2: rule__Keyframe_selector__Group_3__0
+						{
+							pushFollow(FOLLOW_rule__Keyframe_selector__Group_3__0_in_rule__Keyframe_selector__Group__3__Impl8971);
+							rule__Keyframe_selector__Group_3__0();
+
+							state._fsp--;
+							if (state.failed) {
+								return;
+							}
+
+						}
+							break;
+
+						default:
+							break loop56;
+						}
+					} while (true);
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getKeyframe_selectorAccess().getGroup_3());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Keyframe_selector__Group__3__Impl"
+
+
+	// $ANTLR start "rule__Keyframe_selector__Group__4"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4282:1: rule__Keyframe_selector__Group__4 : rule__Keyframe_selector__Group__4__Impl ;
+	public final void rule__Keyframe_selector__Group__4() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4286:1: ( rule__Keyframe_selector__Group__4__Impl )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4287:2: rule__Keyframe_selector__Group__4__Impl
+			{
+				pushFollow(FOLLOW_rule__Keyframe_selector__Group__4__Impl_in_rule__Keyframe_selector__Group__49002);
+				rule__Keyframe_selector__Group__4__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Keyframe_selector__Group__4"
+
+
+	// $ANTLR start "rule__Keyframe_selector__Group__4__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4293:1: rule__Keyframe_selector__Group__4__Impl : ( '}' ) ;
+	public final void rule__Keyframe_selector__Group__4__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4297:1: ( ( '}' ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4298:1: ( '}' )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4298:1: ( '}' )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4299:1: '}'
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getKeyframe_selectorAccess().getRightCurlyBracketKeyword_4());
+					}
+					match(input, 59, FOLLOW_59_in_rule__Keyframe_selector__Group__4__Impl9030);
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getKeyframe_selectorAccess().getRightCurlyBracketKeyword_4());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Keyframe_selector__Group__4__Impl"
+
+
+	// $ANTLR start "rule__Keyframe_selector__Group_0_1__0"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4322:1: rule__Keyframe_selector__Group_0_1__0 : rule__Keyframe_selector__Group_0_1__0__Impl
+	// rule__Keyframe_selector__Group_0_1__1 ;
+	public final void rule__Keyframe_selector__Group_0_1__0() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4326:1: ( rule__Keyframe_selector__Group_0_1__0__Impl rule__Keyframe_selector__Group_0_1__1 )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4327:2: rule__Keyframe_selector__Group_0_1__0__Impl rule__Keyframe_selector__Group_0_1__1
+			{
+				pushFollow(FOLLOW_rule__Keyframe_selector__Group_0_1__0__Impl_in_rule__Keyframe_selector__Group_0_1__09071);
+				rule__Keyframe_selector__Group_0_1__0__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				pushFollow(FOLLOW_rule__Keyframe_selector__Group_0_1__1_in_rule__Keyframe_selector__Group_0_1__09074);
+				rule__Keyframe_selector__Group_0_1__1();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Keyframe_selector__Group_0_1__0"
+
+
+	// $ANTLR start "rule__Keyframe_selector__Group_0_1__0__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4334:1: rule__Keyframe_selector__Group_0_1__0__Impl : ( ( rule__Keyframe_selector__PercentageAssignment_0_1_0
+	// ) ) ;
+	public final void rule__Keyframe_selector__Group_0_1__0__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4338:1: ( ( ( rule__Keyframe_selector__PercentageAssignment_0_1_0 ) ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4339:1: ( ( rule__Keyframe_selector__PercentageAssignment_0_1_0 ) )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4339:1: ( ( rule__Keyframe_selector__PercentageAssignment_0_1_0 ) )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4340:1: ( rule__Keyframe_selector__PercentageAssignment_0_1_0 )
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getKeyframe_selectorAccess().getPercentageAssignment_0_1_0());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4341:1: ( rule__Keyframe_selector__PercentageAssignment_0_1_0 )
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4341:2: rule__Keyframe_selector__PercentageAssignment_0_1_0
+					{
+						pushFollow(FOLLOW_rule__Keyframe_selector__PercentageAssignment_0_1_0_in_rule__Keyframe_selector__Group_0_1__0__Impl9101);
+						rule__Keyframe_selector__PercentageAssignment_0_1_0();
+
+						state._fsp--;
+						if (state.failed) {
+							return;
+						}
+
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getKeyframe_selectorAccess().getPercentageAssignment_0_1_0());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Keyframe_selector__Group_0_1__0__Impl"
+
+
+	// $ANTLR start "rule__Keyframe_selector__Group_0_1__1"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4351:1: rule__Keyframe_selector__Group_0_1__1 : rule__Keyframe_selector__Group_0_1__1__Impl ;
+	public final void rule__Keyframe_selector__Group_0_1__1() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4355:1: ( rule__Keyframe_selector__Group_0_1__1__Impl )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4356:2: rule__Keyframe_selector__Group_0_1__1__Impl
+			{
+				pushFollow(FOLLOW_rule__Keyframe_selector__Group_0_1__1__Impl_in_rule__Keyframe_selector__Group_0_1__19131);
+				rule__Keyframe_selector__Group_0_1__1__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Keyframe_selector__Group_0_1__1"
+
+
+	// $ANTLR start "rule__Keyframe_selector__Group_0_1__1__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4362:1: rule__Keyframe_selector__Group_0_1__1__Impl : ( RULE_PERCENT ) ;
+	public final void rule__Keyframe_selector__Group_0_1__1__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4366:1: ( ( RULE_PERCENT ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4367:1: ( RULE_PERCENT )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4367:1: ( RULE_PERCENT )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4368:1: RULE_PERCENT
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getKeyframe_selectorAccess().getPERCENTTerminalRuleCall_0_1_1());
+					}
+					match(input, RULE_PERCENT, FOLLOW_RULE_PERCENT_in_rule__Keyframe_selector__Group_0_1__1__Impl9158);
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getKeyframe_selectorAccess().getPERCENTTerminalRuleCall_0_1_1());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Keyframe_selector__Group_0_1__1__Impl"
+
+
+	// $ANTLR start "rule__Keyframe_selector__Group_3__0"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4383:1: rule__Keyframe_selector__Group_3__0 : rule__Keyframe_selector__Group_3__0__Impl
+	// rule__Keyframe_selector__Group_3__1 ;
+	public final void rule__Keyframe_selector__Group_3__0() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4387:1: ( rule__Keyframe_selector__Group_3__0__Impl rule__Keyframe_selector__Group_3__1 )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4388:2: rule__Keyframe_selector__Group_3__0__Impl rule__Keyframe_selector__Group_3__1
+			{
+				pushFollow(FOLLOW_rule__Keyframe_selector__Group_3__0__Impl_in_rule__Keyframe_selector__Group_3__09191);
+				rule__Keyframe_selector__Group_3__0__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				pushFollow(FOLLOW_rule__Keyframe_selector__Group_3__1_in_rule__Keyframe_selector__Group_3__09194);
+				rule__Keyframe_selector__Group_3__1();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Keyframe_selector__Group_3__0"
+
+
+	// $ANTLR start "rule__Keyframe_selector__Group_3__0__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4395:1: rule__Keyframe_selector__Group_3__0__Impl : ( ';' ) ;
+	public final void rule__Keyframe_selector__Group_3__0__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4399:1: ( ( ';' ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4400:1: ( ';' )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4400:1: ( ';' )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4401:1: ';'
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getKeyframe_selectorAccess().getSemicolonKeyword_3_0());
+					}
+					match(input, 48, FOLLOW_48_in_rule__Keyframe_selector__Group_3__0__Impl9222);
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getKeyframe_selectorAccess().getSemicolonKeyword_3_0());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Keyframe_selector__Group_3__0__Impl"
+
+
+	// $ANTLR start "rule__Keyframe_selector__Group_3__1"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4414:1: rule__Keyframe_selector__Group_3__1 : rule__Keyframe_selector__Group_3__1__Impl ;
+	public final void rule__Keyframe_selector__Group_3__1() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4418:1: ( rule__Keyframe_selector__Group_3__1__Impl )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4419:2: rule__Keyframe_selector__Group_3__1__Impl
+			{
+				pushFollow(FOLLOW_rule__Keyframe_selector__Group_3__1__Impl_in_rule__Keyframe_selector__Group_3__19253);
+				rule__Keyframe_selector__Group_3__1__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Keyframe_selector__Group_3__1"
+
+
+	// $ANTLR start "rule__Keyframe_selector__Group_3__1__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4425:1: rule__Keyframe_selector__Group_3__1__Impl : ( ( rule__Keyframe_selector__DeclarationsAssignment_3_1
+	// )? ) ;
+	public final void rule__Keyframe_selector__Group_3__1__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4429:1: ( ( ( rule__Keyframe_selector__DeclarationsAssignment_3_1 )? ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4430:1: ( ( rule__Keyframe_selector__DeclarationsAssignment_3_1 )? )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4430:1: ( ( rule__Keyframe_selector__DeclarationsAssignment_3_1 )? )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4431:1: ( rule__Keyframe_selector__DeclarationsAssignment_3_1 )?
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getKeyframe_selectorAccess().getDeclarationsAssignment_3_1());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4432:1: ( rule__Keyframe_selector__DeclarationsAssignment_3_1 )?
+					int alt57 = 2;
+					int LA57_0 = input.LA(1);
+
+					if (((LA57_0 >= RULE_DASH && LA57_0 <= RULE_UNDERSCORE) || (LA57_0 >= RULE_ONE_HEX_LETTER && LA57_0 <= RULE_ONE_NON_HEX_LETTER) || LA57_0 == RULE_WS || (LA57_0 >= 49 && LA57_0 <= 52))) {
+						alt57 = 1;
+					}
+					switch (alt57) {
+					case 1:
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4432:2: rule__Keyframe_selector__DeclarationsAssignment_3_1
+					{
+						pushFollow(FOLLOW_rule__Keyframe_selector__DeclarationsAssignment_3_1_in_rule__Keyframe_selector__Group_3__1__Impl9280);
+						rule__Keyframe_selector__DeclarationsAssignment_3_1();
+
+						state._fsp--;
+						if (state.failed) {
+							return;
+						}
+
+					}
+						break;
+
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getKeyframe_selectorAccess().getDeclarationsAssignment_3_1());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Keyframe_selector__Group_3__1__Impl"
+
+
+	// $ANTLR start "rule__Ruleset__Group__0"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4446:1: rule__Ruleset__Group__0 : rule__Ruleset__Group__0__Impl rule__Ruleset__Group__1 ;
+	public final void rule__Ruleset__Group__0() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4450:1: ( rule__Ruleset__Group__0__Impl rule__Ruleset__Group__1 )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4451:2: rule__Ruleset__Group__0__Impl rule__Ruleset__Group__1
+			{
+				pushFollow(FOLLOW_rule__Ruleset__Group__0__Impl_in_rule__Ruleset__Group__09315);
+				rule__Ruleset__Group__0__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				pushFollow(FOLLOW_rule__Ruleset__Group__1_in_rule__Ruleset__Group__09318);
+				rule__Ruleset__Group__1();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Ruleset__Group__0"
+
+
+	// $ANTLR start "rule__Ruleset__Group__0__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4458:1: rule__Ruleset__Group__0__Impl : ( ( rule__Ruleset__SelectorsAssignment_0 ) ) ;
+	public final void rule__Ruleset__Group__0__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4462:1: ( ( ( rule__Ruleset__SelectorsAssignment_0 ) ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4463:1: ( ( rule__Ruleset__SelectorsAssignment_0 ) )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4463:1: ( ( rule__Ruleset__SelectorsAssignment_0 ) )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4464:1: ( rule__Ruleset__SelectorsAssignment_0 )
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getRulesetAccess().getSelectorsAssignment_0());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4465:1: ( rule__Ruleset__SelectorsAssignment_0 )
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4465:2: rule__Ruleset__SelectorsAssignment_0
+					{
+						pushFollow(FOLLOW_rule__Ruleset__SelectorsAssignment_0_in_rule__Ruleset__Group__0__Impl9345);
+						rule__Ruleset__SelectorsAssignment_0();
+
+						state._fsp--;
+						if (state.failed) {
+							return;
+						}
+
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getRulesetAccess().getSelectorsAssignment_0());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Ruleset__Group__0__Impl"
+
+
+	// $ANTLR start "rule__Ruleset__Group__1"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4475:1: rule__Ruleset__Group__1 : rule__Ruleset__Group__1__Impl rule__Ruleset__Group__2 ;
+	public final void rule__Ruleset__Group__1() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4479:1: ( rule__Ruleset__Group__1__Impl rule__Ruleset__Group__2 )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4480:2: rule__Ruleset__Group__1__Impl rule__Ruleset__Group__2
+			{
+				pushFollow(FOLLOW_rule__Ruleset__Group__1__Impl_in_rule__Ruleset__Group__19375);
+				rule__Ruleset__Group__1__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				pushFollow(FOLLOW_rule__Ruleset__Group__2_in_rule__Ruleset__Group__19378);
+				rule__Ruleset__Group__2();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Ruleset__Group__1"
+
+
+	// $ANTLR start "rule__Ruleset__Group__1__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4487:1: rule__Ruleset__Group__1__Impl : ( ( rule__Ruleset__Group_1__0 )* ) ;
+	public final void rule__Ruleset__Group__1__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4491:1: ( ( ( rule__Ruleset__Group_1__0 )* ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4492:1: ( ( rule__Ruleset__Group_1__0 )* )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4492:1: ( ( rule__Ruleset__Group_1__0 )* )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4493:1: ( rule__Ruleset__Group_1__0 )*
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getRulesetAccess().getGroup_1());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4494:1: ( rule__Ruleset__Group_1__0 )*
+					loop58: do {
+						int alt58 = 2;
+						alt58 = dfa58.predict(input);
+						switch (alt58) {
+						case 1:
+						// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4494:2: rule__Ruleset__Group_1__0
+						{
+							pushFollow(FOLLOW_rule__Ruleset__Group_1__0_in_rule__Ruleset__Group__1__Impl9405);
+							rule__Ruleset__Group_1__0();
+
+							state._fsp--;
+							if (state.failed) {
+								return;
+							}
+
+						}
+							break;
+
+						default:
+							break loop58;
+						}
+					} while (true);
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getRulesetAccess().getGroup_1());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Ruleset__Group__1__Impl"
+
+
+	// $ANTLR start "rule__Ruleset__Group__2"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4504:1: rule__Ruleset__Group__2 : rule__Ruleset__Group__2__Impl rule__Ruleset__Group__3 ;
+	public final void rule__Ruleset__Group__2() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4508:1: ( rule__Ruleset__Group__2__Impl rule__Ruleset__Group__3 )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4509:2: rule__Ruleset__Group__2__Impl rule__Ruleset__Group__3
+			{
+				pushFollow(FOLLOW_rule__Ruleset__Group__2__Impl_in_rule__Ruleset__Group__29436);
+				rule__Ruleset__Group__2__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				pushFollow(FOLLOW_rule__Ruleset__Group__3_in_rule__Ruleset__Group__29439);
+				rule__Ruleset__Group__3();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Ruleset__Group__2"
+
+
+	// $ANTLR start "rule__Ruleset__Group__2__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4516:1: rule__Ruleset__Group__2__Impl : ( ( RULE_WS )* ) ;
+	public final void rule__Ruleset__Group__2__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4520:1: ( ( ( RULE_WS )* ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4521:1: ( ( RULE_WS )* )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4521:1: ( ( RULE_WS )* )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4522:1: ( RULE_WS )*
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getRulesetAccess().getWSTerminalRuleCall_2());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4523:1: ( RULE_WS )*
+					loop59: do {
+						int alt59 = 2;
+						int LA59_0 = input.LA(1);
+
+						if ((LA59_0 == RULE_WS)) {
+							alt59 = 1;
+						}
+
+
+						switch (alt59) {
+						case 1:
+						// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4523:3: RULE_WS
+						{
+							match(input, RULE_WS, FOLLOW_RULE_WS_in_rule__Ruleset__Group__2__Impl9467);
+							if (state.failed) {
+								return;
+							}
+
+						}
+							break;
+
+						default:
+							break loop59;
+						}
+					} while (true);
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getRulesetAccess().getWSTerminalRuleCall_2());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Ruleset__Group__2__Impl"
+
+
+	// $ANTLR start "rule__Ruleset__Group__3"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4533:1: rule__Ruleset__Group__3 : rule__Ruleset__Group__3__Impl rule__Ruleset__Group__4 ;
+	public final void rule__Ruleset__Group__3() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4537:1: ( rule__Ruleset__Group__3__Impl rule__Ruleset__Group__4 )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4538:2: rule__Ruleset__Group__3__Impl rule__Ruleset__Group__4
+			{
+				pushFollow(FOLLOW_rule__Ruleset__Group__3__Impl_in_rule__Ruleset__Group__39498);
+				rule__Ruleset__Group__3__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				pushFollow(FOLLOW_rule__Ruleset__Group__4_in_rule__Ruleset__Group__39501);
+				rule__Ruleset__Group__4();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Ruleset__Group__3"
+
+
+	// $ANTLR start "rule__Ruleset__Group__3__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4545:1: rule__Ruleset__Group__3__Impl : ( '{' ) ;
+	public final void rule__Ruleset__Group__3__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4549:1: ( ( '{' ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4550:1: ( '{' )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4550:1: ( '{' )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4551:1: '{'
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getRulesetAccess().getLeftCurlyBracketKeyword_3());
+					}
+					match(input, 58, FOLLOW_58_in_rule__Ruleset__Group__3__Impl9529);
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getRulesetAccess().getLeftCurlyBracketKeyword_3());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Ruleset__Group__3__Impl"
+
+
+	// $ANTLR start "rule__Ruleset__Group__4"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4564:1: rule__Ruleset__Group__4 : rule__Ruleset__Group__4__Impl rule__Ruleset__Group__5 ;
+	public final void rule__Ruleset__Group__4() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4568:1: ( rule__Ruleset__Group__4__Impl rule__Ruleset__Group__5 )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4569:2: rule__Ruleset__Group__4__Impl rule__Ruleset__Group__5
+			{
+				pushFollow(FOLLOW_rule__Ruleset__Group__4__Impl_in_rule__Ruleset__Group__49560);
+				rule__Ruleset__Group__4__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				pushFollow(FOLLOW_rule__Ruleset__Group__5_in_rule__Ruleset__Group__49563);
+				rule__Ruleset__Group__5();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Ruleset__Group__4"
+
+
+	// $ANTLR start "rule__Ruleset__Group__4__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4576:1: rule__Ruleset__Group__4__Impl : ( ( rule__Ruleset__Group_4__0 )? ) ;
+	public final void rule__Ruleset__Group__4__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4580:1: ( ( ( rule__Ruleset__Group_4__0 )? ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4581:1: ( ( rule__Ruleset__Group_4__0 )? )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4581:1: ( ( rule__Ruleset__Group_4__0 )? )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4582:1: ( rule__Ruleset__Group_4__0 )?
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getRulesetAccess().getGroup_4());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4583:1: ( rule__Ruleset__Group_4__0 )?
+					int alt60 = 2;
+					int LA60_0 = input.LA(1);
+
+					if (((LA60_0 >= RULE_DASH && LA60_0 <= RULE_UNDERSCORE) || (LA60_0 >= RULE_ONE_HEX_LETTER && LA60_0 <= RULE_ONE_NON_HEX_LETTER) || LA60_0 == RULE_WS || (LA60_0 >= 49 && LA60_0 <= 52))) {
+						alt60 = 1;
+					}
+					switch (alt60) {
+					case 1:
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4583:2: rule__Ruleset__Group_4__0
+					{
+						pushFollow(FOLLOW_rule__Ruleset__Group_4__0_in_rule__Ruleset__Group__4__Impl9590);
+						rule__Ruleset__Group_4__0();
+
+						state._fsp--;
+						if (state.failed) {
+							return;
+						}
+
+					}
+						break;
+
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getRulesetAccess().getGroup_4());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Ruleset__Group__4__Impl"
+
+
+	// $ANTLR start "rule__Ruleset__Group__5"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4593:1: rule__Ruleset__Group__5 : rule__Ruleset__Group__5__Impl ;
+	public final void rule__Ruleset__Group__5() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4597:1: ( rule__Ruleset__Group__5__Impl )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4598:2: rule__Ruleset__Group__5__Impl
+			{
+				pushFollow(FOLLOW_rule__Ruleset__Group__5__Impl_in_rule__Ruleset__Group__59621);
+				rule__Ruleset__Group__5__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Ruleset__Group__5"
+
+
+	// $ANTLR start "rule__Ruleset__Group__5__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4604:1: rule__Ruleset__Group__5__Impl : ( '}' ) ;
+	public final void rule__Ruleset__Group__5__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4608:1: ( ( '}' ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4609:1: ( '}' )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4609:1: ( '}' )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4610:1: '}'
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getRulesetAccess().getRightCurlyBracketKeyword_5());
+					}
+					match(input, 59, FOLLOW_59_in_rule__Ruleset__Group__5__Impl9649);
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getRulesetAccess().getRightCurlyBracketKeyword_5());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Ruleset__Group__5__Impl"
+
+
+	// $ANTLR start "rule__Ruleset__Group_1__0"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4635:1: rule__Ruleset__Group_1__0 : rule__Ruleset__Group_1__0__Impl rule__Ruleset__Group_1__1 ;
+	public final void rule__Ruleset__Group_1__0() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4639:1: ( rule__Ruleset__Group_1__0__Impl rule__Ruleset__Group_1__1 )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4640:2: rule__Ruleset__Group_1__0__Impl rule__Ruleset__Group_1__1
+			{
+				pushFollow(FOLLOW_rule__Ruleset__Group_1__0__Impl_in_rule__Ruleset__Group_1__09692);
+				rule__Ruleset__Group_1__0__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				pushFollow(FOLLOW_rule__Ruleset__Group_1__1_in_rule__Ruleset__Group_1__09695);
+				rule__Ruleset__Group_1__1();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Ruleset__Group_1__0"
+
+
+	// $ANTLR start "rule__Ruleset__Group_1__0__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4647:1: rule__Ruleset__Group_1__0__Impl : ( ( RULE_WS )* ) ;
+	public final void rule__Ruleset__Group_1__0__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4651:1: ( ( ( RULE_WS )* ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4652:1: ( ( RULE_WS )* )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4652:1: ( ( RULE_WS )* )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4653:1: ( RULE_WS )*
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getRulesetAccess().getWSTerminalRuleCall_1_0());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4654:1: ( RULE_WS )*
+					loop61: do {
+						int alt61 = 2;
+						int LA61_0 = input.LA(1);
+
+						if ((LA61_0 == RULE_WS)) {
+							alt61 = 1;
+						}
+
+
+						switch (alt61) {
+						case 1:
+						// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4654:3: RULE_WS
+						{
+							match(input, RULE_WS, FOLLOW_RULE_WS_in_rule__Ruleset__Group_1__0__Impl9723);
+							if (state.failed) {
+								return;
+							}
+
+						}
+							break;
+
+						default:
+							break loop61;
+						}
+					} while (true);
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getRulesetAccess().getWSTerminalRuleCall_1_0());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Ruleset__Group_1__0__Impl"
+
+
+	// $ANTLR start "rule__Ruleset__Group_1__1"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4664:1: rule__Ruleset__Group_1__1 : rule__Ruleset__Group_1__1__Impl rule__Ruleset__Group_1__2 ;
+	public final void rule__Ruleset__Group_1__1() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4668:1: ( rule__Ruleset__Group_1__1__Impl rule__Ruleset__Group_1__2 )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4669:2: rule__Ruleset__Group_1__1__Impl rule__Ruleset__Group_1__2
+			{
+				pushFollow(FOLLOW_rule__Ruleset__Group_1__1__Impl_in_rule__Ruleset__Group_1__19754);
+				rule__Ruleset__Group_1__1__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				pushFollow(FOLLOW_rule__Ruleset__Group_1__2_in_rule__Ruleset__Group_1__19757);
+				rule__Ruleset__Group_1__2();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Ruleset__Group_1__1"
+
+
+	// $ANTLR start "rule__Ruleset__Group_1__1__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4676:1: rule__Ruleset__Group_1__1__Impl : ( RULE_COMMA ) ;
+	public final void rule__Ruleset__Group_1__1__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4680:1: ( ( RULE_COMMA ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4681:1: ( RULE_COMMA )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4681:1: ( RULE_COMMA )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4682:1: RULE_COMMA
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getRulesetAccess().getCOMMATerminalRuleCall_1_1());
+					}
+					match(input, RULE_COMMA, FOLLOW_RULE_COMMA_in_rule__Ruleset__Group_1__1__Impl9784);
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getRulesetAccess().getCOMMATerminalRuleCall_1_1());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Ruleset__Group_1__1__Impl"
+
+
+	// $ANTLR start "rule__Ruleset__Group_1__2"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4693:1: rule__Ruleset__Group_1__2 : rule__Ruleset__Group_1__2__Impl ;
+	public final void rule__Ruleset__Group_1__2() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4697:1: ( rule__Ruleset__Group_1__2__Impl )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4698:2: rule__Ruleset__Group_1__2__Impl
+			{
+				pushFollow(FOLLOW_rule__Ruleset__Group_1__2__Impl_in_rule__Ruleset__Group_1__29813);
+				rule__Ruleset__Group_1__2__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Ruleset__Group_1__2"
+
+
+	// $ANTLR start "rule__Ruleset__Group_1__2__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4704:1: rule__Ruleset__Group_1__2__Impl : ( ( rule__Ruleset__SelectorsAssignment_1_2 ) ) ;
+	public final void rule__Ruleset__Group_1__2__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4708:1: ( ( ( rule__Ruleset__SelectorsAssignment_1_2 ) ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4709:1: ( ( rule__Ruleset__SelectorsAssignment_1_2 ) )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4709:1: ( ( rule__Ruleset__SelectorsAssignment_1_2 ) )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4710:1: ( rule__Ruleset__SelectorsAssignment_1_2 )
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getRulesetAccess().getSelectorsAssignment_1_2());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4711:1: ( rule__Ruleset__SelectorsAssignment_1_2 )
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4711:2: rule__Ruleset__SelectorsAssignment_1_2
+					{
+						pushFollow(FOLLOW_rule__Ruleset__SelectorsAssignment_1_2_in_rule__Ruleset__Group_1__2__Impl9840);
+						rule__Ruleset__SelectorsAssignment_1_2();
+
+						state._fsp--;
+						if (state.failed) {
+							return;
+						}
+
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getRulesetAccess().getSelectorsAssignment_1_2());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Ruleset__Group_1__2__Impl"
+
+
+	// $ANTLR start "rule__Ruleset__Group_4__0"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4727:1: rule__Ruleset__Group_4__0 : rule__Ruleset__Group_4__0__Impl rule__Ruleset__Group_4__1 ;
+	public final void rule__Ruleset__Group_4__0() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4731:1: ( rule__Ruleset__Group_4__0__Impl rule__Ruleset__Group_4__1 )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4732:2: rule__Ruleset__Group_4__0__Impl rule__Ruleset__Group_4__1
+			{
+				pushFollow(FOLLOW_rule__Ruleset__Group_4__0__Impl_in_rule__Ruleset__Group_4__09876);
+				rule__Ruleset__Group_4__0__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				pushFollow(FOLLOW_rule__Ruleset__Group_4__1_in_rule__Ruleset__Group_4__09879);
+				rule__Ruleset__Group_4__1();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Ruleset__Group_4__0"
+
+
+	// $ANTLR start "rule__Ruleset__Group_4__0__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4739:1: rule__Ruleset__Group_4__0__Impl : ( ( rule__Ruleset__DeclarationsAssignment_4_0 ) ) ;
+	public final void rule__Ruleset__Group_4__0__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4743:1: ( ( ( rule__Ruleset__DeclarationsAssignment_4_0 ) ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4744:1: ( ( rule__Ruleset__DeclarationsAssignment_4_0 ) )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4744:1: ( ( rule__Ruleset__DeclarationsAssignment_4_0 ) )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4745:1: ( rule__Ruleset__DeclarationsAssignment_4_0 )
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getRulesetAccess().getDeclarationsAssignment_4_0());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4746:1: ( rule__Ruleset__DeclarationsAssignment_4_0 )
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4746:2: rule__Ruleset__DeclarationsAssignment_4_0
+					{
+						pushFollow(FOLLOW_rule__Ruleset__DeclarationsAssignment_4_0_in_rule__Ruleset__Group_4__0__Impl9906);
+						rule__Ruleset__DeclarationsAssignment_4_0();
+
+						state._fsp--;
+						if (state.failed) {
+							return;
+						}
+
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getRulesetAccess().getDeclarationsAssignment_4_0());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Ruleset__Group_4__0__Impl"
+
+
+	// $ANTLR start "rule__Ruleset__Group_4__1"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4756:1: rule__Ruleset__Group_4__1 : rule__Ruleset__Group_4__1__Impl rule__Ruleset__Group_4__2 ;
+	public final void rule__Ruleset__Group_4__1() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4760:1: ( rule__Ruleset__Group_4__1__Impl rule__Ruleset__Group_4__2 )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4761:2: rule__Ruleset__Group_4__1__Impl rule__Ruleset__Group_4__2
+			{
+				pushFollow(FOLLOW_rule__Ruleset__Group_4__1__Impl_in_rule__Ruleset__Group_4__19936);
+				rule__Ruleset__Group_4__1__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				pushFollow(FOLLOW_rule__Ruleset__Group_4__2_in_rule__Ruleset__Group_4__19939);
+				rule__Ruleset__Group_4__2();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Ruleset__Group_4__1"
+
+
+	// $ANTLR start "rule__Ruleset__Group_4__1__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4768:1: rule__Ruleset__Group_4__1__Impl : ( ( rule__Ruleset__Group_4_1__0 )* ) ;
+	public final void rule__Ruleset__Group_4__1__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4772:1: ( ( ( rule__Ruleset__Group_4_1__0 )* ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4773:1: ( ( rule__Ruleset__Group_4_1__0 )* )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4773:1: ( ( rule__Ruleset__Group_4_1__0 )* )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4774:1: ( rule__Ruleset__Group_4_1__0 )*
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getRulesetAccess().getGroup_4_1());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4775:1: ( rule__Ruleset__Group_4_1__0 )*
+					loop62: do {
+						int alt62 = 2;
+						int LA62_0 = input.LA(1);
+
+						if ((LA62_0 == 48)) {
+							int LA62_1 = input.LA(2);
+
+							if (((LA62_1 >= RULE_DASH && LA62_1 <= RULE_UNDERSCORE) || (LA62_1 >= RULE_ONE_HEX_LETTER && LA62_1 <= RULE_ONE_NON_HEX_LETTER) || LA62_1 == RULE_WS || (LA62_1 >= 49 && LA62_1 <= 52))) {
+								alt62 = 1;
+							}
+
+
+						}
+
+
+						switch (alt62) {
+						case 1:
+						// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4775:2: rule__Ruleset__Group_4_1__0
+						{
+							pushFollow(FOLLOW_rule__Ruleset__Group_4_1__0_in_rule__Ruleset__Group_4__1__Impl9966);
+							rule__Ruleset__Group_4_1__0();
+
+							state._fsp--;
+							if (state.failed) {
+								return;
+							}
+
+						}
+							break;
+
+						default:
+							break loop62;
+						}
+					} while (true);
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getRulesetAccess().getGroup_4_1());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Ruleset__Group_4__1__Impl"
+
+
+	// $ANTLR start "rule__Ruleset__Group_4__2"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4785:1: rule__Ruleset__Group_4__2 : rule__Ruleset__Group_4__2__Impl ;
+	public final void rule__Ruleset__Group_4__2() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4789:1: ( rule__Ruleset__Group_4__2__Impl )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4790:2: rule__Ruleset__Group_4__2__Impl
+			{
+				pushFollow(FOLLOW_rule__Ruleset__Group_4__2__Impl_in_rule__Ruleset__Group_4__29997);
+				rule__Ruleset__Group_4__2__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Ruleset__Group_4__2"
+
+
+	// $ANTLR start "rule__Ruleset__Group_4__2__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4796:1: rule__Ruleset__Group_4__2__Impl : ( ( ';' )? ) ;
+	public final void rule__Ruleset__Group_4__2__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4800:1: ( ( ( ';' )? ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4801:1: ( ( ';' )? )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4801:1: ( ( ';' )? )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4802:1: ( ';' )?
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getRulesetAccess().getSemicolonKeyword_4_2());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4803:1: ( ';' )?
+					int alt63 = 2;
+					int LA63_0 = input.LA(1);
+
+					if ((LA63_0 == 48)) {
+						alt63 = 1;
+					}
+					switch (alt63) {
+					case 1:
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4804:2: ';'
+					{
+						match(input, 48, FOLLOW_48_in_rule__Ruleset__Group_4__2__Impl10026);
+						if (state.failed) {
+							return;
+						}
+
+					}
+						break;
+
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getRulesetAccess().getSemicolonKeyword_4_2());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Ruleset__Group_4__2__Impl"
+
+
+	// $ANTLR start "rule__Ruleset__Group_4_1__0"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4821:1: rule__Ruleset__Group_4_1__0 : rule__Ruleset__Group_4_1__0__Impl rule__Ruleset__Group_4_1__1 ;
+	public final void rule__Ruleset__Group_4_1__0() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4825:1: ( rule__Ruleset__Group_4_1__0__Impl rule__Ruleset__Group_4_1__1 )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4826:2: rule__Ruleset__Group_4_1__0__Impl rule__Ruleset__Group_4_1__1
+			{
+				pushFollow(FOLLOW_rule__Ruleset__Group_4_1__0__Impl_in_rule__Ruleset__Group_4_1__010065);
+				rule__Ruleset__Group_4_1__0__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				pushFollow(FOLLOW_rule__Ruleset__Group_4_1__1_in_rule__Ruleset__Group_4_1__010068);
+				rule__Ruleset__Group_4_1__1();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Ruleset__Group_4_1__0"
+
+
+	// $ANTLR start "rule__Ruleset__Group_4_1__0__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4833:1: rule__Ruleset__Group_4_1__0__Impl : ( ';' ) ;
+	public final void rule__Ruleset__Group_4_1__0__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4837:1: ( ( ';' ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4838:1: ( ';' )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4838:1: ( ';' )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4839:1: ';'
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getRulesetAccess().getSemicolonKeyword_4_1_0());
+					}
+					match(input, 48, FOLLOW_48_in_rule__Ruleset__Group_4_1__0__Impl10096);
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getRulesetAccess().getSemicolonKeyword_4_1_0());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Ruleset__Group_4_1__0__Impl"
+
+
+	// $ANTLR start "rule__Ruleset__Group_4_1__1"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4852:1: rule__Ruleset__Group_4_1__1 : rule__Ruleset__Group_4_1__1__Impl ;
+	public final void rule__Ruleset__Group_4_1__1() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4856:1: ( rule__Ruleset__Group_4_1__1__Impl )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4857:2: rule__Ruleset__Group_4_1__1__Impl
+			{
+				pushFollow(FOLLOW_rule__Ruleset__Group_4_1__1__Impl_in_rule__Ruleset__Group_4_1__110127);
+				rule__Ruleset__Group_4_1__1__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Ruleset__Group_4_1__1"
+
+
+	// $ANTLR start "rule__Ruleset__Group_4_1__1__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4863:1: rule__Ruleset__Group_4_1__1__Impl : ( ( rule__Ruleset__DeclarationsAssignment_4_1_1 ) ) ;
+	public final void rule__Ruleset__Group_4_1__1__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4867:1: ( ( ( rule__Ruleset__DeclarationsAssignment_4_1_1 ) ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4868:1: ( ( rule__Ruleset__DeclarationsAssignment_4_1_1 ) )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4868:1: ( ( rule__Ruleset__DeclarationsAssignment_4_1_1 ) )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4869:1: ( rule__Ruleset__DeclarationsAssignment_4_1_1 )
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getRulesetAccess().getDeclarationsAssignment_4_1_1());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4870:1: ( rule__Ruleset__DeclarationsAssignment_4_1_1 )
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4870:2: rule__Ruleset__DeclarationsAssignment_4_1_1
+					{
+						pushFollow(FOLLOW_rule__Ruleset__DeclarationsAssignment_4_1_1_in_rule__Ruleset__Group_4_1__1__Impl10154);
+						rule__Ruleset__DeclarationsAssignment_4_1_1();
+
+						state._fsp--;
+						if (state.failed) {
+							return;
+						}
+
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getRulesetAccess().getDeclarationsAssignment_4_1_1());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Ruleset__Group_4_1__1__Impl"
+
+
+	// $ANTLR start "rule__Selector__Group__0"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4884:1: rule__Selector__Group__0 : rule__Selector__Group__0__Impl rule__Selector__Group__1 ;
+	public final void rule__Selector__Group__0() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4888:1: ( rule__Selector__Group__0__Impl rule__Selector__Group__1 )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4889:2: rule__Selector__Group__0__Impl rule__Selector__Group__1
+			{
+				pushFollow(FOLLOW_rule__Selector__Group__0__Impl_in_rule__Selector__Group__010188);
+				rule__Selector__Group__0__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				pushFollow(FOLLOW_rule__Selector__Group__1_in_rule__Selector__Group__010191);
+				rule__Selector__Group__1();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Selector__Group__0"
+
+
+	// $ANTLR start "rule__Selector__Group__0__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4896:1: rule__Selector__Group__0__Impl : ( ( rule__Selector__SimpleselectorsAssignment_0 ) ) ;
+	public final void rule__Selector__Group__0__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4900:1: ( ( ( rule__Selector__SimpleselectorsAssignment_0 ) ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4901:1: ( ( rule__Selector__SimpleselectorsAssignment_0 ) )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4901:1: ( ( rule__Selector__SimpleselectorsAssignment_0 ) )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4902:1: ( rule__Selector__SimpleselectorsAssignment_0 )
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getSelectorAccess().getSimpleselectorsAssignment_0());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4903:1: ( rule__Selector__SimpleselectorsAssignment_0 )
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4903:2: rule__Selector__SimpleselectorsAssignment_0
+					{
+						pushFollow(FOLLOW_rule__Selector__SimpleselectorsAssignment_0_in_rule__Selector__Group__0__Impl10218);
+						rule__Selector__SimpleselectorsAssignment_0();
+
+						state._fsp--;
+						if (state.failed) {
+							return;
+						}
+
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getSelectorAccess().getSimpleselectorsAssignment_0());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Selector__Group__0__Impl"
+
+
+	// $ANTLR start "rule__Selector__Group__1"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4913:1: rule__Selector__Group__1 : rule__Selector__Group__1__Impl ;
+	public final void rule__Selector__Group__1() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4917:1: ( rule__Selector__Group__1__Impl )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4918:2: rule__Selector__Group__1__Impl
+			{
+				pushFollow(FOLLOW_rule__Selector__Group__1__Impl_in_rule__Selector__Group__110248);
+				rule__Selector__Group__1__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Selector__Group__1"
+
+
+	// $ANTLR start "rule__Selector__Group__1__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4924:1: rule__Selector__Group__1__Impl : ( ( rule__Selector__Alternatives_1 )? ) ;
+	public final void rule__Selector__Group__1__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4928:1: ( ( ( rule__Selector__Alternatives_1 )? ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4929:1: ( ( rule__Selector__Alternatives_1 )? )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4929:1: ( ( rule__Selector__Alternatives_1 )? )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4930:1: ( rule__Selector__Alternatives_1 )?
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getSelectorAccess().getAlternatives_1());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4931:1: ( rule__Selector__Alternatives_1 )?
+					int alt64 = 2;
+					alt64 = dfa64.predict(input);
+					switch (alt64) {
+					case 1:
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4931:2: rule__Selector__Alternatives_1
+					{
+						pushFollow(FOLLOW_rule__Selector__Alternatives_1_in_rule__Selector__Group__1__Impl10275);
+						rule__Selector__Alternatives_1();
+
+						state._fsp--;
+						if (state.failed) {
+							return;
+						}
+
+					}
+						break;
+
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getSelectorAccess().getAlternatives_1());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Selector__Group__1__Impl"
+
+
+	// $ANTLR start "rule__Selector__Group_1_0__0"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4945:1: rule__Selector__Group_1_0__0 : rule__Selector__Group_1_0__0__Impl rule__Selector__Group_1_0__1 ;
+	public final void rule__Selector__Group_1_0__0() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4949:1: ( rule__Selector__Group_1_0__0__Impl rule__Selector__Group_1_0__1 )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4950:2: rule__Selector__Group_1_0__0__Impl rule__Selector__Group_1_0__1
+			{
+				pushFollow(FOLLOW_rule__Selector__Group_1_0__0__Impl_in_rule__Selector__Group_1_0__010310);
+				rule__Selector__Group_1_0__0__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				pushFollow(FOLLOW_rule__Selector__Group_1_0__1_in_rule__Selector__Group_1_0__010313);
+				rule__Selector__Group_1_0__1();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Selector__Group_1_0__0"
+
+
+	// $ANTLR start "rule__Selector__Group_1_0__0__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4957:1: rule__Selector__Group_1_0__0__Impl : ( ( rule__Selector__CombinatorAssignment_1_0_0 ) ) ;
+	public final void rule__Selector__Group_1_0__0__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4961:1: ( ( ( rule__Selector__CombinatorAssignment_1_0_0 ) ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4962:1: ( ( rule__Selector__CombinatorAssignment_1_0_0 ) )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4962:1: ( ( rule__Selector__CombinatorAssignment_1_0_0 ) )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4963:1: ( rule__Selector__CombinatorAssignment_1_0_0 )
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getSelectorAccess().getCombinatorAssignment_1_0_0());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4964:1: ( rule__Selector__CombinatorAssignment_1_0_0 )
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4964:2: rule__Selector__CombinatorAssignment_1_0_0
+					{
+						pushFollow(FOLLOW_rule__Selector__CombinatorAssignment_1_0_0_in_rule__Selector__Group_1_0__0__Impl10340);
+						rule__Selector__CombinatorAssignment_1_0_0();
+
+						state._fsp--;
+						if (state.failed) {
+							return;
+						}
+
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getSelectorAccess().getCombinatorAssignment_1_0_0());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Selector__Group_1_0__0__Impl"
+
+
+	// $ANTLR start "rule__Selector__Group_1_0__1"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4974:1: rule__Selector__Group_1_0__1 : rule__Selector__Group_1_0__1__Impl rule__Selector__Group_1_0__2 ;
+	public final void rule__Selector__Group_1_0__1() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4978:1: ( rule__Selector__Group_1_0__1__Impl rule__Selector__Group_1_0__2 )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4979:2: rule__Selector__Group_1_0__1__Impl rule__Selector__Group_1_0__2
+			{
+				pushFollow(FOLLOW_rule__Selector__Group_1_0__1__Impl_in_rule__Selector__Group_1_0__110370);
+				rule__Selector__Group_1_0__1__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				pushFollow(FOLLOW_rule__Selector__Group_1_0__2_in_rule__Selector__Group_1_0__110373);
+				rule__Selector__Group_1_0__2();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Selector__Group_1_0__1"
+
+
+	// $ANTLR start "rule__Selector__Group_1_0__1__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4986:1: rule__Selector__Group_1_0__1__Impl : ( ( RULE_WS )* ) ;
+	public final void rule__Selector__Group_1_0__1__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4990:1: ( ( ( RULE_WS )* ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4991:1: ( ( RULE_WS )* )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4991:1: ( ( RULE_WS )* )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4992:1: ( RULE_WS )*
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getSelectorAccess().getWSTerminalRuleCall_1_0_1());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4993:1: ( RULE_WS )*
+					loop65: do {
+						int alt65 = 2;
+						int LA65_0 = input.LA(1);
+
+						if ((LA65_0 == RULE_WS)) {
+							alt65 = 1;
+						}
+
+
+						switch (alt65) {
+						case 1:
+						// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:4993:3: RULE_WS
+						{
+							match(input, RULE_WS, FOLLOW_RULE_WS_in_rule__Selector__Group_1_0__1__Impl10401);
+							if (state.failed) {
+								return;
+							}
+
+						}
+							break;
+
+						default:
+							break loop65;
+						}
+					} while (true);
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getSelectorAccess().getWSTerminalRuleCall_1_0_1());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Selector__Group_1_0__1__Impl"
+
+
+	// $ANTLR start "rule__Selector__Group_1_0__2"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5003:1: rule__Selector__Group_1_0__2 : rule__Selector__Group_1_0__2__Impl ;
+	public final void rule__Selector__Group_1_0__2() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5007:1: ( rule__Selector__Group_1_0__2__Impl )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5008:2: rule__Selector__Group_1_0__2__Impl
+			{
+				pushFollow(FOLLOW_rule__Selector__Group_1_0__2__Impl_in_rule__Selector__Group_1_0__210432);
+				rule__Selector__Group_1_0__2__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Selector__Group_1_0__2"
+
+
+	// $ANTLR start "rule__Selector__Group_1_0__2__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5014:1: rule__Selector__Group_1_0__2__Impl : ( ( rule__Selector__SelectorAssignment_1_0_2 ) ) ;
+	public final void rule__Selector__Group_1_0__2__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5018:1: ( ( ( rule__Selector__SelectorAssignment_1_0_2 ) ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5019:1: ( ( rule__Selector__SelectorAssignment_1_0_2 ) )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5019:1: ( ( rule__Selector__SelectorAssignment_1_0_2 ) )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5020:1: ( rule__Selector__SelectorAssignment_1_0_2 )
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getSelectorAccess().getSelectorAssignment_1_0_2());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5021:1: ( rule__Selector__SelectorAssignment_1_0_2 )
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5021:2: rule__Selector__SelectorAssignment_1_0_2
+					{
+						pushFollow(FOLLOW_rule__Selector__SelectorAssignment_1_0_2_in_rule__Selector__Group_1_0__2__Impl10459);
+						rule__Selector__SelectorAssignment_1_0_2();
+
+						state._fsp--;
+						if (state.failed) {
+							return;
+						}
+
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getSelectorAccess().getSelectorAssignment_1_0_2());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Selector__Group_1_0__2__Impl"
+
+
+	// $ANTLR start "rule__Selector__Group_1_1__0"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5037:1: rule__Selector__Group_1_1__0 : rule__Selector__Group_1_1__0__Impl rule__Selector__Group_1_1__1 ;
+	public final void rule__Selector__Group_1_1__0() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5041:1: ( rule__Selector__Group_1_1__0__Impl rule__Selector__Group_1_1__1 )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5042:2: rule__Selector__Group_1_1__0__Impl rule__Selector__Group_1_1__1
+			{
+				pushFollow(FOLLOW_rule__Selector__Group_1_1__0__Impl_in_rule__Selector__Group_1_1__010495);
+				rule__Selector__Group_1_1__0__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				pushFollow(FOLLOW_rule__Selector__Group_1_1__1_in_rule__Selector__Group_1_1__010498);
+				rule__Selector__Group_1_1__1();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Selector__Group_1_1__0"
+
+
+	// $ANTLR start "rule__Selector__Group_1_1__0__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5049:1: rule__Selector__Group_1_1__0__Impl : ( ( ( RULE_WS ) ) ( ( RULE_WS )* ) ) ;
+	public final void rule__Selector__Group_1_1__0__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5053:1: ( ( ( ( RULE_WS ) ) ( ( RULE_WS )* ) ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5054:1: ( ( ( RULE_WS ) ) ( ( RULE_WS )* ) )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5054:1: ( ( ( RULE_WS ) ) ( ( RULE_WS )* ) )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5055:1: ( ( RULE_WS ) ) ( ( RULE_WS )* )
+				{
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5055:1: ( ( RULE_WS ) )
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5056:1: ( RULE_WS )
+					{
+						if (state.backtracking == 0) {
+							before(grammarAccess.getSelectorAccess().getWSTerminalRuleCall_1_1_0());
+						}
+						// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5057:1: ( RULE_WS )
+						// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5057:3: RULE_WS
+						{
+							match(input, RULE_WS, FOLLOW_RULE_WS_in_rule__Selector__Group_1_1__0__Impl10528);
+							if (state.failed) {
+								return;
+							}
+
+						}
+
+						if (state.backtracking == 0) {
+							after(grammarAccess.getSelectorAccess().getWSTerminalRuleCall_1_1_0());
+						}
+
+					}
+
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5060:1: ( ( RULE_WS )* )
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5061:1: ( RULE_WS )*
+					{
+						if (state.backtracking == 0) {
+							before(grammarAccess.getSelectorAccess().getWSTerminalRuleCall_1_1_0());
+						}
+						// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5062:1: ( RULE_WS )*
+						loop66: do {
+							int alt66 = 2;
+							int LA66_0 = input.LA(1);
+
+							if ((LA66_0 == RULE_WS)) {
+								alt66 = 1;
+							}
+
+
+							switch (alt66) {
+							case 1:
+							// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5062:3: RULE_WS
+							{
+								match(input, RULE_WS, FOLLOW_RULE_WS_in_rule__Selector__Group_1_1__0__Impl10541);
+								if (state.failed) {
+									return;
+								}
+
+							}
+								break;
+
+							default:
+								break loop66;
+							}
+						} while (true);
+
+						if (state.backtracking == 0) {
+							after(grammarAccess.getSelectorAccess().getWSTerminalRuleCall_1_1_0());
+						}
+
+					}
+
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Selector__Group_1_1__0__Impl"
+
+
+	// $ANTLR start "rule__Selector__Group_1_1__1"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5073:1: rule__Selector__Group_1_1__1 : rule__Selector__Group_1_1__1__Impl rule__Selector__Group_1_1__2 ;
+	public final void rule__Selector__Group_1_1__1() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5077:1: ( rule__Selector__Group_1_1__1__Impl rule__Selector__Group_1_1__2 )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5078:2: rule__Selector__Group_1_1__1__Impl rule__Selector__Group_1_1__2
+			{
+				pushFollow(FOLLOW_rule__Selector__Group_1_1__1__Impl_in_rule__Selector__Group_1_1__110574);
+				rule__Selector__Group_1_1__1__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				pushFollow(FOLLOW_rule__Selector__Group_1_1__2_in_rule__Selector__Group_1_1__110577);
+				rule__Selector__Group_1_1__2();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Selector__Group_1_1__1"
+
+
+	// $ANTLR start "rule__Selector__Group_1_1__1__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5085:1: rule__Selector__Group_1_1__1__Impl : ( ( rule__Selector__Group_1_1_1__0 )? ) ;
+	public final void rule__Selector__Group_1_1__1__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5089:1: ( ( ( rule__Selector__Group_1_1_1__0 )? ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5090:1: ( ( rule__Selector__Group_1_1_1__0 )? )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5090:1: ( ( rule__Selector__Group_1_1_1__0 )? )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5091:1: ( rule__Selector__Group_1_1_1__0 )?
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getSelectorAccess().getGroup_1_1_1());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5092:1: ( rule__Selector__Group_1_1_1__0 )?
+					int alt67 = 2;
+					int LA67_0 = input.LA(1);
+
+					if ((LA67_0 == RULE_PLUS || (LA67_0 >= 37 && LA67_0 <= 38))) {
+						alt67 = 1;
+					}
+					switch (alt67) {
+					case 1:
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5092:2: rule__Selector__Group_1_1_1__0
+					{
+						pushFollow(FOLLOW_rule__Selector__Group_1_1_1__0_in_rule__Selector__Group_1_1__1__Impl10604);
+						rule__Selector__Group_1_1_1__0();
+
+						state._fsp--;
+						if (state.failed) {
+							return;
+						}
+
+					}
+						break;
+
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getSelectorAccess().getGroup_1_1_1());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Selector__Group_1_1__1__Impl"
+
+
+	// $ANTLR start "rule__Selector__Group_1_1__2"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5102:1: rule__Selector__Group_1_1__2 : rule__Selector__Group_1_1__2__Impl ;
+	public final void rule__Selector__Group_1_1__2() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5106:1: ( rule__Selector__Group_1_1__2__Impl )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5107:2: rule__Selector__Group_1_1__2__Impl
+			{
+				pushFollow(FOLLOW_rule__Selector__Group_1_1__2__Impl_in_rule__Selector__Group_1_1__210635);
+				rule__Selector__Group_1_1__2__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Selector__Group_1_1__2"
+
+
+	// $ANTLR start "rule__Selector__Group_1_1__2__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5113:1: rule__Selector__Group_1_1__2__Impl : ( ( rule__Selector__SelectorAssignment_1_1_2 ) ) ;
+	public final void rule__Selector__Group_1_1__2__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5117:1: ( ( ( rule__Selector__SelectorAssignment_1_1_2 ) ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5118:1: ( ( rule__Selector__SelectorAssignment_1_1_2 ) )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5118:1: ( ( rule__Selector__SelectorAssignment_1_1_2 ) )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5119:1: ( rule__Selector__SelectorAssignment_1_1_2 )
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getSelectorAccess().getSelectorAssignment_1_1_2());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5120:1: ( rule__Selector__SelectorAssignment_1_1_2 )
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5120:2: rule__Selector__SelectorAssignment_1_1_2
+					{
+						pushFollow(FOLLOW_rule__Selector__SelectorAssignment_1_1_2_in_rule__Selector__Group_1_1__2__Impl10662);
+						rule__Selector__SelectorAssignment_1_1_2();
+
+						state._fsp--;
+						if (state.failed) {
+							return;
+						}
+
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getSelectorAccess().getSelectorAssignment_1_1_2());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Selector__Group_1_1__2__Impl"
+
+
+	// $ANTLR start "rule__Selector__Group_1_1_1__0"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5136:1: rule__Selector__Group_1_1_1__0 : rule__Selector__Group_1_1_1__0__Impl rule__Selector__Group_1_1_1__1
+	// ;
+	public final void rule__Selector__Group_1_1_1__0() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5140:1: ( rule__Selector__Group_1_1_1__0__Impl rule__Selector__Group_1_1_1__1 )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5141:2: rule__Selector__Group_1_1_1__0__Impl rule__Selector__Group_1_1_1__1
+			{
+				pushFollow(FOLLOW_rule__Selector__Group_1_1_1__0__Impl_in_rule__Selector__Group_1_1_1__010698);
+				rule__Selector__Group_1_1_1__0__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				pushFollow(FOLLOW_rule__Selector__Group_1_1_1__1_in_rule__Selector__Group_1_1_1__010701);
+				rule__Selector__Group_1_1_1__1();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Selector__Group_1_1_1__0"
+
+
+	// $ANTLR start "rule__Selector__Group_1_1_1__0__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5148:1: rule__Selector__Group_1_1_1__0__Impl : ( ( rule__Selector__CombinatorAssignment_1_1_1_0 ) ) ;
+	public final void rule__Selector__Group_1_1_1__0__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5152:1: ( ( ( rule__Selector__CombinatorAssignment_1_1_1_0 ) ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5153:1: ( ( rule__Selector__CombinatorAssignment_1_1_1_0 ) )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5153:1: ( ( rule__Selector__CombinatorAssignment_1_1_1_0 ) )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5154:1: ( rule__Selector__CombinatorAssignment_1_1_1_0 )
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getSelectorAccess().getCombinatorAssignment_1_1_1_0());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5155:1: ( rule__Selector__CombinatorAssignment_1_1_1_0 )
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5155:2: rule__Selector__CombinatorAssignment_1_1_1_0
+					{
+						pushFollow(FOLLOW_rule__Selector__CombinatorAssignment_1_1_1_0_in_rule__Selector__Group_1_1_1__0__Impl10728);
+						rule__Selector__CombinatorAssignment_1_1_1_0();
+
+						state._fsp--;
+						if (state.failed) {
+							return;
+						}
+
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getSelectorAccess().getCombinatorAssignment_1_1_1_0());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Selector__Group_1_1_1__0__Impl"
+
+
+	// $ANTLR start "rule__Selector__Group_1_1_1__1"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5165:1: rule__Selector__Group_1_1_1__1 : rule__Selector__Group_1_1_1__1__Impl ;
+	public final void rule__Selector__Group_1_1_1__1() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5169:1: ( rule__Selector__Group_1_1_1__1__Impl )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5170:2: rule__Selector__Group_1_1_1__1__Impl
+			{
+				pushFollow(FOLLOW_rule__Selector__Group_1_1_1__1__Impl_in_rule__Selector__Group_1_1_1__110758);
+				rule__Selector__Group_1_1_1__1__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Selector__Group_1_1_1__1"
+
+
+	// $ANTLR start "rule__Selector__Group_1_1_1__1__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5176:1: rule__Selector__Group_1_1_1__1__Impl : ( ( RULE_WS )* ) ;
+	public final void rule__Selector__Group_1_1_1__1__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5180:1: ( ( ( RULE_WS )* ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5181:1: ( ( RULE_WS )* )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5181:1: ( ( RULE_WS )* )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5182:1: ( RULE_WS )*
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getSelectorAccess().getWSTerminalRuleCall_1_1_1_1());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5183:1: ( RULE_WS )*
+					loop68: do {
+						int alt68 = 2;
+						int LA68_0 = input.LA(1);
+
+						if ((LA68_0 == RULE_WS)) {
+							alt68 = 1;
+						}
+
+
+						switch (alt68) {
+						case 1:
+						// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5183:3: RULE_WS
+						{
+							match(input, RULE_WS, FOLLOW_RULE_WS_in_rule__Selector__Group_1_1_1__1__Impl10786);
+							if (state.failed) {
+								return;
+							}
+
+						}
+							break;
+
+						default:
+							break loop68;
+						}
+					} while (true);
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getSelectorAccess().getWSTerminalRuleCall_1_1_1_1());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Selector__Group_1_1_1__1__Impl"
+
+
+	// $ANTLR start "rule__SimpleSelectorForNegation__Group_0__0"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5197:1: rule__SimpleSelectorForNegation__Group_0__0 : rule__SimpleSelectorForNegation__Group_0__0__Impl
+	// rule__SimpleSelectorForNegation__Group_0__1 ;
+	public final void rule__SimpleSelectorForNegation__Group_0__0() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5201:1: ( rule__SimpleSelectorForNegation__Group_0__0__Impl
+			// rule__SimpleSelectorForNegation__Group_0__1 )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5202:2: rule__SimpleSelectorForNegation__Group_0__0__Impl rule__SimpleSelectorForNegation__Group_0__1
+			{
+				pushFollow(FOLLOW_rule__SimpleSelectorForNegation__Group_0__0__Impl_in_rule__SimpleSelectorForNegation__Group_0__010821);
+				rule__SimpleSelectorForNegation__Group_0__0__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				pushFollow(FOLLOW_rule__SimpleSelectorForNegation__Group_0__1_in_rule__SimpleSelectorForNegation__Group_0__010824);
+				rule__SimpleSelectorForNegation__Group_0__1();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__SimpleSelectorForNegation__Group_0__0"
+
+
+	// $ANTLR start "rule__SimpleSelectorForNegation__Group_0__0__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5209:1: rule__SimpleSelectorForNegation__Group_0__0__Impl : ( (
+	// rule__SimpleSelectorForNegation__Alternatives_0_0 ) ) ;
+	public final void rule__SimpleSelectorForNegation__Group_0__0__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5213:1: ( ( ( rule__SimpleSelectorForNegation__Alternatives_0_0 ) ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5214:1: ( ( rule__SimpleSelectorForNegation__Alternatives_0_0 ) )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5214:1: ( ( rule__SimpleSelectorForNegation__Alternatives_0_0 ) )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5215:1: ( rule__SimpleSelectorForNegation__Alternatives_0_0 )
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getSimpleSelectorForNegationAccess().getAlternatives_0_0());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5216:1: ( rule__SimpleSelectorForNegation__Alternatives_0_0 )
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5216:2: rule__SimpleSelectorForNegation__Alternatives_0_0
+					{
+						pushFollow(FOLLOW_rule__SimpleSelectorForNegation__Alternatives_0_0_in_rule__SimpleSelectorForNegation__Group_0__0__Impl10851);
+						rule__SimpleSelectorForNegation__Alternatives_0_0();
+
+						state._fsp--;
+						if (state.failed) {
+							return;
+						}
+
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getSimpleSelectorForNegationAccess().getAlternatives_0_0());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__SimpleSelectorForNegation__Group_0__0__Impl"
+
+
+	// $ANTLR start "rule__SimpleSelectorForNegation__Group_0__1"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5226:1: rule__SimpleSelectorForNegation__Group_0__1 : rule__SimpleSelectorForNegation__Group_0__1__Impl ;
+	public final void rule__SimpleSelectorForNegation__Group_0__1() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5230:1: ( rule__SimpleSelectorForNegation__Group_0__1__Impl )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5231:2: rule__SimpleSelectorForNegation__Group_0__1__Impl
+			{
+				pushFollow(FOLLOW_rule__SimpleSelectorForNegation__Group_0__1__Impl_in_rule__SimpleSelectorForNegation__Group_0__110881);
+				rule__SimpleSelectorForNegation__Group_0__1__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__SimpleSelectorForNegation__Group_0__1"
+
+
+	// $ANTLR start "rule__SimpleSelectorForNegation__Group_0__1__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5237:1: rule__SimpleSelectorForNegation__Group_0__1__Impl : ( (
+	// rule__SimpleSelectorForNegation__SubSelectorsAssignment_0_1 )* ) ;
+	public final void rule__SimpleSelectorForNegation__Group_0__1__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5241:1: ( ( ( rule__SimpleSelectorForNegation__SubSelectorsAssignment_0_1 )* ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5242:1: ( ( rule__SimpleSelectorForNegation__SubSelectorsAssignment_0_1 )* )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5242:1: ( ( rule__SimpleSelectorForNegation__SubSelectorsAssignment_0_1 )* )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5243:1: ( rule__SimpleSelectorForNegation__SubSelectorsAssignment_0_1 )*
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getSimpleSelectorForNegationAccess().getSubSelectorsAssignment_0_1());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5244:1: ( rule__SimpleSelectorForNegation__SubSelectorsAssignment_0_1 )*
+					loop69: do {
+						int alt69 = 2;
+						int LA69_0 = input.LA(1);
+
+						if (((LA69_0 >= RULE_COLON && LA69_0 <= RULE_HASHMARK) || LA69_0 == 39 || LA69_0 == 42)) {
+							alt69 = 1;
+						}
+
+
+						switch (alt69) {
+						case 1:
+						// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5244:2: rule__SimpleSelectorForNegation__SubSelectorsAssignment_0_1
+						{
+							pushFollow(FOLLOW_rule__SimpleSelectorForNegation__SubSelectorsAssignment_0_1_in_rule__SimpleSelectorForNegation__Group_0__1__Impl10908);
+							rule__SimpleSelectorForNegation__SubSelectorsAssignment_0_1();
+
+							state._fsp--;
+							if (state.failed) {
+								return;
+							}
+
+						}
+							break;
+
+						default:
+							break loop69;
+						}
+					} while (true);
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getSimpleSelectorForNegationAccess().getSubSelectorsAssignment_0_1());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__SimpleSelectorForNegation__Group_0__1__Impl"
+
+
+	// $ANTLR start "rule__Simple_selector__Group_0__0"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5258:1: rule__Simple_selector__Group_0__0 : rule__Simple_selector__Group_0__0__Impl
+	// rule__Simple_selector__Group_0__1 ;
+	public final void rule__Simple_selector__Group_0__0() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5262:1: ( rule__Simple_selector__Group_0__0__Impl rule__Simple_selector__Group_0__1 )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5263:2: rule__Simple_selector__Group_0__0__Impl rule__Simple_selector__Group_0__1
+			{
+				pushFollow(FOLLOW_rule__Simple_selector__Group_0__0__Impl_in_rule__Simple_selector__Group_0__010943);
+				rule__Simple_selector__Group_0__0__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				pushFollow(FOLLOW_rule__Simple_selector__Group_0__1_in_rule__Simple_selector__Group_0__010946);
+				rule__Simple_selector__Group_0__1();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Simple_selector__Group_0__0"
+
+
+	// $ANTLR start "rule__Simple_selector__Group_0__0__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5270:1: rule__Simple_selector__Group_0__0__Impl : ( ( rule__Simple_selector__Alternatives_0_0 ) ) ;
+	public final void rule__Simple_selector__Group_0__0__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5274:1: ( ( ( rule__Simple_selector__Alternatives_0_0 ) ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5275:1: ( ( rule__Simple_selector__Alternatives_0_0 ) )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5275:1: ( ( rule__Simple_selector__Alternatives_0_0 ) )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5276:1: ( rule__Simple_selector__Alternatives_0_0 )
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getSimple_selectorAccess().getAlternatives_0_0());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5277:1: ( rule__Simple_selector__Alternatives_0_0 )
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5277:2: rule__Simple_selector__Alternatives_0_0
+					{
+						pushFollow(FOLLOW_rule__Simple_selector__Alternatives_0_0_in_rule__Simple_selector__Group_0__0__Impl10973);
+						rule__Simple_selector__Alternatives_0_0();
+
+						state._fsp--;
+						if (state.failed) {
+							return;
+						}
+
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getSimple_selectorAccess().getAlternatives_0_0());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Simple_selector__Group_0__0__Impl"
+
+
+	// $ANTLR start "rule__Simple_selector__Group_0__1"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5287:1: rule__Simple_selector__Group_0__1 : rule__Simple_selector__Group_0__1__Impl ;
+	public final void rule__Simple_selector__Group_0__1() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5291:1: ( rule__Simple_selector__Group_0__1__Impl )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5292:2: rule__Simple_selector__Group_0__1__Impl
+			{
+				pushFollow(FOLLOW_rule__Simple_selector__Group_0__1__Impl_in_rule__Simple_selector__Group_0__111003);
+				rule__Simple_selector__Group_0__1__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Simple_selector__Group_0__1"
+
+
+	// $ANTLR start "rule__Simple_selector__Group_0__1__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5298:1: rule__Simple_selector__Group_0__1__Impl : ( ( rule__Simple_selector__SubSelectorsAssignment_0_1 )* )
+	// ;
+	public final void rule__Simple_selector__Group_0__1__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5302:1: ( ( ( rule__Simple_selector__SubSelectorsAssignment_0_1 )* ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5303:1: ( ( rule__Simple_selector__SubSelectorsAssignment_0_1 )* )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5303:1: ( ( rule__Simple_selector__SubSelectorsAssignment_0_1 )* )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5304:1: ( rule__Simple_selector__SubSelectorsAssignment_0_1 )*
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getSimple_selectorAccess().getSubSelectorsAssignment_0_1());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5305:1: ( rule__Simple_selector__SubSelectorsAssignment_0_1 )*
+					loop70: do {
+						int alt70 = 2;
+						int LA70_0 = input.LA(1);
+
+						if (((LA70_0 >= RULE_COLON && LA70_0 <= RULE_HASHMARK) || LA70_0 == 39 || LA70_0 == 42)) {
+							alt70 = 1;
+						}
+
+
+						switch (alt70) {
+						case 1:
+						// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5305:2: rule__Simple_selector__SubSelectorsAssignment_0_1
+						{
+							pushFollow(FOLLOW_rule__Simple_selector__SubSelectorsAssignment_0_1_in_rule__Simple_selector__Group_0__1__Impl11030);
+							rule__Simple_selector__SubSelectorsAssignment_0_1();
+
+							state._fsp--;
+							if (state.failed) {
+								return;
+							}
+
+						}
+							break;
+
+						default:
+							break loop70;
+						}
+					} while (true);
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getSimple_selectorAccess().getSubSelectorsAssignment_0_1());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Simple_selector__Group_0__1__Impl"
+
+
+	// $ANTLR start "rule__AttributeSelector__Group__0"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5319:1: rule__AttributeSelector__Group__0 : rule__AttributeSelector__Group__0__Impl
+	// rule__AttributeSelector__Group__1 ;
+	public final void rule__AttributeSelector__Group__0() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5323:1: ( rule__AttributeSelector__Group__0__Impl rule__AttributeSelector__Group__1 )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5324:2: rule__AttributeSelector__Group__0__Impl rule__AttributeSelector__Group__1
+			{
+				pushFollow(FOLLOW_rule__AttributeSelector__Group__0__Impl_in_rule__AttributeSelector__Group__011065);
+				rule__AttributeSelector__Group__0__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				pushFollow(FOLLOW_rule__AttributeSelector__Group__1_in_rule__AttributeSelector__Group__011068);
+				rule__AttributeSelector__Group__1();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__AttributeSelector__Group__0"
+
+
+	// $ANTLR start "rule__AttributeSelector__Group__0__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5331:1: rule__AttributeSelector__Group__0__Impl : ( () ) ;
+	public final void rule__AttributeSelector__Group__0__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5335:1: ( ( () ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5336:1: ( () )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5336:1: ( () )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5337:1: ()
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getAttributeSelectorAccess().getAttributeSelectorAction_0());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5338:1: ()
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5340:1:
+					{
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getAttributeSelectorAccess().getAttributeSelectorAction_0());
+					}
+
+				}
+
+
+			}
+
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__AttributeSelector__Group__0__Impl"
+
+
+	// $ANTLR start "rule__AttributeSelector__Group__1"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5350:1: rule__AttributeSelector__Group__1 : rule__AttributeSelector__Group__1__Impl
+	// rule__AttributeSelector__Group__2 ;
+	public final void rule__AttributeSelector__Group__1() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5354:1: ( rule__AttributeSelector__Group__1__Impl rule__AttributeSelector__Group__2 )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5355:2: rule__AttributeSelector__Group__1__Impl rule__AttributeSelector__Group__2
+			{
+				pushFollow(FOLLOW_rule__AttributeSelector__Group__1__Impl_in_rule__AttributeSelector__Group__111126);
+				rule__AttributeSelector__Group__1__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				pushFollow(FOLLOW_rule__AttributeSelector__Group__2_in_rule__AttributeSelector__Group__111129);
+				rule__AttributeSelector__Group__2();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__AttributeSelector__Group__1"
+
+
+	// $ANTLR start "rule__AttributeSelector__Group__1__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5362:1: rule__AttributeSelector__Group__1__Impl : ( '[' ) ;
+	public final void rule__AttributeSelector__Group__1__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5366:1: ( ( '[' ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5367:1: ( '[' )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5367:1: ( '[' )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5368:1: '['
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getAttributeSelectorAccess().getLeftSquareBracketKeyword_1());
+					}
+					match(input, 42, FOLLOW_42_in_rule__AttributeSelector__Group__1__Impl11157);
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getAttributeSelectorAccess().getLeftSquareBracketKeyword_1());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__AttributeSelector__Group__1__Impl"
+
+
+	// $ANTLR start "rule__AttributeSelector__Group__2"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5381:1: rule__AttributeSelector__Group__2 : rule__AttributeSelector__Group__2__Impl
+	// rule__AttributeSelector__Group__3 ;
+	public final void rule__AttributeSelector__Group__2() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5385:1: ( rule__AttributeSelector__Group__2__Impl rule__AttributeSelector__Group__3 )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5386:2: rule__AttributeSelector__Group__2__Impl rule__AttributeSelector__Group__3
+			{
+				pushFollow(FOLLOW_rule__AttributeSelector__Group__2__Impl_in_rule__AttributeSelector__Group__211188);
+				rule__AttributeSelector__Group__2__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				pushFollow(FOLLOW_rule__AttributeSelector__Group__3_in_rule__AttributeSelector__Group__211191);
+				rule__AttributeSelector__Group__3();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__AttributeSelector__Group__2"
+
+
+	// $ANTLR start "rule__AttributeSelector__Group__2__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5393:1: rule__AttributeSelector__Group__2__Impl : ( ( rule__AttributeSelector__NameAssignment_2 ) ) ;
+	public final void rule__AttributeSelector__Group__2__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5397:1: ( ( ( rule__AttributeSelector__NameAssignment_2 ) ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5398:1: ( ( rule__AttributeSelector__NameAssignment_2 ) )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5398:1: ( ( rule__AttributeSelector__NameAssignment_2 ) )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5399:1: ( rule__AttributeSelector__NameAssignment_2 )
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getAttributeSelectorAccess().getNameAssignment_2());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5400:1: ( rule__AttributeSelector__NameAssignment_2 )
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5400:2: rule__AttributeSelector__NameAssignment_2
+					{
+						pushFollow(FOLLOW_rule__AttributeSelector__NameAssignment_2_in_rule__AttributeSelector__Group__2__Impl11218);
+						rule__AttributeSelector__NameAssignment_2();
+
+						state._fsp--;
+						if (state.failed) {
+							return;
+						}
+
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getAttributeSelectorAccess().getNameAssignment_2());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__AttributeSelector__Group__2__Impl"
+
+
+	// $ANTLR start "rule__AttributeSelector__Group__3"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5410:1: rule__AttributeSelector__Group__3 : rule__AttributeSelector__Group__3__Impl
+	// rule__AttributeSelector__Group__4 ;
+	public final void rule__AttributeSelector__Group__3() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5414:1: ( rule__AttributeSelector__Group__3__Impl rule__AttributeSelector__Group__4 )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5415:2: rule__AttributeSelector__Group__3__Impl rule__AttributeSelector__Group__4
+			{
+				pushFollow(FOLLOW_rule__AttributeSelector__Group__3__Impl_in_rule__AttributeSelector__Group__311248);
+				rule__AttributeSelector__Group__3__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				pushFollow(FOLLOW_rule__AttributeSelector__Group__4_in_rule__AttributeSelector__Group__311251);
+				rule__AttributeSelector__Group__4();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__AttributeSelector__Group__3"
+
+
+	// $ANTLR start "rule__AttributeSelector__Group__3__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5422:1: rule__AttributeSelector__Group__3__Impl : ( ( rule__AttributeSelector__Group_3__0 )? ) ;
+	public final void rule__AttributeSelector__Group__3__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5426:1: ( ( ( rule__AttributeSelector__Group_3__0 )? ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5427:1: ( ( rule__AttributeSelector__Group_3__0 )? )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5427:1: ( ( rule__AttributeSelector__Group_3__0 )? )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5428:1: ( rule__AttributeSelector__Group_3__0 )?
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getAttributeSelectorAccess().getGroup_3());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5429:1: ( rule__AttributeSelector__Group_3__0 )?
+					int alt71 = 2;
+					int LA71_0 = input.LA(1);
+
+					if (((LA71_0 >= RULE_INCLUDES && LA71_0 <= RULE_DASHMATCH) || (LA71_0 >= 32 && LA71_0 <= 35))) {
+						alt71 = 1;
+					}
+					switch (alt71) {
+					case 1:
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5429:2: rule__AttributeSelector__Group_3__0
+					{
+						pushFollow(FOLLOW_rule__AttributeSelector__Group_3__0_in_rule__AttributeSelector__Group__3__Impl11278);
+						rule__AttributeSelector__Group_3__0();
+
+						state._fsp--;
+						if (state.failed) {
+							return;
+						}
+
+					}
+						break;
+
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getAttributeSelectorAccess().getGroup_3());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__AttributeSelector__Group__3__Impl"
+
+
+	// $ANTLR start "rule__AttributeSelector__Group__4"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5439:1: rule__AttributeSelector__Group__4 : rule__AttributeSelector__Group__4__Impl ;
+	public final void rule__AttributeSelector__Group__4() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5443:1: ( rule__AttributeSelector__Group__4__Impl )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5444:2: rule__AttributeSelector__Group__4__Impl
+			{
+				pushFollow(FOLLOW_rule__AttributeSelector__Group__4__Impl_in_rule__AttributeSelector__Group__411309);
+				rule__AttributeSelector__Group__4__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__AttributeSelector__Group__4"
+
+
+	// $ANTLR start "rule__AttributeSelector__Group__4__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5450:1: rule__AttributeSelector__Group__4__Impl : ( ']' ) ;
+	public final void rule__AttributeSelector__Group__4__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5454:1: ( ( ']' ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5455:1: ( ']' )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5455:1: ( ']' )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5456:1: ']'
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getAttributeSelectorAccess().getRightSquareBracketKeyword_4());
+					}
+					match(input, 43, FOLLOW_43_in_rule__AttributeSelector__Group__4__Impl11337);
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getAttributeSelectorAccess().getRightSquareBracketKeyword_4());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__AttributeSelector__Group__4__Impl"
+
+
+	// $ANTLR start "rule__AttributeSelector__Group_3__0"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5479:1: rule__AttributeSelector__Group_3__0 : rule__AttributeSelector__Group_3__0__Impl
+	// rule__AttributeSelector__Group_3__1 ;
+	public final void rule__AttributeSelector__Group_3__0() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5483:1: ( rule__AttributeSelector__Group_3__0__Impl rule__AttributeSelector__Group_3__1 )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5484:2: rule__AttributeSelector__Group_3__0__Impl rule__AttributeSelector__Group_3__1
+			{
+				pushFollow(FOLLOW_rule__AttributeSelector__Group_3__0__Impl_in_rule__AttributeSelector__Group_3__011378);
+				rule__AttributeSelector__Group_3__0__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				pushFollow(FOLLOW_rule__AttributeSelector__Group_3__1_in_rule__AttributeSelector__Group_3__011381);
+				rule__AttributeSelector__Group_3__1();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__AttributeSelector__Group_3__0"
+
+
+	// $ANTLR start "rule__AttributeSelector__Group_3__0__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5491:1: rule__AttributeSelector__Group_3__0__Impl : ( ( rule__AttributeSelector__OpAssignment_3_0 ) ) ;
+	public final void rule__AttributeSelector__Group_3__0__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5495:1: ( ( ( rule__AttributeSelector__OpAssignment_3_0 ) ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5496:1: ( ( rule__AttributeSelector__OpAssignment_3_0 ) )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5496:1: ( ( rule__AttributeSelector__OpAssignment_3_0 ) )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5497:1: ( rule__AttributeSelector__OpAssignment_3_0 )
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getAttributeSelectorAccess().getOpAssignment_3_0());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5498:1: ( rule__AttributeSelector__OpAssignment_3_0 )
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5498:2: rule__AttributeSelector__OpAssignment_3_0
+					{
+						pushFollow(FOLLOW_rule__AttributeSelector__OpAssignment_3_0_in_rule__AttributeSelector__Group_3__0__Impl11408);
+						rule__AttributeSelector__OpAssignment_3_0();
+
+						state._fsp--;
+						if (state.failed) {
+							return;
+						}
+
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getAttributeSelectorAccess().getOpAssignment_3_0());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__AttributeSelector__Group_3__0__Impl"
+
+
+	// $ANTLR start "rule__AttributeSelector__Group_3__1"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5508:1: rule__AttributeSelector__Group_3__1 : rule__AttributeSelector__Group_3__1__Impl ;
+	public final void rule__AttributeSelector__Group_3__1() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5512:1: ( rule__AttributeSelector__Group_3__1__Impl )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5513:2: rule__AttributeSelector__Group_3__1__Impl
+			{
+				pushFollow(FOLLOW_rule__AttributeSelector__Group_3__1__Impl_in_rule__AttributeSelector__Group_3__111438);
+				rule__AttributeSelector__Group_3__1__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__AttributeSelector__Group_3__1"
+
+
+	// $ANTLR start "rule__AttributeSelector__Group_3__1__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5519:1: rule__AttributeSelector__Group_3__1__Impl : ( ( rule__AttributeSelector__ValueAssignment_3_1 ) ) ;
+	public final void rule__AttributeSelector__Group_3__1__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5523:1: ( ( ( rule__AttributeSelector__ValueAssignment_3_1 ) ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5524:1: ( ( rule__AttributeSelector__ValueAssignment_3_1 ) )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5524:1: ( ( rule__AttributeSelector__ValueAssignment_3_1 ) )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5525:1: ( rule__AttributeSelector__ValueAssignment_3_1 )
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getAttributeSelectorAccess().getValueAssignment_3_1());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5526:1: ( rule__AttributeSelector__ValueAssignment_3_1 )
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5526:2: rule__AttributeSelector__ValueAssignment_3_1
+					{
+						pushFollow(FOLLOW_rule__AttributeSelector__ValueAssignment_3_1_in_rule__AttributeSelector__Group_3__1__Impl11465);
+						rule__AttributeSelector__ValueAssignment_3_1();
+
+						state._fsp--;
+						if (state.failed) {
+							return;
+						}
+
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getAttributeSelectorAccess().getValueAssignment_3_1());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__AttributeSelector__Group_3__1__Impl"
+
+
+	// $ANTLR start "rule__ClassSelector__Group__0"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5540:1: rule__ClassSelector__Group__0 : rule__ClassSelector__Group__0__Impl rule__ClassSelector__Group__1 ;
+	public final void rule__ClassSelector__Group__0() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5544:1: ( rule__ClassSelector__Group__0__Impl rule__ClassSelector__Group__1 )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5545:2: rule__ClassSelector__Group__0__Impl rule__ClassSelector__Group__1
+			{
+				pushFollow(FOLLOW_rule__ClassSelector__Group__0__Impl_in_rule__ClassSelector__Group__011499);
+				rule__ClassSelector__Group__0__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				pushFollow(FOLLOW_rule__ClassSelector__Group__1_in_rule__ClassSelector__Group__011502);
+				rule__ClassSelector__Group__1();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__ClassSelector__Group__0"
+
+
+	// $ANTLR start "rule__ClassSelector__Group__0__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5552:1: rule__ClassSelector__Group__0__Impl : ( () ) ;
+	public final void rule__ClassSelector__Group__0__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5556:1: ( ( () ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5557:1: ( () )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5557:1: ( () )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5558:1: ()
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getClassSelectorAccess().getClassSelectorAction_0());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5559:1: ()
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5561:1:
+					{
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getClassSelectorAccess().getClassSelectorAction_0());
+					}
+
+				}
+
+
+			}
+
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__ClassSelector__Group__0__Impl"
+
+
+	// $ANTLR start "rule__ClassSelector__Group__1"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5571:1: rule__ClassSelector__Group__1 : rule__ClassSelector__Group__1__Impl rule__ClassSelector__Group__2 ;
+	public final void rule__ClassSelector__Group__1() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5575:1: ( rule__ClassSelector__Group__1__Impl rule__ClassSelector__Group__2 )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5576:2: rule__ClassSelector__Group__1__Impl rule__ClassSelector__Group__2
+			{
+				pushFollow(FOLLOW_rule__ClassSelector__Group__1__Impl_in_rule__ClassSelector__Group__111560);
+				rule__ClassSelector__Group__1__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				pushFollow(FOLLOW_rule__ClassSelector__Group__2_in_rule__ClassSelector__Group__111563);
+				rule__ClassSelector__Group__2();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__ClassSelector__Group__1"
+
+
+	// $ANTLR start "rule__ClassSelector__Group__1__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5583:1: rule__ClassSelector__Group__1__Impl : ( '.' ) ;
+	public final void rule__ClassSelector__Group__1__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5587:1: ( ( '.' ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5588:1: ( '.' )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5588:1: ( '.' )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5589:1: '.'
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getClassSelectorAccess().getFullStopKeyword_1());
+					}
+					match(input, 39, FOLLOW_39_in_rule__ClassSelector__Group__1__Impl11591);
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getClassSelectorAccess().getFullStopKeyword_1());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__ClassSelector__Group__1__Impl"
+
+
+	// $ANTLR start "rule__ClassSelector__Group__2"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5602:1: rule__ClassSelector__Group__2 : rule__ClassSelector__Group__2__Impl ;
+	public final void rule__ClassSelector__Group__2() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5606:1: ( rule__ClassSelector__Group__2__Impl )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5607:2: rule__ClassSelector__Group__2__Impl
+			{
+				pushFollow(FOLLOW_rule__ClassSelector__Group__2__Impl_in_rule__ClassSelector__Group__211622);
+				rule__ClassSelector__Group__2__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__ClassSelector__Group__2"
+
+
+	// $ANTLR start "rule__ClassSelector__Group__2__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5613:1: rule__ClassSelector__Group__2__Impl : ( ( rule__ClassSelector__NameAssignment_2 ) ) ;
+	public final void rule__ClassSelector__Group__2__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5617:1: ( ( ( rule__ClassSelector__NameAssignment_2 ) ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5618:1: ( ( rule__ClassSelector__NameAssignment_2 ) )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5618:1: ( ( rule__ClassSelector__NameAssignment_2 ) )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5619:1: ( rule__ClassSelector__NameAssignment_2 )
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getClassSelectorAccess().getNameAssignment_2());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5620:1: ( rule__ClassSelector__NameAssignment_2 )
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5620:2: rule__ClassSelector__NameAssignment_2
+					{
+						pushFollow(FOLLOW_rule__ClassSelector__NameAssignment_2_in_rule__ClassSelector__Group__2__Impl11649);
+						rule__ClassSelector__NameAssignment_2();
+
+						state._fsp--;
+						if (state.failed) {
+							return;
+						}
+
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getClassSelectorAccess().getNameAssignment_2());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__ClassSelector__Group__2__Impl"
+
+
+	// $ANTLR start "rule__ElementSelector__Group__0"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5636:1: rule__ElementSelector__Group__0 : rule__ElementSelector__Group__0__Impl
+	// rule__ElementSelector__Group__1 ;
+	public final void rule__ElementSelector__Group__0() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5640:1: ( rule__ElementSelector__Group__0__Impl rule__ElementSelector__Group__1 )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5641:2: rule__ElementSelector__Group__0__Impl rule__ElementSelector__Group__1
+			{
+				pushFollow(FOLLOW_rule__ElementSelector__Group__0__Impl_in_rule__ElementSelector__Group__011685);
+				rule__ElementSelector__Group__0__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				pushFollow(FOLLOW_rule__ElementSelector__Group__1_in_rule__ElementSelector__Group__011688);
+				rule__ElementSelector__Group__1();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__ElementSelector__Group__0"
+
+
+	// $ANTLR start "rule__ElementSelector__Group__0__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5648:1: rule__ElementSelector__Group__0__Impl : ( () ) ;
+	public final void rule__ElementSelector__Group__0__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5652:1: ( ( () ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5653:1: ( () )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5653:1: ( () )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5654:1: ()
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getElementSelectorAccess().getElementSelectorAction_0());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5655:1: ()
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5657:1:
+					{
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getElementSelectorAccess().getElementSelectorAction_0());
+					}
+
+				}
+
+
+			}
+
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__ElementSelector__Group__0__Impl"
+
+
+	// $ANTLR start "rule__ElementSelector__Group__1"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5667:1: rule__ElementSelector__Group__1 : rule__ElementSelector__Group__1__Impl ;
+	public final void rule__ElementSelector__Group__1() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5671:1: ( rule__ElementSelector__Group__1__Impl )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5672:2: rule__ElementSelector__Group__1__Impl
+			{
+				pushFollow(FOLLOW_rule__ElementSelector__Group__1__Impl_in_rule__ElementSelector__Group__111746);
+				rule__ElementSelector__Group__1__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__ElementSelector__Group__1"
+
+
+	// $ANTLR start "rule__ElementSelector__Group__1__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5678:1: rule__ElementSelector__Group__1__Impl : ( ( rule__ElementSelector__NameAssignment_1 ) ) ;
+	public final void rule__ElementSelector__Group__1__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5682:1: ( ( ( rule__ElementSelector__NameAssignment_1 ) ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5683:1: ( ( rule__ElementSelector__NameAssignment_1 ) )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5683:1: ( ( rule__ElementSelector__NameAssignment_1 ) )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5684:1: ( rule__ElementSelector__NameAssignment_1 )
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getElementSelectorAccess().getNameAssignment_1());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5685:1: ( rule__ElementSelector__NameAssignment_1 )
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5685:2: rule__ElementSelector__NameAssignment_1
+					{
+						pushFollow(FOLLOW_rule__ElementSelector__NameAssignment_1_in_rule__ElementSelector__Group__1__Impl11773);
+						rule__ElementSelector__NameAssignment_1();
+
+						state._fsp--;
+						if (state.failed) {
+							return;
+						}
+
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getElementSelectorAccess().getNameAssignment_1());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__ElementSelector__Group__1__Impl"
+
+
+	// $ANTLR start "rule__UniversalSelector__Group__0"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5699:1: rule__UniversalSelector__Group__0 : rule__UniversalSelector__Group__0__Impl
+	// rule__UniversalSelector__Group__1 ;
+	public final void rule__UniversalSelector__Group__0() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5703:1: ( rule__UniversalSelector__Group__0__Impl rule__UniversalSelector__Group__1 )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5704:2: rule__UniversalSelector__Group__0__Impl rule__UniversalSelector__Group__1
+			{
+				pushFollow(FOLLOW_rule__UniversalSelector__Group__0__Impl_in_rule__UniversalSelector__Group__011807);
+				rule__UniversalSelector__Group__0__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				pushFollow(FOLLOW_rule__UniversalSelector__Group__1_in_rule__UniversalSelector__Group__011810);
+				rule__UniversalSelector__Group__1();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__UniversalSelector__Group__0"
+
+
+	// $ANTLR start "rule__UniversalSelector__Group__0__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5711:1: rule__UniversalSelector__Group__0__Impl : ( () ) ;
+	public final void rule__UniversalSelector__Group__0__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5715:1: ( ( () ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5716:1: ( () )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5716:1: ( () )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5717:1: ()
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getUniversalSelectorAccess().getUniversalSelectorAction_0());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5718:1: ()
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5720:1:
+					{
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getUniversalSelectorAccess().getUniversalSelectorAction_0());
+					}
+
+				}
+
+
+			}
+
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__UniversalSelector__Group__0__Impl"
+
+
+	// $ANTLR start "rule__UniversalSelector__Group__1"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5730:1: rule__UniversalSelector__Group__1 : rule__UniversalSelector__Group__1__Impl
+	// rule__UniversalSelector__Group__2 ;
+	public final void rule__UniversalSelector__Group__1() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5734:1: ( rule__UniversalSelector__Group__1__Impl rule__UniversalSelector__Group__2 )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5735:2: rule__UniversalSelector__Group__1__Impl rule__UniversalSelector__Group__2
+			{
+				pushFollow(FOLLOW_rule__UniversalSelector__Group__1__Impl_in_rule__UniversalSelector__Group__111868);
+				rule__UniversalSelector__Group__1__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				pushFollow(FOLLOW_rule__UniversalSelector__Group__2_in_rule__UniversalSelector__Group__111871);
+				rule__UniversalSelector__Group__2();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__UniversalSelector__Group__1"
+
+
+	// $ANTLR start "rule__UniversalSelector__Group__1__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5742:1: rule__UniversalSelector__Group__1__Impl : ( ( rule__UniversalSelector__NamespaceAssignment_1 )? ) ;
+	public final void rule__UniversalSelector__Group__1__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5746:1: ( ( ( rule__UniversalSelector__NamespaceAssignment_1 )? ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5747:1: ( ( rule__UniversalSelector__NamespaceAssignment_1 )? )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5747:1: ( ( rule__UniversalSelector__NamespaceAssignment_1 )? )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5748:1: ( rule__UniversalSelector__NamespaceAssignment_1 )?
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getUniversalSelectorAccess().getNamespaceAssignment_1());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5749:1: ( rule__UniversalSelector__NamespaceAssignment_1 )?
+					int alt72 = 2;
+					int LA72_0 = input.LA(1);
+
+					if (((LA72_0 >= RULE_DASH && LA72_0 <= RULE_UNDERSCORE) || (LA72_0 >= RULE_ONE_HEX_LETTER && LA72_0 <= RULE_ONE_NON_HEX_LETTER) || (LA72_0 >= 49 && LA72_0 <= 52) || LA72_0 == 60)) {
+						alt72 = 1;
+					}
+					else if ((LA72_0 == 36)) {
+						int LA72_2 = input.LA(2);
+
+						if ((LA72_2 == 60)) {
+							alt72 = 1;
+						}
+					}
+					switch (alt72) {
+					case 1:
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5749:2: rule__UniversalSelector__NamespaceAssignment_1
+					{
+						pushFollow(FOLLOW_rule__UniversalSelector__NamespaceAssignment_1_in_rule__UniversalSelector__Group__1__Impl11898);
+						rule__UniversalSelector__NamespaceAssignment_1();
+
+						state._fsp--;
+						if (state.failed) {
+							return;
+						}
+
+					}
+						break;
+
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getUniversalSelectorAccess().getNamespaceAssignment_1());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__UniversalSelector__Group__1__Impl"
+
+
+	// $ANTLR start "rule__UniversalSelector__Group__2"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5759:1: rule__UniversalSelector__Group__2 : rule__UniversalSelector__Group__2__Impl ;
+	public final void rule__UniversalSelector__Group__2() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5763:1: ( rule__UniversalSelector__Group__2__Impl )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5764:2: rule__UniversalSelector__Group__2__Impl
+			{
+				pushFollow(FOLLOW_rule__UniversalSelector__Group__2__Impl_in_rule__UniversalSelector__Group__211929);
+				rule__UniversalSelector__Group__2__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__UniversalSelector__Group__2"
+
+
+	// $ANTLR start "rule__UniversalSelector__Group__2__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5770:1: rule__UniversalSelector__Group__2__Impl : ( '*' ) ;
+	public final void rule__UniversalSelector__Group__2__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5774:1: ( ( '*' ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5775:1: ( '*' )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5775:1: ( '*' )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5776:1: '*'
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getUniversalSelectorAccess().getAsteriskKeyword_2());
+					}
+					match(input, 36, FOLLOW_36_in_rule__UniversalSelector__Group__2__Impl11957);
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getUniversalSelectorAccess().getAsteriskKeyword_2());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__UniversalSelector__Group__2__Impl"
+
+
+	// $ANTLR start "rule__IdSelector__Group__0"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5795:1: rule__IdSelector__Group__0 : rule__IdSelector__Group__0__Impl rule__IdSelector__Group__1 ;
+	public final void rule__IdSelector__Group__0() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5799:1: ( rule__IdSelector__Group__0__Impl rule__IdSelector__Group__1 )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5800:2: rule__IdSelector__Group__0__Impl rule__IdSelector__Group__1
+			{
+				pushFollow(FOLLOW_rule__IdSelector__Group__0__Impl_in_rule__IdSelector__Group__011994);
+				rule__IdSelector__Group__0__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				pushFollow(FOLLOW_rule__IdSelector__Group__1_in_rule__IdSelector__Group__011997);
+				rule__IdSelector__Group__1();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__IdSelector__Group__0"
+
+
+	// $ANTLR start "rule__IdSelector__Group__0__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5807:1: rule__IdSelector__Group__0__Impl : ( () ) ;
+	public final void rule__IdSelector__Group__0__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5811:1: ( ( () ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5812:1: ( () )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5812:1: ( () )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5813:1: ()
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getIdSelectorAccess().getIdSelectorAction_0());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5814:1: ()
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5816:1:
+					{
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getIdSelectorAccess().getIdSelectorAction_0());
+					}
+
+				}
+
+
+			}
+
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__IdSelector__Group__0__Impl"
+
+
+	// $ANTLR start "rule__IdSelector__Group__1"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5826:1: rule__IdSelector__Group__1 : rule__IdSelector__Group__1__Impl rule__IdSelector__Group__2 ;
+	public final void rule__IdSelector__Group__1() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5830:1: ( rule__IdSelector__Group__1__Impl rule__IdSelector__Group__2 )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5831:2: rule__IdSelector__Group__1__Impl rule__IdSelector__Group__2
+			{
+				pushFollow(FOLLOW_rule__IdSelector__Group__1__Impl_in_rule__IdSelector__Group__112055);
+				rule__IdSelector__Group__1__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				pushFollow(FOLLOW_rule__IdSelector__Group__2_in_rule__IdSelector__Group__112058);
+				rule__IdSelector__Group__2();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__IdSelector__Group__1"
+
+
+	// $ANTLR start "rule__IdSelector__Group__1__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5838:1: rule__IdSelector__Group__1__Impl : ( RULE_HASHMARK ) ;
+	public final void rule__IdSelector__Group__1__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5842:1: ( ( RULE_HASHMARK ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5843:1: ( RULE_HASHMARK )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5843:1: ( RULE_HASHMARK )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5844:1: RULE_HASHMARK
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getIdSelectorAccess().getHASHMARKTerminalRuleCall_1());
+					}
+					match(input, RULE_HASHMARK, FOLLOW_RULE_HASHMARK_in_rule__IdSelector__Group__1__Impl12085);
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getIdSelectorAccess().getHASHMARKTerminalRuleCall_1());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__IdSelector__Group__1__Impl"
+
+
+	// $ANTLR start "rule__IdSelector__Group__2"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5855:1: rule__IdSelector__Group__2 : rule__IdSelector__Group__2__Impl ;
+	public final void rule__IdSelector__Group__2() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5859:1: ( rule__IdSelector__Group__2__Impl )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5860:2: rule__IdSelector__Group__2__Impl
+			{
+				pushFollow(FOLLOW_rule__IdSelector__Group__2__Impl_in_rule__IdSelector__Group__212114);
+				rule__IdSelector__Group__2__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__IdSelector__Group__2"
+
+
+	// $ANTLR start "rule__IdSelector__Group__2__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5866:1: rule__IdSelector__Group__2__Impl : ( ( rule__IdSelector__NameAssignment_2 ) ) ;
+	public final void rule__IdSelector__Group__2__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5870:1: ( ( ( rule__IdSelector__NameAssignment_2 ) ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5871:1: ( ( rule__IdSelector__NameAssignment_2 ) )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5871:1: ( ( rule__IdSelector__NameAssignment_2 ) )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5872:1: ( rule__IdSelector__NameAssignment_2 )
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getIdSelectorAccess().getNameAssignment_2());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5873:1: ( rule__IdSelector__NameAssignment_2 )
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5873:2: rule__IdSelector__NameAssignment_2
+					{
+						pushFollow(FOLLOW_rule__IdSelector__NameAssignment_2_in_rule__IdSelector__Group__2__Impl12141);
+						rule__IdSelector__NameAssignment_2();
+
+						state._fsp--;
+						if (state.failed) {
+							return;
+						}
+
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getIdSelectorAccess().getNameAssignment_2());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__IdSelector__Group__2__Impl"
+
+
+	// $ANTLR start "rule__Css_namespace_prefix__Group__0"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5889:1: rule__Css_namespace_prefix__Group__0 : rule__Css_namespace_prefix__Group__0__Impl
+	// rule__Css_namespace_prefix__Group__1 ;
+	public final void rule__Css_namespace_prefix__Group__0() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5893:1: ( rule__Css_namespace_prefix__Group__0__Impl rule__Css_namespace_prefix__Group__1 )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5894:2: rule__Css_namespace_prefix__Group__0__Impl rule__Css_namespace_prefix__Group__1
+			{
+				pushFollow(FOLLOW_rule__Css_namespace_prefix__Group__0__Impl_in_rule__Css_namespace_prefix__Group__012177);
+				rule__Css_namespace_prefix__Group__0__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				pushFollow(FOLLOW_rule__Css_namespace_prefix__Group__1_in_rule__Css_namespace_prefix__Group__012180);
+				rule__Css_namespace_prefix__Group__1();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Css_namespace_prefix__Group__0"
+
+
+	// $ANTLR start "rule__Css_namespace_prefix__Group__0__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5901:1: rule__Css_namespace_prefix__Group__0__Impl : ( ( rule__Css_namespace_prefix__Alternatives_0 )? ) ;
+	public final void rule__Css_namespace_prefix__Group__0__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5905:1: ( ( ( rule__Css_namespace_prefix__Alternatives_0 )? ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5906:1: ( ( rule__Css_namespace_prefix__Alternatives_0 )? )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5906:1: ( ( rule__Css_namespace_prefix__Alternatives_0 )? )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5907:1: ( rule__Css_namespace_prefix__Alternatives_0 )?
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getCss_namespace_prefixAccess().getAlternatives_0());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5908:1: ( rule__Css_namespace_prefix__Alternatives_0 )?
+					int alt73 = 2;
+					int LA73_0 = input.LA(1);
+
+					if (((LA73_0 >= RULE_DASH && LA73_0 <= RULE_UNDERSCORE) || (LA73_0 >= RULE_ONE_HEX_LETTER && LA73_0 <= RULE_ONE_NON_HEX_LETTER) || LA73_0 == 36 || (LA73_0 >= 49 && LA73_0 <= 52))) {
+						alt73 = 1;
+					}
+					switch (alt73) {
+					case 1:
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5908:2: rule__Css_namespace_prefix__Alternatives_0
+					{
+						pushFollow(FOLLOW_rule__Css_namespace_prefix__Alternatives_0_in_rule__Css_namespace_prefix__Group__0__Impl12207);
+						rule__Css_namespace_prefix__Alternatives_0();
+
+						state._fsp--;
+						if (state.failed) {
+							return;
+						}
+
+					}
+						break;
+
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getCss_namespace_prefixAccess().getAlternatives_0());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Css_namespace_prefix__Group__0__Impl"
+
+
+	// $ANTLR start "rule__Css_namespace_prefix__Group__1"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5918:1: rule__Css_namespace_prefix__Group__1 : rule__Css_namespace_prefix__Group__1__Impl ;
+	public final void rule__Css_namespace_prefix__Group__1() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5922:1: ( rule__Css_namespace_prefix__Group__1__Impl )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5923:2: rule__Css_namespace_prefix__Group__1__Impl
+			{
+				pushFollow(FOLLOW_rule__Css_namespace_prefix__Group__1__Impl_in_rule__Css_namespace_prefix__Group__112238);
+				rule__Css_namespace_prefix__Group__1__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Css_namespace_prefix__Group__1"
+
+
+	// $ANTLR start "rule__Css_namespace_prefix__Group__1__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5929:1: rule__Css_namespace_prefix__Group__1__Impl : ( '|' ) ;
+	public final void rule__Css_namespace_prefix__Group__1__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5933:1: ( ( '|' ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5934:1: ( '|' )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5934:1: ( '|' )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5935:1: '|'
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getCss_namespace_prefixAccess().getVerticalLineKeyword_1());
+					}
+					match(input, 60, FOLLOW_60_in_rule__Css_namespace_prefix__Group__1__Impl12266);
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getCss_namespace_prefixAccess().getVerticalLineKeyword_1());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Css_namespace_prefix__Group__1__Impl"
+
+
+	// $ANTLR start "rule__Css_declaration__Group__0"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5952:1: rule__Css_declaration__Group__0 : rule__Css_declaration__Group__0__Impl
+	// rule__Css_declaration__Group__1 ;
+	public final void rule__Css_declaration__Group__0() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5956:1: ( rule__Css_declaration__Group__0__Impl rule__Css_declaration__Group__1 )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5957:2: rule__Css_declaration__Group__0__Impl rule__Css_declaration__Group__1
+			{
+				pushFollow(FOLLOW_rule__Css_declaration__Group__0__Impl_in_rule__Css_declaration__Group__012301);
+				rule__Css_declaration__Group__0__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				pushFollow(FOLLOW_rule__Css_declaration__Group__1_in_rule__Css_declaration__Group__012304);
+				rule__Css_declaration__Group__1();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Css_declaration__Group__0"
+
+
+	// $ANTLR start "rule__Css_declaration__Group__0__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5964:1: rule__Css_declaration__Group__0__Impl : ( ( RULE_WS )* ) ;
+	public final void rule__Css_declaration__Group__0__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5968:1: ( ( ( RULE_WS )* ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5969:1: ( ( RULE_WS )* )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5969:1: ( ( RULE_WS )* )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5970:1: ( RULE_WS )*
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getCss_declarationAccess().getWSTerminalRuleCall_0());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5971:1: ( RULE_WS )*
+					loop74: do {
+						int alt74 = 2;
+						int LA74_0 = input.LA(1);
+
+						if ((LA74_0 == RULE_WS)) {
+							alt74 = 1;
+						}
+
+
+						switch (alt74) {
+						case 1:
+						// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5971:3: RULE_WS
+						{
+							match(input, RULE_WS, FOLLOW_RULE_WS_in_rule__Css_declaration__Group__0__Impl12332);
+							if (state.failed) {
+								return;
+							}
+
+						}
+							break;
+
+						default:
+							break loop74;
+						}
+					} while (true);
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getCss_declarationAccess().getWSTerminalRuleCall_0());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Css_declaration__Group__0__Impl"
+
+
+	// $ANTLR start "rule__Css_declaration__Group__1"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5981:1: rule__Css_declaration__Group__1 : rule__Css_declaration__Group__1__Impl
+	// rule__Css_declaration__Group__2 ;
+	public final void rule__Css_declaration__Group__1() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5985:1: ( rule__Css_declaration__Group__1__Impl rule__Css_declaration__Group__2 )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5986:2: rule__Css_declaration__Group__1__Impl rule__Css_declaration__Group__2
+			{
+				pushFollow(FOLLOW_rule__Css_declaration__Group__1__Impl_in_rule__Css_declaration__Group__112363);
+				rule__Css_declaration__Group__1__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				pushFollow(FOLLOW_rule__Css_declaration__Group__2_in_rule__Css_declaration__Group__112366);
+				rule__Css_declaration__Group__2();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Css_declaration__Group__1"
+
+
+	// $ANTLR start "rule__Css_declaration__Group__1__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5993:1: rule__Css_declaration__Group__1__Impl : ( ( rule__Css_declaration__PropertyAssignment_1 ) ) ;
+	public final void rule__Css_declaration__Group__1__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5997:1: ( ( ( rule__Css_declaration__PropertyAssignment_1 ) ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5998:1: ( ( rule__Css_declaration__PropertyAssignment_1 ) )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5998:1: ( ( rule__Css_declaration__PropertyAssignment_1 ) )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:5999:1: ( rule__Css_declaration__PropertyAssignment_1 )
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getCss_declarationAccess().getPropertyAssignment_1());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6000:1: ( rule__Css_declaration__PropertyAssignment_1 )
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6000:2: rule__Css_declaration__PropertyAssignment_1
+					{
+						pushFollow(FOLLOW_rule__Css_declaration__PropertyAssignment_1_in_rule__Css_declaration__Group__1__Impl12393);
+						rule__Css_declaration__PropertyAssignment_1();
+
+						state._fsp--;
+						if (state.failed) {
+							return;
+						}
+
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getCss_declarationAccess().getPropertyAssignment_1());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Css_declaration__Group__1__Impl"
+
+
+	// $ANTLR start "rule__Css_declaration__Group__2"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6010:1: rule__Css_declaration__Group__2 : rule__Css_declaration__Group__2__Impl
+	// rule__Css_declaration__Group__3 ;
+	public final void rule__Css_declaration__Group__2() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6014:1: ( rule__Css_declaration__Group__2__Impl rule__Css_declaration__Group__3 )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6015:2: rule__Css_declaration__Group__2__Impl rule__Css_declaration__Group__3
+			{
+				pushFollow(FOLLOW_rule__Css_declaration__Group__2__Impl_in_rule__Css_declaration__Group__212423);
+				rule__Css_declaration__Group__2__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				pushFollow(FOLLOW_rule__Css_declaration__Group__3_in_rule__Css_declaration__Group__212426);
+				rule__Css_declaration__Group__3();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Css_declaration__Group__2"
+
+
+	// $ANTLR start "rule__Css_declaration__Group__2__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6022:1: rule__Css_declaration__Group__2__Impl : ( ( RULE_WS )* ) ;
+	public final void rule__Css_declaration__Group__2__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6026:1: ( ( ( RULE_WS )* ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6027:1: ( ( RULE_WS )* )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6027:1: ( ( RULE_WS )* )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6028:1: ( RULE_WS )*
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getCss_declarationAccess().getWSTerminalRuleCall_2());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6029:1: ( RULE_WS )*
+					loop75: do {
+						int alt75 = 2;
+						int LA75_0 = input.LA(1);
+
+						if ((LA75_0 == RULE_WS)) {
+							alt75 = 1;
+						}
+
+
+						switch (alt75) {
+						case 1:
+						// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6029:3: RULE_WS
+						{
+							match(input, RULE_WS, FOLLOW_RULE_WS_in_rule__Css_declaration__Group__2__Impl12454);
+							if (state.failed) {
+								return;
+							}
+
+						}
+							break;
+
+						default:
+							break loop75;
+						}
+					} while (true);
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getCss_declarationAccess().getWSTerminalRuleCall_2());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Css_declaration__Group__2__Impl"
+
+
+	// $ANTLR start "rule__Css_declaration__Group__3"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6039:1: rule__Css_declaration__Group__3 : rule__Css_declaration__Group__3__Impl
+	// rule__Css_declaration__Group__4 ;
+	public final void rule__Css_declaration__Group__3() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6043:1: ( rule__Css_declaration__Group__3__Impl rule__Css_declaration__Group__4 )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6044:2: rule__Css_declaration__Group__3__Impl rule__Css_declaration__Group__4
+			{
+				pushFollow(FOLLOW_rule__Css_declaration__Group__3__Impl_in_rule__Css_declaration__Group__312485);
+				rule__Css_declaration__Group__3__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				pushFollow(FOLLOW_rule__Css_declaration__Group__4_in_rule__Css_declaration__Group__312488);
+				rule__Css_declaration__Group__4();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Css_declaration__Group__3"
+
+
+	// $ANTLR start "rule__Css_declaration__Group__3__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6051:1: rule__Css_declaration__Group__3__Impl : ( RULE_COLON ) ;
+	public final void rule__Css_declaration__Group__3__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6055:1: ( ( RULE_COLON ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6056:1: ( RULE_COLON )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6056:1: ( RULE_COLON )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6057:1: RULE_COLON
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getCss_declarationAccess().getCOLONTerminalRuleCall_3());
+					}
+					match(input, RULE_COLON, FOLLOW_RULE_COLON_in_rule__Css_declaration__Group__3__Impl12515);
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getCss_declarationAccess().getCOLONTerminalRuleCall_3());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Css_declaration__Group__3__Impl"
+
+
+	// $ANTLR start "rule__Css_declaration__Group__4"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6068:1: rule__Css_declaration__Group__4 : rule__Css_declaration__Group__4__Impl
+	// rule__Css_declaration__Group__5 ;
+	public final void rule__Css_declaration__Group__4() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6072:1: ( rule__Css_declaration__Group__4__Impl rule__Css_declaration__Group__5 )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6073:2: rule__Css_declaration__Group__4__Impl rule__Css_declaration__Group__5
+			{
+				pushFollow(FOLLOW_rule__Css_declaration__Group__4__Impl_in_rule__Css_declaration__Group__412544);
+				rule__Css_declaration__Group__4__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				pushFollow(FOLLOW_rule__Css_declaration__Group__5_in_rule__Css_declaration__Group__412547);
+				rule__Css_declaration__Group__5();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Css_declaration__Group__4"
+
+
+	// $ANTLR start "rule__Css_declaration__Group__4__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6080:1: rule__Css_declaration__Group__4__Impl : ( ( ( rule__Css_declaration__ValueTokensAssignment_4 ) ) ( (
+	// rule__Css_declaration__ValueTokensAssignment_4 )* ) ) ;
+	public final void rule__Css_declaration__Group__4__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6084:1: ( ( ( ( rule__Css_declaration__ValueTokensAssignment_4 ) ) ( (
+			// rule__Css_declaration__ValueTokensAssignment_4 )* ) ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6085:1: ( ( ( rule__Css_declaration__ValueTokensAssignment_4 ) ) ( (
+			// rule__Css_declaration__ValueTokensAssignment_4 )* ) )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6085:1: ( ( ( rule__Css_declaration__ValueTokensAssignment_4 ) ) ( (
+				// rule__Css_declaration__ValueTokensAssignment_4 )* ) )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6086:1: ( ( rule__Css_declaration__ValueTokensAssignment_4 ) ) ( (
+				// rule__Css_declaration__ValueTokensAssignment_4 )* )
+				{
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6086:1: ( ( rule__Css_declaration__ValueTokensAssignment_4 ) )
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6087:1: ( rule__Css_declaration__ValueTokensAssignment_4 )
+					{
+						if (state.backtracking == 0) {
+							before(grammarAccess.getCss_declarationAccess().getValueTokensAssignment_4());
+						}
+						// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6088:1: ( rule__Css_declaration__ValueTokensAssignment_4 )
+						// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6088:2: rule__Css_declaration__ValueTokensAssignment_4
+						{
+							pushFollow(FOLLOW_rule__Css_declaration__ValueTokensAssignment_4_in_rule__Css_declaration__Group__4__Impl12576);
+							rule__Css_declaration__ValueTokensAssignment_4();
+
+							state._fsp--;
+							if (state.failed) {
+								return;
+							}
+
+						}
+
+						if (state.backtracking == 0) {
+							after(grammarAccess.getCss_declarationAccess().getValueTokensAssignment_4());
+						}
+
+					}
+
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6091:1: ( ( rule__Css_declaration__ValueTokensAssignment_4 )* )
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6092:1: ( rule__Css_declaration__ValueTokensAssignment_4 )*
+					{
+						if (state.backtracking == 0) {
+							before(grammarAccess.getCss_declarationAccess().getValueTokensAssignment_4());
+						}
+						// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6093:1: ( rule__Css_declaration__ValueTokensAssignment_4 )*
+						loop76: do {
+							int alt76 = 2;
+							int LA76_0 = input.LA(1);
+
+							if (((LA76_0 >= RULE_CSSSTRING && LA76_0 <= RULE_UNDERSCORE) || (LA76_0 >= RULE_HASHMARK && LA76_0 <= RULE_WS) || LA76_0 == 39 || (LA76_0 >= 49 && LA76_0 <= 52) || LA76_0 == 64)) {
+								alt76 = 1;
+							}
+
+
+							switch (alt76) {
+							case 1:
+							// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6093:2: rule__Css_declaration__ValueTokensAssignment_4
+							{
+								pushFollow(FOLLOW_rule__Css_declaration__ValueTokensAssignment_4_in_rule__Css_declaration__Group__4__Impl12588);
+								rule__Css_declaration__ValueTokensAssignment_4();
+
+								state._fsp--;
+								if (state.failed) {
+									return;
+								}
+
+							}
+								break;
+
+							default:
+								break loop76;
+							}
+						} while (true);
+
+						if (state.backtracking == 0) {
+							after(grammarAccess.getCss_declarationAccess().getValueTokensAssignment_4());
+						}
+
+					}
+
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Css_declaration__Group__4__Impl"
+
+
+	// $ANTLR start "rule__Css_declaration__Group__5"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6104:1: rule__Css_declaration__Group__5 : rule__Css_declaration__Group__5__Impl ;
+	public final void rule__Css_declaration__Group__5() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6108:1: ( rule__Css_declaration__Group__5__Impl )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6109:2: rule__Css_declaration__Group__5__Impl
+			{
+				pushFollow(FOLLOW_rule__Css_declaration__Group__5__Impl_in_rule__Css_declaration__Group__512621);
+				rule__Css_declaration__Group__5__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Css_declaration__Group__5"
+
+
+	// $ANTLR start "rule__Css_declaration__Group__5__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6115:1: rule__Css_declaration__Group__5__Impl : ( ( rule__Css_declaration__ImportantAssignment_5 )? ) ;
+	public final void rule__Css_declaration__Group__5__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6119:1: ( ( ( rule__Css_declaration__ImportantAssignment_5 )? ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6120:1: ( ( rule__Css_declaration__ImportantAssignment_5 )? )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6120:1: ( ( rule__Css_declaration__ImportantAssignment_5 )? )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6121:1: ( rule__Css_declaration__ImportantAssignment_5 )?
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getCss_declarationAccess().getImportantAssignment_5());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6122:1: ( rule__Css_declaration__ImportantAssignment_5 )?
+					int alt77 = 2;
+					int LA77_0 = input.LA(1);
+
+					if ((LA77_0 == RULE_IMPORTANT_SYM)) {
+						alt77 = 1;
+					}
+					switch (alt77) {
+					case 1:
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6122:2: rule__Css_declaration__ImportantAssignment_5
+					{
+						pushFollow(FOLLOW_rule__Css_declaration__ImportantAssignment_5_in_rule__Css_declaration__Group__5__Impl12648);
+						rule__Css_declaration__ImportantAssignment_5();
+
+						state._fsp--;
+						if (state.failed) {
+							return;
+						}
+
+					}
+						break;
+
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getCss_declarationAccess().getImportantAssignment_5());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Css_declaration__Group__5__Impl"
+
+
+	// $ANTLR start "rule__Css_property__Group__0"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6144:1: rule__Css_property__Group__0 : rule__Css_property__Group__0__Impl rule__Css_property__Group__1 ;
+	public final void rule__Css_property__Group__0() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6148:1: ( rule__Css_property__Group__0__Impl rule__Css_property__Group__1 )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6149:2: rule__Css_property__Group__0__Impl rule__Css_property__Group__1
+			{
+				pushFollow(FOLLOW_rule__Css_property__Group__0__Impl_in_rule__Css_property__Group__012691);
+				rule__Css_property__Group__0__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				pushFollow(FOLLOW_rule__Css_property__Group__1_in_rule__Css_property__Group__012694);
+				rule__Css_property__Group__1();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Css_property__Group__0"
+
+
+	// $ANTLR start "rule__Css_property__Group__0__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6156:1: rule__Css_property__Group__0__Impl : ( () ) ;
+	public final void rule__Css_property__Group__0__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6160:1: ( ( () ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6161:1: ( () )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6161:1: ( () )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6162:1: ()
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getCss_propertyAccess().getCss_propertyAction_0());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6163:1: ()
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6165:1:
+					{
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getCss_propertyAccess().getCss_propertyAction_0());
+					}
+
+				}
+
+
+			}
+
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Css_property__Group__0__Impl"
+
+
+	// $ANTLR start "rule__Css_property__Group__1"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6175:1: rule__Css_property__Group__1 : rule__Css_property__Group__1__Impl ;
+	public final void rule__Css_property__Group__1() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6179:1: ( rule__Css_property__Group__1__Impl )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6180:2: rule__Css_property__Group__1__Impl
+			{
+				pushFollow(FOLLOW_rule__Css_property__Group__1__Impl_in_rule__Css_property__Group__112752);
+				rule__Css_property__Group__1__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Css_property__Group__1"
+
+
+	// $ANTLR start "rule__Css_property__Group__1__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6186:1: rule__Css_property__Group__1__Impl : ( ( rule__Css_property__NameAssignment_1 ) ) ;
+	public final void rule__Css_property__Group__1__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6190:1: ( ( ( rule__Css_property__NameAssignment_1 ) ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6191:1: ( ( rule__Css_property__NameAssignment_1 ) )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6191:1: ( ( rule__Css_property__NameAssignment_1 ) )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6192:1: ( rule__Css_property__NameAssignment_1 )
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getCss_propertyAccess().getNameAssignment_1());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6193:1: ( rule__Css_property__NameAssignment_1 )
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6193:2: rule__Css_property__NameAssignment_1
+					{
+						pushFollow(FOLLOW_rule__Css_property__NameAssignment_1_in_rule__Css_property__Group__1__Impl12779);
+						rule__Css_property__NameAssignment_1();
+
+						state._fsp--;
+						if (state.failed) {
+							return;
+						}
+
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getCss_propertyAccess().getNameAssignment_1());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Css_property__Group__1__Impl"
+
+
+	// $ANTLR start "rule__PseudoClass__Group__0"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6207:1: rule__PseudoClass__Group__0 : rule__PseudoClass__Group__0__Impl rule__PseudoClass__Group__1 ;
+	public final void rule__PseudoClass__Group__0() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6211:1: ( rule__PseudoClass__Group__0__Impl rule__PseudoClass__Group__1 )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6212:2: rule__PseudoClass__Group__0__Impl rule__PseudoClass__Group__1
+			{
+				pushFollow(FOLLOW_rule__PseudoClass__Group__0__Impl_in_rule__PseudoClass__Group__012813);
+				rule__PseudoClass__Group__0__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				pushFollow(FOLLOW_rule__PseudoClass__Group__1_in_rule__PseudoClass__Group__012816);
+				rule__PseudoClass__Group__1();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__PseudoClass__Group__0"
+
+
+	// $ANTLR start "rule__PseudoClass__Group__0__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6219:1: rule__PseudoClass__Group__0__Impl : ( RULE_COLON ) ;
+	public final void rule__PseudoClass__Group__0__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6223:1: ( ( RULE_COLON ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6224:1: ( RULE_COLON )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6224:1: ( RULE_COLON )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6225:1: RULE_COLON
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getPseudoClassAccess().getCOLONTerminalRuleCall_0());
+					}
+					match(input, RULE_COLON, FOLLOW_RULE_COLON_in_rule__PseudoClass__Group__0__Impl12843);
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getPseudoClassAccess().getCOLONTerminalRuleCall_0());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__PseudoClass__Group__0__Impl"
+
+
+	// $ANTLR start "rule__PseudoClass__Group__1"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6236:1: rule__PseudoClass__Group__1 : rule__PseudoClass__Group__1__Impl rule__PseudoClass__Group__2 ;
+	public final void rule__PseudoClass__Group__1() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6240:1: ( rule__PseudoClass__Group__1__Impl rule__PseudoClass__Group__2 )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6241:2: rule__PseudoClass__Group__1__Impl rule__PseudoClass__Group__2
+			{
+				pushFollow(FOLLOW_rule__PseudoClass__Group__1__Impl_in_rule__PseudoClass__Group__112872);
+				rule__PseudoClass__Group__1__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				pushFollow(FOLLOW_rule__PseudoClass__Group__2_in_rule__PseudoClass__Group__112875);
+				rule__PseudoClass__Group__2();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__PseudoClass__Group__1"
+
+
+	// $ANTLR start "rule__PseudoClass__Group__1__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6248:1: rule__PseudoClass__Group__1__Impl : ( ( RULE_COLON )? ) ;
+	public final void rule__PseudoClass__Group__1__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6252:1: ( ( ( RULE_COLON )? ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6253:1: ( ( RULE_COLON )? )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6253:1: ( ( RULE_COLON )? )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6254:1: ( RULE_COLON )?
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getPseudoClassAccess().getCOLONTerminalRuleCall_1());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6255:1: ( RULE_COLON )?
+					int alt78 = 2;
+					int LA78_0 = input.LA(1);
+
+					if ((LA78_0 == RULE_COLON)) {
+						alt78 = 1;
+					}
+					switch (alt78) {
+					case 1:
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6255:3: RULE_COLON
+					{
+						match(input, RULE_COLON, FOLLOW_RULE_COLON_in_rule__PseudoClass__Group__1__Impl12903);
+						if (state.failed) {
+							return;
+						}
+
+					}
+						break;
+
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getPseudoClassAccess().getCOLONTerminalRuleCall_1());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__PseudoClass__Group__1__Impl"
+
+
+	// $ANTLR start "rule__PseudoClass__Group__2"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6265:1: rule__PseudoClass__Group__2 : rule__PseudoClass__Group__2__Impl ;
+	public final void rule__PseudoClass__Group__2() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6269:1: ( rule__PseudoClass__Group__2__Impl )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6270:2: rule__PseudoClass__Group__2__Impl
+			{
+				pushFollow(FOLLOW_rule__PseudoClass__Group__2__Impl_in_rule__PseudoClass__Group__212934);
+				rule__PseudoClass__Group__2__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__PseudoClass__Group__2"
+
+
+	// $ANTLR start "rule__PseudoClass__Group__2__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6276:1: rule__PseudoClass__Group__2__Impl : ( rulePseudoClassName ) ;
+	public final void rule__PseudoClass__Group__2__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6280:1: ( ( rulePseudoClassName ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6281:1: ( rulePseudoClassName )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6281:1: ( rulePseudoClassName )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6282:1: rulePseudoClassName
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getPseudoClassAccess().getPseudoClassNameParserRuleCall_2());
+					}
+					pushFollow(FOLLOW_rulePseudoClassName_in_rule__PseudoClass__Group__2__Impl12961);
+					rulePseudoClassName();
+
+					state._fsp--;
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getPseudoClassAccess().getPseudoClassNameParserRuleCall_2());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__PseudoClass__Group__2__Impl"
+
+
+	// $ANTLR start "rule__PseudoClassFunction__Group_0__0"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6299:1: rule__PseudoClassFunction__Group_0__0 : rule__PseudoClassFunction__Group_0__0__Impl
+	// rule__PseudoClassFunction__Group_0__1 ;
+	public final void rule__PseudoClassFunction__Group_0__0() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6303:1: ( rule__PseudoClassFunction__Group_0__0__Impl rule__PseudoClassFunction__Group_0__1 )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6304:2: rule__PseudoClassFunction__Group_0__0__Impl rule__PseudoClassFunction__Group_0__1
+			{
+				pushFollow(FOLLOW_rule__PseudoClassFunction__Group_0__0__Impl_in_rule__PseudoClassFunction__Group_0__012996);
+				rule__PseudoClassFunction__Group_0__0__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				pushFollow(FOLLOW_rule__PseudoClassFunction__Group_0__1_in_rule__PseudoClassFunction__Group_0__012999);
+				rule__PseudoClassFunction__Group_0__1();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__PseudoClassFunction__Group_0__0"
+
+
+	// $ANTLR start "rule__PseudoClassFunction__Group_0__0__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6311:1: rule__PseudoClassFunction__Group_0__0__Impl : ( ( rule__PseudoClassFunction__NotAssignment_0_0 ) ) ;
+	public final void rule__PseudoClassFunction__Group_0__0__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6315:1: ( ( ( rule__PseudoClassFunction__NotAssignment_0_0 ) ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6316:1: ( ( rule__PseudoClassFunction__NotAssignment_0_0 ) )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6316:1: ( ( rule__PseudoClassFunction__NotAssignment_0_0 ) )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6317:1: ( rule__PseudoClassFunction__NotAssignment_0_0 )
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getPseudoClassFunctionAccess().getNotAssignment_0_0());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6318:1: ( rule__PseudoClassFunction__NotAssignment_0_0 )
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6318:2: rule__PseudoClassFunction__NotAssignment_0_0
+					{
+						pushFollow(FOLLOW_rule__PseudoClassFunction__NotAssignment_0_0_in_rule__PseudoClassFunction__Group_0__0__Impl13026);
+						rule__PseudoClassFunction__NotAssignment_0_0();
+
+						state._fsp--;
+						if (state.failed) {
+							return;
+						}
+
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getPseudoClassFunctionAccess().getNotAssignment_0_0());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__PseudoClassFunction__Group_0__0__Impl"
+
+
+	// $ANTLR start "rule__PseudoClassFunction__Group_0__1"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6328:1: rule__PseudoClassFunction__Group_0__1 : rule__PseudoClassFunction__Group_0__1__Impl
+	// rule__PseudoClassFunction__Group_0__2 ;
+	public final void rule__PseudoClassFunction__Group_0__1() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6332:1: ( rule__PseudoClassFunction__Group_0__1__Impl rule__PseudoClassFunction__Group_0__2 )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6333:2: rule__PseudoClassFunction__Group_0__1__Impl rule__PseudoClassFunction__Group_0__2
+			{
+				pushFollow(FOLLOW_rule__PseudoClassFunction__Group_0__1__Impl_in_rule__PseudoClassFunction__Group_0__113056);
+				rule__PseudoClassFunction__Group_0__1__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				pushFollow(FOLLOW_rule__PseudoClassFunction__Group_0__2_in_rule__PseudoClassFunction__Group_0__113059);
+				rule__PseudoClassFunction__Group_0__2();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__PseudoClassFunction__Group_0__1"
+
+
+	// $ANTLR start "rule__PseudoClassFunction__Group_0__1__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6340:1: rule__PseudoClassFunction__Group_0__1__Impl : ( (
+	// rule__PseudoClassFunction__ParamSelectorAssignment_0_1 ) ) ;
+	public final void rule__PseudoClassFunction__Group_0__1__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6344:1: ( ( ( rule__PseudoClassFunction__ParamSelectorAssignment_0_1 ) ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6345:1: ( ( rule__PseudoClassFunction__ParamSelectorAssignment_0_1 ) )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6345:1: ( ( rule__PseudoClassFunction__ParamSelectorAssignment_0_1 ) )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6346:1: ( rule__PseudoClassFunction__ParamSelectorAssignment_0_1 )
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getPseudoClassFunctionAccess().getParamSelectorAssignment_0_1());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6347:1: ( rule__PseudoClassFunction__ParamSelectorAssignment_0_1 )
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6347:2: rule__PseudoClassFunction__ParamSelectorAssignment_0_1
+					{
+						pushFollow(FOLLOW_rule__PseudoClassFunction__ParamSelectorAssignment_0_1_in_rule__PseudoClassFunction__Group_0__1__Impl13086);
+						rule__PseudoClassFunction__ParamSelectorAssignment_0_1();
+
+						state._fsp--;
+						if (state.failed) {
+							return;
+						}
+
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getPseudoClassFunctionAccess().getParamSelectorAssignment_0_1());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__PseudoClassFunction__Group_0__1__Impl"
+
+
+	// $ANTLR start "rule__PseudoClassFunction__Group_0__2"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6357:1: rule__PseudoClassFunction__Group_0__2 : rule__PseudoClassFunction__Group_0__2__Impl ;
+	public final void rule__PseudoClassFunction__Group_0__2() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6361:1: ( rule__PseudoClassFunction__Group_0__2__Impl )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6362:2: rule__PseudoClassFunction__Group_0__2__Impl
+			{
+				pushFollow(FOLLOW_rule__PseudoClassFunction__Group_0__2__Impl_in_rule__PseudoClassFunction__Group_0__213116);
+				rule__PseudoClassFunction__Group_0__2__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__PseudoClassFunction__Group_0__2"
+
+
+	// $ANTLR start "rule__PseudoClassFunction__Group_0__2__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6368:1: rule__PseudoClassFunction__Group_0__2__Impl : ( ')' ) ;
+	public final void rule__PseudoClassFunction__Group_0__2__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6372:1: ( ( ')' ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6373:1: ( ')' )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6373:1: ( ')' )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6374:1: ')'
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getPseudoClassFunctionAccess().getRightParenthesisKeyword_0_2());
+					}
+					match(input, 61, FOLLOW_61_in_rule__PseudoClassFunction__Group_0__2__Impl13144);
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getPseudoClassFunctionAccess().getRightParenthesisKeyword_0_2());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__PseudoClassFunction__Group_0__2__Impl"
+
+
+	// $ANTLR start "rule__PseudoClassFunction__Group_1__0"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6393:1: rule__PseudoClassFunction__Group_1__0 : rule__PseudoClassFunction__Group_1__0__Impl
+	// rule__PseudoClassFunction__Group_1__1 ;
+	public final void rule__PseudoClassFunction__Group_1__0() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6397:1: ( rule__PseudoClassFunction__Group_1__0__Impl rule__PseudoClassFunction__Group_1__1 )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6398:2: rule__PseudoClassFunction__Group_1__0__Impl rule__PseudoClassFunction__Group_1__1
+			{
+				pushFollow(FOLLOW_rule__PseudoClassFunction__Group_1__0__Impl_in_rule__PseudoClassFunction__Group_1__013181);
+				rule__PseudoClassFunction__Group_1__0__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				pushFollow(FOLLOW_rule__PseudoClassFunction__Group_1__1_in_rule__PseudoClassFunction__Group_1__013184);
+				rule__PseudoClassFunction__Group_1__1();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__PseudoClassFunction__Group_1__0"
+
+
+	// $ANTLR start "rule__PseudoClassFunction__Group_1__0__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6405:1: rule__PseudoClassFunction__Group_1__0__Impl : ( RULE_COLON ) ;
+	public final void rule__PseudoClassFunction__Group_1__0__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6409:1: ( ( RULE_COLON ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6410:1: ( RULE_COLON )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6410:1: ( RULE_COLON )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6411:1: RULE_COLON
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getPseudoClassFunctionAccess().getCOLONTerminalRuleCall_1_0());
+					}
+					match(input, RULE_COLON, FOLLOW_RULE_COLON_in_rule__PseudoClassFunction__Group_1__0__Impl13211);
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getPseudoClassFunctionAccess().getCOLONTerminalRuleCall_1_0());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__PseudoClassFunction__Group_1__0__Impl"
+
+
+	// $ANTLR start "rule__PseudoClassFunction__Group_1__1"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6422:1: rule__PseudoClassFunction__Group_1__1 : rule__PseudoClassFunction__Group_1__1__Impl
+	// rule__PseudoClassFunction__Group_1__2 ;
+	public final void rule__PseudoClassFunction__Group_1__1() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6426:1: ( rule__PseudoClassFunction__Group_1__1__Impl rule__PseudoClassFunction__Group_1__2 )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6427:2: rule__PseudoClassFunction__Group_1__1__Impl rule__PseudoClassFunction__Group_1__2
+			{
+				pushFollow(FOLLOW_rule__PseudoClassFunction__Group_1__1__Impl_in_rule__PseudoClassFunction__Group_1__113240);
+				rule__PseudoClassFunction__Group_1__1__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				pushFollow(FOLLOW_rule__PseudoClassFunction__Group_1__2_in_rule__PseudoClassFunction__Group_1__113243);
+				rule__PseudoClassFunction__Group_1__2();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__PseudoClassFunction__Group_1__1"
+
+
+	// $ANTLR start "rule__PseudoClassFunction__Group_1__1__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6434:1: rule__PseudoClassFunction__Group_1__1__Impl : ( ( rule__PseudoClassFunction__NameAssignment_1_1 ) ) ;
+	public final void rule__PseudoClassFunction__Group_1__1__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6438:1: ( ( ( rule__PseudoClassFunction__NameAssignment_1_1 ) ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6439:1: ( ( rule__PseudoClassFunction__NameAssignment_1_1 ) )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6439:1: ( ( rule__PseudoClassFunction__NameAssignment_1_1 ) )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6440:1: ( rule__PseudoClassFunction__NameAssignment_1_1 )
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getPseudoClassFunctionAccess().getNameAssignment_1_1());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6441:1: ( rule__PseudoClassFunction__NameAssignment_1_1 )
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6441:2: rule__PseudoClassFunction__NameAssignment_1_1
+					{
+						pushFollow(FOLLOW_rule__PseudoClassFunction__NameAssignment_1_1_in_rule__PseudoClassFunction__Group_1__1__Impl13270);
+						rule__PseudoClassFunction__NameAssignment_1_1();
+
+						state._fsp--;
+						if (state.failed) {
+							return;
+						}
+
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getPseudoClassFunctionAccess().getNameAssignment_1_1());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__PseudoClassFunction__Group_1__1__Impl"
+
+
+	// $ANTLR start "rule__PseudoClassFunction__Group_1__2"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6451:1: rule__PseudoClassFunction__Group_1__2 : rule__PseudoClassFunction__Group_1__2__Impl
+	// rule__PseudoClassFunction__Group_1__3 ;
+	public final void rule__PseudoClassFunction__Group_1__2() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6455:1: ( rule__PseudoClassFunction__Group_1__2__Impl rule__PseudoClassFunction__Group_1__3 )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6456:2: rule__PseudoClassFunction__Group_1__2__Impl rule__PseudoClassFunction__Group_1__3
+			{
+				pushFollow(FOLLOW_rule__PseudoClassFunction__Group_1__2__Impl_in_rule__PseudoClassFunction__Group_1__213300);
+				rule__PseudoClassFunction__Group_1__2__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				pushFollow(FOLLOW_rule__PseudoClassFunction__Group_1__3_in_rule__PseudoClassFunction__Group_1__213303);
+				rule__PseudoClassFunction__Group_1__3();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__PseudoClassFunction__Group_1__2"
+
+
+	// $ANTLR start "rule__PseudoClassFunction__Group_1__2__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6463:1: rule__PseudoClassFunction__Group_1__2__Impl : ( '(' ) ;
+	public final void rule__PseudoClassFunction__Group_1__2__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6467:1: ( ( '(' ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6468:1: ( '(' )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6468:1: ( '(' )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6469:1: '('
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getPseudoClassFunctionAccess().getLeftParenthesisKeyword_1_2());
+					}
+					match(input, 62, FOLLOW_62_in_rule__PseudoClassFunction__Group_1__2__Impl13331);
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getPseudoClassFunctionAccess().getLeftParenthesisKeyword_1_2());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__PseudoClassFunction__Group_1__2__Impl"
+
+
+	// $ANTLR start "rule__PseudoClassFunction__Group_1__3"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6482:1: rule__PseudoClassFunction__Group_1__3 : rule__PseudoClassFunction__Group_1__3__Impl
+	// rule__PseudoClassFunction__Group_1__4 ;
+	public final void rule__PseudoClassFunction__Group_1__3() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6486:1: ( rule__PseudoClassFunction__Group_1__3__Impl rule__PseudoClassFunction__Group_1__4 )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6487:2: rule__PseudoClassFunction__Group_1__3__Impl rule__PseudoClassFunction__Group_1__4
+			{
+				pushFollow(FOLLOW_rule__PseudoClassFunction__Group_1__3__Impl_in_rule__PseudoClassFunction__Group_1__313362);
+				rule__PseudoClassFunction__Group_1__3__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				pushFollow(FOLLOW_rule__PseudoClassFunction__Group_1__4_in_rule__PseudoClassFunction__Group_1__313365);
+				rule__PseudoClassFunction__Group_1__4();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__PseudoClassFunction__Group_1__3"
+
+
+	// $ANTLR start "rule__PseudoClassFunction__Group_1__3__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6494:1: rule__PseudoClassFunction__Group_1__3__Impl : ( ( rule__PseudoClassFunction__ParamsAssignment_1_3 )*
+	// ) ;
+	public final void rule__PseudoClassFunction__Group_1__3__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6498:1: ( ( ( rule__PseudoClassFunction__ParamsAssignment_1_3 )* ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6499:1: ( ( rule__PseudoClassFunction__ParamsAssignment_1_3 )* )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6499:1: ( ( rule__PseudoClassFunction__ParamsAssignment_1_3 )* )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6500:1: ( rule__PseudoClassFunction__ParamsAssignment_1_3 )*
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getPseudoClassFunctionAccess().getParamsAssignment_1_3());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6501:1: ( rule__PseudoClassFunction__ParamsAssignment_1_3 )*
+					loop79: do {
+						int alt79 = 2;
+						int LA79_0 = input.LA(1);
+
+						if (((LA79_0 >= RULE_CSSSTRING && LA79_0 <= RULE_UNDERSCORE) || (LA79_0 >= RULE_HASHMARK && LA79_0 <= RULE_WS) || LA79_0 == 39 || (LA79_0 >= 49 && LA79_0 <= 52) || LA79_0 == 64)) {
+							alt79 = 1;
+						}
+
+
+						switch (alt79) {
+						case 1:
+						// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6501:2: rule__PseudoClassFunction__ParamsAssignment_1_3
+						{
+							pushFollow(FOLLOW_rule__PseudoClassFunction__ParamsAssignment_1_3_in_rule__PseudoClassFunction__Group_1__3__Impl13392);
+							rule__PseudoClassFunction__ParamsAssignment_1_3();
+
+							state._fsp--;
+							if (state.failed) {
+								return;
+							}
+
+						}
+							break;
+
+						default:
+							break loop79;
+						}
+					} while (true);
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getPseudoClassFunctionAccess().getParamsAssignment_1_3());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__PseudoClassFunction__Group_1__3__Impl"
+
+
+	// $ANTLR start "rule__PseudoClassFunction__Group_1__4"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6511:1: rule__PseudoClassFunction__Group_1__4 : rule__PseudoClassFunction__Group_1__4__Impl ;
+	public final void rule__PseudoClassFunction__Group_1__4() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6515:1: ( rule__PseudoClassFunction__Group_1__4__Impl )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6516:2: rule__PseudoClassFunction__Group_1__4__Impl
+			{
+				pushFollow(FOLLOW_rule__PseudoClassFunction__Group_1__4__Impl_in_rule__PseudoClassFunction__Group_1__413423);
+				rule__PseudoClassFunction__Group_1__4__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__PseudoClassFunction__Group_1__4"
+
+
+	// $ANTLR start "rule__PseudoClassFunction__Group_1__4__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6522:1: rule__PseudoClassFunction__Group_1__4__Impl : ( ')' ) ;
+	public final void rule__PseudoClassFunction__Group_1__4__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6526:1: ( ( ')' ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6527:1: ( ')' )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6527:1: ( ')' )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6528:1: ')'
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getPseudoClassFunctionAccess().getRightParenthesisKeyword_1_4());
+					}
+					match(input, 61, FOLLOW_61_in_rule__PseudoClassFunction__Group_1__4__Impl13451);
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getPseudoClassFunctionAccess().getRightParenthesisKeyword_1_4());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__PseudoClassFunction__Group_1__4__Impl"
+
+
+	// $ANTLR start "rule__NotFunctionCall__Group__0"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6551:1: rule__NotFunctionCall__Group__0 : rule__NotFunctionCall__Group__0__Impl
+	// rule__NotFunctionCall__Group__1 ;
+	public final void rule__NotFunctionCall__Group__0() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6555:1: ( rule__NotFunctionCall__Group__0__Impl rule__NotFunctionCall__Group__1 )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6556:2: rule__NotFunctionCall__Group__0__Impl rule__NotFunctionCall__Group__1
+			{
+				pushFollow(FOLLOW_rule__NotFunctionCall__Group__0__Impl_in_rule__NotFunctionCall__Group__013492);
+				rule__NotFunctionCall__Group__0__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				pushFollow(FOLLOW_rule__NotFunctionCall__Group__1_in_rule__NotFunctionCall__Group__013495);
+				rule__NotFunctionCall__Group__1();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__NotFunctionCall__Group__0"
+
+
+	// $ANTLR start "rule__NotFunctionCall__Group__0__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6563:1: rule__NotFunctionCall__Group__0__Impl : ( RULE_COLON ) ;
+	public final void rule__NotFunctionCall__Group__0__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6567:1: ( ( RULE_COLON ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6568:1: ( RULE_COLON )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6568:1: ( RULE_COLON )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6569:1: RULE_COLON
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getNotFunctionCallAccess().getCOLONTerminalRuleCall_0());
+					}
+					match(input, RULE_COLON, FOLLOW_RULE_COLON_in_rule__NotFunctionCall__Group__0__Impl13522);
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getNotFunctionCallAccess().getCOLONTerminalRuleCall_0());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__NotFunctionCall__Group__0__Impl"
+
+
+	// $ANTLR start "rule__NotFunctionCall__Group__1"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6580:1: rule__NotFunctionCall__Group__1 : rule__NotFunctionCall__Group__1__Impl ;
+	public final void rule__NotFunctionCall__Group__1() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6584:1: ( rule__NotFunctionCall__Group__1__Impl )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6585:2: rule__NotFunctionCall__Group__1__Impl
+			{
+				pushFollow(FOLLOW_rule__NotFunctionCall__Group__1__Impl_in_rule__NotFunctionCall__Group__113551);
+				rule__NotFunctionCall__Group__1__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__NotFunctionCall__Group__1"
+
+
+	// $ANTLR start "rule__NotFunctionCall__Group__1__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6591:1: rule__NotFunctionCall__Group__1__Impl : ( 'not(' ) ;
+	public final void rule__NotFunctionCall__Group__1__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6595:1: ( ( 'not(' ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6596:1: ( 'not(' )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6596:1: ( 'not(' )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6597:1: 'not('
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getNotFunctionCallAccess().getNotKeyword_1());
+					}
+					match(input, 63, FOLLOW_63_in_rule__NotFunctionCall__Group__1__Impl13579);
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getNotFunctionCallAccess().getNotKeyword_1());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__NotFunctionCall__Group__1__Impl"
+
+
+	// $ANTLR start "rule__SymbolTok__Group__0"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6614:1: rule__SymbolTok__Group__0 : rule__SymbolTok__Group__0__Impl rule__SymbolTok__Group__1 ;
+	public final void rule__SymbolTok__Group__0() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6618:1: ( rule__SymbolTok__Group__0__Impl rule__SymbolTok__Group__1 )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6619:2: rule__SymbolTok__Group__0__Impl rule__SymbolTok__Group__1
+			{
+				pushFollow(FOLLOW_rule__SymbolTok__Group__0__Impl_in_rule__SymbolTok__Group__013614);
+				rule__SymbolTok__Group__0__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				pushFollow(FOLLOW_rule__SymbolTok__Group__1_in_rule__SymbolTok__Group__013617);
+				rule__SymbolTok__Group__1();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__SymbolTok__Group__0"
+
+
+	// $ANTLR start "rule__SymbolTok__Group__0__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6626:1: rule__SymbolTok__Group__0__Impl : ( () ) ;
+	public final void rule__SymbolTok__Group__0__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6630:1: ( ( () ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6631:1: ( () )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6631:1: ( () )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6632:1: ()
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getSymbolTokAccess().getSymbolTokAction_0());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6633:1: ()
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6635:1:
+					{
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getSymbolTokAccess().getSymbolTokAction_0());
+					}
+
+				}
+
+
+			}
+
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__SymbolTok__Group__0__Impl"
+
+
+	// $ANTLR start "rule__SymbolTok__Group__1"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6645:1: rule__SymbolTok__Group__1 : rule__SymbolTok__Group__1__Impl ;
+	public final void rule__SymbolTok__Group__1() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6649:1: ( rule__SymbolTok__Group__1__Impl )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6650:2: rule__SymbolTok__Group__1__Impl
+			{
+				pushFollow(FOLLOW_rule__SymbolTok__Group__1__Impl_in_rule__SymbolTok__Group__113675);
+				rule__SymbolTok__Group__1__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__SymbolTok__Group__1"
+
+
+	// $ANTLR start "rule__SymbolTok__Group__1__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6656:1: rule__SymbolTok__Group__1__Impl : ( ( rule__SymbolTok__SymbolAssignment_1 ) ) ;
+	public final void rule__SymbolTok__Group__1__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6660:1: ( ( ( rule__SymbolTok__SymbolAssignment_1 ) ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6661:1: ( ( rule__SymbolTok__SymbolAssignment_1 ) )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6661:1: ( ( rule__SymbolTok__SymbolAssignment_1 ) )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6662:1: ( rule__SymbolTok__SymbolAssignment_1 )
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getSymbolTokAccess().getSymbolAssignment_1());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6663:1: ( rule__SymbolTok__SymbolAssignment_1 )
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6663:2: rule__SymbolTok__SymbolAssignment_1
+					{
+						pushFollow(FOLLOW_rule__SymbolTok__SymbolAssignment_1_in_rule__SymbolTok__Group__1__Impl13702);
+						rule__SymbolTok__SymbolAssignment_1();
+
+						state._fsp--;
+						if (state.failed) {
+							return;
+						}
+
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getSymbolTokAccess().getSymbolAssignment_1());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__SymbolTok__Group__1__Impl"
+
+
+	// $ANTLR start "rule__WSTok__Group__0"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6677:1: rule__WSTok__Group__0 : rule__WSTok__Group__0__Impl rule__WSTok__Group__1 ;
+	public final void rule__WSTok__Group__0() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6681:1: ( rule__WSTok__Group__0__Impl rule__WSTok__Group__1 )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6682:2: rule__WSTok__Group__0__Impl rule__WSTok__Group__1
+			{
+				pushFollow(FOLLOW_rule__WSTok__Group__0__Impl_in_rule__WSTok__Group__013736);
+				rule__WSTok__Group__0__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				pushFollow(FOLLOW_rule__WSTok__Group__1_in_rule__WSTok__Group__013739);
+				rule__WSTok__Group__1();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__WSTok__Group__0"
+
+
+	// $ANTLR start "rule__WSTok__Group__0__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6689:1: rule__WSTok__Group__0__Impl : ( () ) ;
+	public final void rule__WSTok__Group__0__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6693:1: ( ( () ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6694:1: ( () )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6694:1: ( () )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6695:1: ()
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getWSTokAccess().getWSTokAction_0());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6696:1: ()
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6698:1:
+					{
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getWSTokAccess().getWSTokAction_0());
+					}
+
+				}
+
+
+			}
+
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__WSTok__Group__0__Impl"
+
+
+	// $ANTLR start "rule__WSTok__Group__1"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6708:1: rule__WSTok__Group__1 : rule__WSTok__Group__1__Impl ;
+	public final void rule__WSTok__Group__1() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6712:1: ( rule__WSTok__Group__1__Impl )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6713:2: rule__WSTok__Group__1__Impl
+			{
+				pushFollow(FOLLOW_rule__WSTok__Group__1__Impl_in_rule__WSTok__Group__113797);
+				rule__WSTok__Group__1__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__WSTok__Group__1"
+
+
+	// $ANTLR start "rule__WSTok__Group__1__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6719:1: rule__WSTok__Group__1__Impl : ( RULE_WS ) ;
+	public final void rule__WSTok__Group__1__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6723:1: ( ( RULE_WS ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6724:1: ( RULE_WS )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6724:1: ( RULE_WS )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6725:1: RULE_WS
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getWSTokAccess().getWSTerminalRuleCall_1());
+					}
+					match(input, RULE_WS, FOLLOW_RULE_WS_in_rule__WSTok__Group__1__Impl13824);
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getWSTokAccess().getWSTerminalRuleCall_1());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__WSTok__Group__1__Impl"
+
+
+	// $ANTLR start "rule__StringTok__Group__0"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6740:1: rule__StringTok__Group__0 : rule__StringTok__Group__0__Impl rule__StringTok__Group__1 ;
+	public final void rule__StringTok__Group__0() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6744:1: ( rule__StringTok__Group__0__Impl rule__StringTok__Group__1 )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6745:2: rule__StringTok__Group__0__Impl rule__StringTok__Group__1
+			{
+				pushFollow(FOLLOW_rule__StringTok__Group__0__Impl_in_rule__StringTok__Group__013857);
+				rule__StringTok__Group__0__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				pushFollow(FOLLOW_rule__StringTok__Group__1_in_rule__StringTok__Group__013860);
+				rule__StringTok__Group__1();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__StringTok__Group__0"
+
+
+	// $ANTLR start "rule__StringTok__Group__0__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6752:1: rule__StringTok__Group__0__Impl : ( () ) ;
+	public final void rule__StringTok__Group__0__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6756:1: ( ( () ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6757:1: ( () )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6757:1: ( () )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6758:1: ()
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getStringTokAccess().getStringTokAction_0());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6759:1: ()
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6761:1:
+					{
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getStringTokAccess().getStringTokAction_0());
+					}
+
+				}
+
+
+			}
+
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__StringTok__Group__0__Impl"
+
+
+	// $ANTLR start "rule__StringTok__Group__1"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6771:1: rule__StringTok__Group__1 : rule__StringTok__Group__1__Impl ;
+	public final void rule__StringTok__Group__1() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6775:1: ( rule__StringTok__Group__1__Impl )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6776:2: rule__StringTok__Group__1__Impl
+			{
+				pushFollow(FOLLOW_rule__StringTok__Group__1__Impl_in_rule__StringTok__Group__113918);
+				rule__StringTok__Group__1__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__StringTok__Group__1"
+
+
+	// $ANTLR start "rule__StringTok__Group__1__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6782:1: rule__StringTok__Group__1__Impl : ( ( rule__StringTok__ValueAssignment_1 ) ) ;
+	public final void rule__StringTok__Group__1__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6786:1: ( ( ( rule__StringTok__ValueAssignment_1 ) ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6787:1: ( ( rule__StringTok__ValueAssignment_1 ) )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6787:1: ( ( rule__StringTok__ValueAssignment_1 ) )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6788:1: ( rule__StringTok__ValueAssignment_1 )
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getStringTokAccess().getValueAssignment_1());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6789:1: ( rule__StringTok__ValueAssignment_1 )
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6789:2: rule__StringTok__ValueAssignment_1
+					{
+						pushFollow(FOLLOW_rule__StringTok__ValueAssignment_1_in_rule__StringTok__Group__1__Impl13945);
+						rule__StringTok__ValueAssignment_1();
+
+						state._fsp--;
+						if (state.failed) {
+							return;
+						}
+
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getStringTokAccess().getValueAssignment_1());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__StringTok__Group__1__Impl"
+
+
+	// $ANTLR start "rule__NumberTok__Group__0"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6803:1: rule__NumberTok__Group__0 : rule__NumberTok__Group__0__Impl rule__NumberTok__Group__1 ;
+	public final void rule__NumberTok__Group__0() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6807:1: ( rule__NumberTok__Group__0__Impl rule__NumberTok__Group__1 )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6808:2: rule__NumberTok__Group__0__Impl rule__NumberTok__Group__1
+			{
+				pushFollow(FOLLOW_rule__NumberTok__Group__0__Impl_in_rule__NumberTok__Group__013979);
+				rule__NumberTok__Group__0__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				pushFollow(FOLLOW_rule__NumberTok__Group__1_in_rule__NumberTok__Group__013982);
+				rule__NumberTok__Group__1();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__NumberTok__Group__0"
+
+
+	// $ANTLR start "rule__NumberTok__Group__0__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6815:1: rule__NumberTok__Group__0__Impl : ( () ) ;
+	public final void rule__NumberTok__Group__0__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6819:1: ( ( () ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6820:1: ( () )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6820:1: ( () )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6821:1: ()
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getNumberTokAccess().getNumberTokAction_0());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6822:1: ()
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6824:1:
+					{
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getNumberTokAccess().getNumberTokAction_0());
+					}
+
+				}
+
+
+			}
+
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__NumberTok__Group__0__Impl"
+
+
+	// $ANTLR start "rule__NumberTok__Group__1"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6834:1: rule__NumberTok__Group__1 : rule__NumberTok__Group__1__Impl ;
+	public final void rule__NumberTok__Group__1() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6838:1: ( rule__NumberTok__Group__1__Impl )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6839:2: rule__NumberTok__Group__1__Impl
+			{
+				pushFollow(FOLLOW_rule__NumberTok__Group__1__Impl_in_rule__NumberTok__Group__114040);
+				rule__NumberTok__Group__1__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__NumberTok__Group__1"
+
+
+	// $ANTLR start "rule__NumberTok__Group__1__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6845:1: rule__NumberTok__Group__1__Impl : ( ( rule__NumberTok__ValAssignment_1 ) ) ;
+	public final void rule__NumberTok__Group__1__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6849:1: ( ( ( rule__NumberTok__ValAssignment_1 ) ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6850:1: ( ( rule__NumberTok__ValAssignment_1 ) )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6850:1: ( ( rule__NumberTok__ValAssignment_1 ) )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6851:1: ( rule__NumberTok__ValAssignment_1 )
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getNumberTokAccess().getValAssignment_1());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6852:1: ( rule__NumberTok__ValAssignment_1 )
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6852:2: rule__NumberTok__ValAssignment_1
+					{
+						pushFollow(FOLLOW_rule__NumberTok__ValAssignment_1_in_rule__NumberTok__Group__1__Impl14067);
+						rule__NumberTok__ValAssignment_1();
+
+						state._fsp--;
+						if (state.failed) {
+							return;
+						}
+
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getNumberTokAccess().getValAssignment_1());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__NumberTok__Group__1__Impl"
+
+
+	// $ANTLR start "rule__UrlTok__Group__0"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6866:1: rule__UrlTok__Group__0 : rule__UrlTok__Group__0__Impl rule__UrlTok__Group__1 ;
+	public final void rule__UrlTok__Group__0() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6870:1: ( rule__UrlTok__Group__0__Impl rule__UrlTok__Group__1 )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6871:2: rule__UrlTok__Group__0__Impl rule__UrlTok__Group__1
+			{
+				pushFollow(FOLLOW_rule__UrlTok__Group__0__Impl_in_rule__UrlTok__Group__014101);
+				rule__UrlTok__Group__0__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				pushFollow(FOLLOW_rule__UrlTok__Group__1_in_rule__UrlTok__Group__014104);
+				rule__UrlTok__Group__1();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__UrlTok__Group__0"
+
+
+	// $ANTLR start "rule__UrlTok__Group__0__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6878:1: rule__UrlTok__Group__0__Impl : ( () ) ;
+	public final void rule__UrlTok__Group__0__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6882:1: ( ( () ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6883:1: ( () )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6883:1: ( () )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6884:1: ()
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getUrlTokAccess().getUrlTokAction_0());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6885:1: ()
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6887:1:
+					{
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getUrlTokAccess().getUrlTokAction_0());
+					}
+
+				}
+
+
+			}
+
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__UrlTok__Group__0__Impl"
+
+
+	// $ANTLR start "rule__UrlTok__Group__1"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6897:1: rule__UrlTok__Group__1 : rule__UrlTok__Group__1__Impl ;
+	public final void rule__UrlTok__Group__1() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6901:1: ( rule__UrlTok__Group__1__Impl )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6902:2: rule__UrlTok__Group__1__Impl
+			{
+				pushFollow(FOLLOW_rule__UrlTok__Group__1__Impl_in_rule__UrlTok__Group__114162);
+				rule__UrlTok__Group__1__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__UrlTok__Group__1"
+
+
+	// $ANTLR start "rule__UrlTok__Group__1__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6908:1: rule__UrlTok__Group__1__Impl : ( ( rule__UrlTok__UrlAssignment_1 ) ) ;
+	public final void rule__UrlTok__Group__1__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6912:1: ( ( ( rule__UrlTok__UrlAssignment_1 ) ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6913:1: ( ( rule__UrlTok__UrlAssignment_1 ) )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6913:1: ( ( rule__UrlTok__UrlAssignment_1 ) )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6914:1: ( rule__UrlTok__UrlAssignment_1 )
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getUrlTokAccess().getUrlAssignment_1());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6915:1: ( rule__UrlTok__UrlAssignment_1 )
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6915:2: rule__UrlTok__UrlAssignment_1
+					{
+						pushFollow(FOLLOW_rule__UrlTok__UrlAssignment_1_in_rule__UrlTok__Group__1__Impl14189);
+						rule__UrlTok__UrlAssignment_1();
+
+						state._fsp--;
+						if (state.failed) {
+							return;
+						}
+
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getUrlTokAccess().getUrlAssignment_1());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__UrlTok__Group__1__Impl"
+
+
+	// $ANTLR start "rule__ColorTok__Group__0"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6929:1: rule__ColorTok__Group__0 : rule__ColorTok__Group__0__Impl rule__ColorTok__Group__1 ;
+	public final void rule__ColorTok__Group__0() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6933:1: ( rule__ColorTok__Group__0__Impl rule__ColorTok__Group__1 )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6934:2: rule__ColorTok__Group__0__Impl rule__ColorTok__Group__1
+			{
+				pushFollow(FOLLOW_rule__ColorTok__Group__0__Impl_in_rule__ColorTok__Group__014223);
+				rule__ColorTok__Group__0__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				pushFollow(FOLLOW_rule__ColorTok__Group__1_in_rule__ColorTok__Group__014226);
+				rule__ColorTok__Group__1();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__ColorTok__Group__0"
+
+
+	// $ANTLR start "rule__ColorTok__Group__0__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6941:1: rule__ColorTok__Group__0__Impl : ( () ) ;
+	public final void rule__ColorTok__Group__0__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6945:1: ( ( () ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6946:1: ( () )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6946:1: ( () )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6947:1: ()
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getColorTokAccess().getColorTokAction_0());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6948:1: ()
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6950:1:
+					{
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getColorTokAccess().getColorTokAction_0());
+					}
+
+				}
+
+
+			}
+
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__ColorTok__Group__0__Impl"
+
+
+	// $ANTLR start "rule__ColorTok__Group__1"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6960:1: rule__ColorTok__Group__1 : rule__ColorTok__Group__1__Impl ;
+	public final void rule__ColorTok__Group__1() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6964:1: ( rule__ColorTok__Group__1__Impl )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6965:2: rule__ColorTok__Group__1__Impl
+			{
+				pushFollow(FOLLOW_rule__ColorTok__Group__1__Impl_in_rule__ColorTok__Group__114284);
+				rule__ColorTok__Group__1__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__ColorTok__Group__1"
+
+
+	// $ANTLR start "rule__ColorTok__Group__1__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6971:1: rule__ColorTok__Group__1__Impl : ( ( rule__ColorTok__ValueAssignment_1 ) ) ;
+	public final void rule__ColorTok__Group__1__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6975:1: ( ( ( rule__ColorTok__ValueAssignment_1 ) ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6976:1: ( ( rule__ColorTok__ValueAssignment_1 ) )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6976:1: ( ( rule__ColorTok__ValueAssignment_1 ) )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6977:1: ( rule__ColorTok__ValueAssignment_1 )
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getColorTokAccess().getValueAssignment_1());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6978:1: ( rule__ColorTok__ValueAssignment_1 )
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6978:2: rule__ColorTok__ValueAssignment_1
+					{
+						pushFollow(FOLLOW_rule__ColorTok__ValueAssignment_1_in_rule__ColorTok__Group__1__Impl14311);
+						rule__ColorTok__ValueAssignment_1();
+
+						state._fsp--;
+						if (state.failed) {
+							return;
+						}
+
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getColorTokAccess().getValueAssignment_1());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__ColorTok__Group__1__Impl"
+
+
+	// $ANTLR start "rule__IdentifierOrFuncTok__Group__0"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6992:1: rule__IdentifierOrFuncTok__Group__0 : rule__IdentifierOrFuncTok__Group__0__Impl
+	// rule__IdentifierOrFuncTok__Group__1 ;
+	public final void rule__IdentifierOrFuncTok__Group__0() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6996:1: ( rule__IdentifierOrFuncTok__Group__0__Impl rule__IdentifierOrFuncTok__Group__1 )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:6997:2: rule__IdentifierOrFuncTok__Group__0__Impl rule__IdentifierOrFuncTok__Group__1
+			{
+				pushFollow(FOLLOW_rule__IdentifierOrFuncTok__Group__0__Impl_in_rule__IdentifierOrFuncTok__Group__014345);
+				rule__IdentifierOrFuncTok__Group__0__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				pushFollow(FOLLOW_rule__IdentifierOrFuncTok__Group__1_in_rule__IdentifierOrFuncTok__Group__014348);
+				rule__IdentifierOrFuncTok__Group__1();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__IdentifierOrFuncTok__Group__0"
+
+
+	// $ANTLR start "rule__IdentifierOrFuncTok__Group__0__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7004:1: rule__IdentifierOrFuncTok__Group__0__Impl : ( () ) ;
+	public final void rule__IdentifierOrFuncTok__Group__0__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7008:1: ( ( () ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7009:1: ( () )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7009:1: ( () )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7010:1: ()
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getIdentifierOrFuncTokAccess().getIdentifierTokAction_0());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7011:1: ()
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7013:1:
+					{
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getIdentifierOrFuncTokAccess().getIdentifierTokAction_0());
+					}
+
+				}
+
+
+			}
+
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__IdentifierOrFuncTok__Group__0__Impl"
+
+
+	// $ANTLR start "rule__IdentifierOrFuncTok__Group__1"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7023:1: rule__IdentifierOrFuncTok__Group__1 : rule__IdentifierOrFuncTok__Group__1__Impl
+	// rule__IdentifierOrFuncTok__Group__2 ;
+	public final void rule__IdentifierOrFuncTok__Group__1() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7027:1: ( rule__IdentifierOrFuncTok__Group__1__Impl rule__IdentifierOrFuncTok__Group__2 )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7028:2: rule__IdentifierOrFuncTok__Group__1__Impl rule__IdentifierOrFuncTok__Group__2
+			{
+				pushFollow(FOLLOW_rule__IdentifierOrFuncTok__Group__1__Impl_in_rule__IdentifierOrFuncTok__Group__114406);
+				rule__IdentifierOrFuncTok__Group__1__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				pushFollow(FOLLOW_rule__IdentifierOrFuncTok__Group__2_in_rule__IdentifierOrFuncTok__Group__114409);
+				rule__IdentifierOrFuncTok__Group__2();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__IdentifierOrFuncTok__Group__1"
+
+
+	// $ANTLR start "rule__IdentifierOrFuncTok__Group__1__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7035:1: rule__IdentifierOrFuncTok__Group__1__Impl : ( ( rule__IdentifierOrFuncTok__NameAssignment_1 ) ) ;
+	public final void rule__IdentifierOrFuncTok__Group__1__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7039:1: ( ( ( rule__IdentifierOrFuncTok__NameAssignment_1 ) ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7040:1: ( ( rule__IdentifierOrFuncTok__NameAssignment_1 ) )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7040:1: ( ( rule__IdentifierOrFuncTok__NameAssignment_1 ) )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7041:1: ( rule__IdentifierOrFuncTok__NameAssignment_1 )
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getIdentifierOrFuncTokAccess().getNameAssignment_1());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7042:1: ( rule__IdentifierOrFuncTok__NameAssignment_1 )
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7042:2: rule__IdentifierOrFuncTok__NameAssignment_1
+					{
+						pushFollow(FOLLOW_rule__IdentifierOrFuncTok__NameAssignment_1_in_rule__IdentifierOrFuncTok__Group__1__Impl14436);
+						rule__IdentifierOrFuncTok__NameAssignment_1();
+
+						state._fsp--;
+						if (state.failed) {
+							return;
+						}
+
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getIdentifierOrFuncTokAccess().getNameAssignment_1());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__IdentifierOrFuncTok__Group__1__Impl"
+
+
+	// $ANTLR start "rule__IdentifierOrFuncTok__Group__2"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7052:1: rule__IdentifierOrFuncTok__Group__2 : rule__IdentifierOrFuncTok__Group__2__Impl ;
+	public final void rule__IdentifierOrFuncTok__Group__2() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7056:1: ( rule__IdentifierOrFuncTok__Group__2__Impl )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7057:2: rule__IdentifierOrFuncTok__Group__2__Impl
+			{
+				pushFollow(FOLLOW_rule__IdentifierOrFuncTok__Group__2__Impl_in_rule__IdentifierOrFuncTok__Group__214466);
+				rule__IdentifierOrFuncTok__Group__2__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__IdentifierOrFuncTok__Group__2"
+
+
+	// $ANTLR start "rule__IdentifierOrFuncTok__Group__2__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7063:1: rule__IdentifierOrFuncTok__Group__2__Impl : ( ( rule__IdentifierOrFuncTok__Group_2__0 )? ) ;
+	public final void rule__IdentifierOrFuncTok__Group__2__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7067:1: ( ( ( rule__IdentifierOrFuncTok__Group_2__0 )? ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7068:1: ( ( rule__IdentifierOrFuncTok__Group_2__0 )? )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7068:1: ( ( rule__IdentifierOrFuncTok__Group_2__0 )? )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7069:1: ( rule__IdentifierOrFuncTok__Group_2__0 )?
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getIdentifierOrFuncTokAccess().getGroup_2());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7070:1: ( rule__IdentifierOrFuncTok__Group_2__0 )?
+					int alt80 = 2;
+					int LA80_0 = input.LA(1);
+
+					if ((LA80_0 == 62)) {
+						alt80 = 1;
+					}
+					switch (alt80) {
+					case 1:
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7070:2: rule__IdentifierOrFuncTok__Group_2__0
+					{
+						pushFollow(FOLLOW_rule__IdentifierOrFuncTok__Group_2__0_in_rule__IdentifierOrFuncTok__Group__2__Impl14493);
+						rule__IdentifierOrFuncTok__Group_2__0();
+
+						state._fsp--;
+						if (state.failed) {
+							return;
+						}
+
+					}
+						break;
+
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getIdentifierOrFuncTokAccess().getGroup_2());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__IdentifierOrFuncTok__Group__2__Impl"
+
+
+	// $ANTLR start "rule__IdentifierOrFuncTok__Group_2__0"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7086:1: rule__IdentifierOrFuncTok__Group_2__0 : rule__IdentifierOrFuncTok__Group_2__0__Impl
+	// rule__IdentifierOrFuncTok__Group_2__1 ;
+	public final void rule__IdentifierOrFuncTok__Group_2__0() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7090:1: ( rule__IdentifierOrFuncTok__Group_2__0__Impl rule__IdentifierOrFuncTok__Group_2__1 )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7091:2: rule__IdentifierOrFuncTok__Group_2__0__Impl rule__IdentifierOrFuncTok__Group_2__1
+			{
+				pushFollow(FOLLOW_rule__IdentifierOrFuncTok__Group_2__0__Impl_in_rule__IdentifierOrFuncTok__Group_2__014530);
+				rule__IdentifierOrFuncTok__Group_2__0__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				pushFollow(FOLLOW_rule__IdentifierOrFuncTok__Group_2__1_in_rule__IdentifierOrFuncTok__Group_2__014533);
+				rule__IdentifierOrFuncTok__Group_2__1();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__IdentifierOrFuncTok__Group_2__0"
+
+
+	// $ANTLR start "rule__IdentifierOrFuncTok__Group_2__0__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7098:1: rule__IdentifierOrFuncTok__Group_2__0__Impl : ( () ) ;
+	public final void rule__IdentifierOrFuncTok__Group_2__0__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7102:1: ( ( () ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7103:1: ( () )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7103:1: ( () )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7104:1: ()
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getIdentifierOrFuncTokAccess().getFuncTokNameAction_2_0());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7105:1: ()
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7107:1:
+					{
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getIdentifierOrFuncTokAccess().getFuncTokNameAction_2_0());
+					}
+
+				}
+
+
+			}
+
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__IdentifierOrFuncTok__Group_2__0__Impl"
+
+
+	// $ANTLR start "rule__IdentifierOrFuncTok__Group_2__1"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7117:1: rule__IdentifierOrFuncTok__Group_2__1 : rule__IdentifierOrFuncTok__Group_2__1__Impl
+	// rule__IdentifierOrFuncTok__Group_2__2 ;
+	public final void rule__IdentifierOrFuncTok__Group_2__1() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7121:1: ( rule__IdentifierOrFuncTok__Group_2__1__Impl rule__IdentifierOrFuncTok__Group_2__2 )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7122:2: rule__IdentifierOrFuncTok__Group_2__1__Impl rule__IdentifierOrFuncTok__Group_2__2
+			{
+				pushFollow(FOLLOW_rule__IdentifierOrFuncTok__Group_2__1__Impl_in_rule__IdentifierOrFuncTok__Group_2__114591);
+				rule__IdentifierOrFuncTok__Group_2__1__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				pushFollow(FOLLOW_rule__IdentifierOrFuncTok__Group_2__2_in_rule__IdentifierOrFuncTok__Group_2__114594);
+				rule__IdentifierOrFuncTok__Group_2__2();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__IdentifierOrFuncTok__Group_2__1"
+
+
+	// $ANTLR start "rule__IdentifierOrFuncTok__Group_2__1__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7129:1: rule__IdentifierOrFuncTok__Group_2__1__Impl : ( '(' ) ;
+	public final void rule__IdentifierOrFuncTok__Group_2__1__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7133:1: ( ( '(' ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7134:1: ( '(' )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7134:1: ( '(' )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7135:1: '('
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getIdentifierOrFuncTokAccess().getLeftParenthesisKeyword_2_1());
+					}
+					match(input, 62, FOLLOW_62_in_rule__IdentifierOrFuncTok__Group_2__1__Impl14622);
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getIdentifierOrFuncTokAccess().getLeftParenthesisKeyword_2_1());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__IdentifierOrFuncTok__Group_2__1__Impl"
+
+
+	// $ANTLR start "rule__IdentifierOrFuncTok__Group_2__2"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7148:1: rule__IdentifierOrFuncTok__Group_2__2 : rule__IdentifierOrFuncTok__Group_2__2__Impl
+	// rule__IdentifierOrFuncTok__Group_2__3 ;
+	public final void rule__IdentifierOrFuncTok__Group_2__2() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7152:1: ( rule__IdentifierOrFuncTok__Group_2__2__Impl rule__IdentifierOrFuncTok__Group_2__3 )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7153:2: rule__IdentifierOrFuncTok__Group_2__2__Impl rule__IdentifierOrFuncTok__Group_2__3
+			{
+				pushFollow(FOLLOW_rule__IdentifierOrFuncTok__Group_2__2__Impl_in_rule__IdentifierOrFuncTok__Group_2__214653);
+				rule__IdentifierOrFuncTok__Group_2__2__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				pushFollow(FOLLOW_rule__IdentifierOrFuncTok__Group_2__3_in_rule__IdentifierOrFuncTok__Group_2__214656);
+				rule__IdentifierOrFuncTok__Group_2__3();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__IdentifierOrFuncTok__Group_2__2"
+
+
+	// $ANTLR start "rule__IdentifierOrFuncTok__Group_2__2__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7160:1: rule__IdentifierOrFuncTok__Group_2__2__Impl : ( ( ( rule__IdentifierOrFuncTok__ParamsAssignment_2_2 )
+	// ) ( ( rule__IdentifierOrFuncTok__ParamsAssignment_2_2 )* ) ) ;
+	public final void rule__IdentifierOrFuncTok__Group_2__2__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7164:1: ( ( ( ( rule__IdentifierOrFuncTok__ParamsAssignment_2_2 ) ) ( (
+			// rule__IdentifierOrFuncTok__ParamsAssignment_2_2 )* ) ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7165:1: ( ( ( rule__IdentifierOrFuncTok__ParamsAssignment_2_2 ) ) ( (
+			// rule__IdentifierOrFuncTok__ParamsAssignment_2_2 )* ) )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7165:1: ( ( ( rule__IdentifierOrFuncTok__ParamsAssignment_2_2 ) ) ( (
+				// rule__IdentifierOrFuncTok__ParamsAssignment_2_2 )* ) )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7166:1: ( ( rule__IdentifierOrFuncTok__ParamsAssignment_2_2 ) ) ( (
+				// rule__IdentifierOrFuncTok__ParamsAssignment_2_2 )* )
+				{
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7166:1: ( ( rule__IdentifierOrFuncTok__ParamsAssignment_2_2 ) )
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7167:1: ( rule__IdentifierOrFuncTok__ParamsAssignment_2_2 )
+					{
+						if (state.backtracking == 0) {
+							before(grammarAccess.getIdentifierOrFuncTokAccess().getParamsAssignment_2_2());
+						}
+						// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7168:1: ( rule__IdentifierOrFuncTok__ParamsAssignment_2_2 )
+						// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7168:2: rule__IdentifierOrFuncTok__ParamsAssignment_2_2
+						{
+							pushFollow(FOLLOW_rule__IdentifierOrFuncTok__ParamsAssignment_2_2_in_rule__IdentifierOrFuncTok__Group_2__2__Impl14685);
+							rule__IdentifierOrFuncTok__ParamsAssignment_2_2();
+
+							state._fsp--;
+							if (state.failed) {
+								return;
+							}
+
+						}
+
+						if (state.backtracking == 0) {
+							after(grammarAccess.getIdentifierOrFuncTokAccess().getParamsAssignment_2_2());
+						}
+
+					}
+
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7171:1: ( ( rule__IdentifierOrFuncTok__ParamsAssignment_2_2 )* )
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7172:1: ( rule__IdentifierOrFuncTok__ParamsAssignment_2_2 )*
+					{
+						if (state.backtracking == 0) {
+							before(grammarAccess.getIdentifierOrFuncTokAccess().getParamsAssignment_2_2());
+						}
+						// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7173:1: ( rule__IdentifierOrFuncTok__ParamsAssignment_2_2 )*
+						loop81: do {
+							int alt81 = 2;
+							int LA81_0 = input.LA(1);
+
+							if (((LA81_0 >= RULE_CSSSTRING && LA81_0 <= RULE_UNDERSCORE) || (LA81_0 >= RULE_HASHMARK && LA81_0 <= RULE_WS) || LA81_0 == 39 || (LA81_0 >= 49 && LA81_0 <= 52) || LA81_0 == 64)) {
+								alt81 = 1;
+							}
+
+
+							switch (alt81) {
+							case 1:
+							// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7173:2: rule__IdentifierOrFuncTok__ParamsAssignment_2_2
+							{
+								pushFollow(FOLLOW_rule__IdentifierOrFuncTok__ParamsAssignment_2_2_in_rule__IdentifierOrFuncTok__Group_2__2__Impl14697);
+								rule__IdentifierOrFuncTok__ParamsAssignment_2_2();
+
+								state._fsp--;
+								if (state.failed) {
+									return;
+								}
+
+							}
+								break;
+
+							default:
+								break loop81;
+							}
+						} while (true);
+
+						if (state.backtracking == 0) {
+							after(grammarAccess.getIdentifierOrFuncTokAccess().getParamsAssignment_2_2());
+						}
+
+					}
+
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__IdentifierOrFuncTok__Group_2__2__Impl"
+
+
+	// $ANTLR start "rule__IdentifierOrFuncTok__Group_2__3"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7184:1: rule__IdentifierOrFuncTok__Group_2__3 : rule__IdentifierOrFuncTok__Group_2__3__Impl ;
+	public final void rule__IdentifierOrFuncTok__Group_2__3() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7188:1: ( rule__IdentifierOrFuncTok__Group_2__3__Impl )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7189:2: rule__IdentifierOrFuncTok__Group_2__3__Impl
+			{
+				pushFollow(FOLLOW_rule__IdentifierOrFuncTok__Group_2__3__Impl_in_rule__IdentifierOrFuncTok__Group_2__314730);
+				rule__IdentifierOrFuncTok__Group_2__3__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__IdentifierOrFuncTok__Group_2__3"
+
+
+	// $ANTLR start "rule__IdentifierOrFuncTok__Group_2__3__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7195:1: rule__IdentifierOrFuncTok__Group_2__3__Impl : ( ')' ) ;
+	public final void rule__IdentifierOrFuncTok__Group_2__3__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7199:1: ( ( ')' ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7200:1: ( ')' )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7200:1: ( ')' )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7201:1: ')'
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getIdentifierOrFuncTokAccess().getRightParenthesisKeyword_2_3());
+					}
+					match(input, 61, FOLLOW_61_in_rule__IdentifierOrFuncTok__Group_2__3__Impl14758);
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getIdentifierOrFuncTokAccess().getRightParenthesisKeyword_2_3());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__IdentifierOrFuncTok__Group_2__3__Impl"
+
+
+	// $ANTLR start "rule__URLType__Group__0"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7222:1: rule__URLType__Group__0 : rule__URLType__Group__0__Impl rule__URLType__Group__1 ;
+	public final void rule__URLType__Group__0() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7226:1: ( rule__URLType__Group__0__Impl rule__URLType__Group__1 )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7227:2: rule__URLType__Group__0__Impl rule__URLType__Group__1
+			{
+				pushFollow(FOLLOW_rule__URLType__Group__0__Impl_in_rule__URLType__Group__014797);
+				rule__URLType__Group__0__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				pushFollow(FOLLOW_rule__URLType__Group__1_in_rule__URLType__Group__014800);
+				rule__URLType__Group__1();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__URLType__Group__0"
+
+
+	// $ANTLR start "rule__URLType__Group__0__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7234:1: rule__URLType__Group__0__Impl : ( 'url(' ) ;
+	public final void rule__URLType__Group__0__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7238:1: ( ( 'url(' ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7239:1: ( 'url(' )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7239:1: ( 'url(' )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7240:1: 'url('
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getURLTypeAccess().getUrlKeyword_0());
+					}
+					match(input, 64, FOLLOW_64_in_rule__URLType__Group__0__Impl14828);
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getURLTypeAccess().getUrlKeyword_0());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__URLType__Group__0__Impl"
+
+
+	// $ANTLR start "rule__URLType__Group__1"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7253:1: rule__URLType__Group__1 : rule__URLType__Group__1__Impl rule__URLType__Group__2 ;
+	public final void rule__URLType__Group__1() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7257:1: ( rule__URLType__Group__1__Impl rule__URLType__Group__2 )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7258:2: rule__URLType__Group__1__Impl rule__URLType__Group__2
+			{
+				pushFollow(FOLLOW_rule__URLType__Group__1__Impl_in_rule__URLType__Group__114859);
+				rule__URLType__Group__1__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				pushFollow(FOLLOW_rule__URLType__Group__2_in_rule__URLType__Group__114862);
+				rule__URLType__Group__2();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__URLType__Group__1"
+
+
+	// $ANTLR start "rule__URLType__Group__1__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7265:1: rule__URLType__Group__1__Impl : ( ( rule__URLType__UrlAssignment_1 ) ) ;
+	public final void rule__URLType__Group__1__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7269:1: ( ( ( rule__URLType__UrlAssignment_1 ) ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7270:1: ( ( rule__URLType__UrlAssignment_1 ) )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7270:1: ( ( rule__URLType__UrlAssignment_1 ) )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7271:1: ( rule__URLType__UrlAssignment_1 )
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getURLTypeAccess().getUrlAssignment_1());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7272:1: ( rule__URLType__UrlAssignment_1 )
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7272:2: rule__URLType__UrlAssignment_1
+					{
+						pushFollow(FOLLOW_rule__URLType__UrlAssignment_1_in_rule__URLType__Group__1__Impl14889);
+						rule__URLType__UrlAssignment_1();
+
+						state._fsp--;
+						if (state.failed) {
+							return;
+						}
+
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getURLTypeAccess().getUrlAssignment_1());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__URLType__Group__1__Impl"
+
+
+	// $ANTLR start "rule__URLType__Group__2"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7282:1: rule__URLType__Group__2 : rule__URLType__Group__2__Impl ;
+	public final void rule__URLType__Group__2() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7286:1: ( rule__URLType__Group__2__Impl )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7287:2: rule__URLType__Group__2__Impl
+			{
+				pushFollow(FOLLOW_rule__URLType__Group__2__Impl_in_rule__URLType__Group__214919);
+				rule__URLType__Group__2__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__URLType__Group__2"
+
+
+	// $ANTLR start "rule__URLType__Group__2__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7293:1: rule__URLType__Group__2__Impl : ( ')' ) ;
+	public final void rule__URLType__Group__2__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7297:1: ( ( ')' ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7298:1: ( ')' )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7298:1: ( ')' )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7299:1: ')'
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getURLTypeAccess().getRightParenthesisKeyword_2());
+					}
+					match(input, 61, FOLLOW_61_in_rule__URLType__Group__2__Impl14947);
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getURLTypeAccess().getRightParenthesisKeyword_2());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__URLType__Group__2__Impl"
+
+
+	// $ANTLR start "rule__ValidURLSymbol__Group_18__0"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7318:1: rule__ValidURLSymbol__Group_18__0 : rule__ValidURLSymbol__Group_18__0__Impl
+	// rule__ValidURLSymbol__Group_18__1 ;
+	public final void rule__ValidURLSymbol__Group_18__0() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7322:1: ( rule__ValidURLSymbol__Group_18__0__Impl rule__ValidURLSymbol__Group_18__1 )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7323:2: rule__ValidURLSymbol__Group_18__0__Impl rule__ValidURLSymbol__Group_18__1
+			{
+				pushFollow(FOLLOW_rule__ValidURLSymbol__Group_18__0__Impl_in_rule__ValidURLSymbol__Group_18__014984);
+				rule__ValidURLSymbol__Group_18__0__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				pushFollow(FOLLOW_rule__ValidURLSymbol__Group_18__1_in_rule__ValidURLSymbol__Group_18__014987);
+				rule__ValidURLSymbol__Group_18__1();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__ValidURLSymbol__Group_18__0"
+
+
+	// $ANTLR start "rule__ValidURLSymbol__Group_18__0__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7330:1: rule__ValidURLSymbol__Group_18__0__Impl : ( '=' ) ;
+	public final void rule__ValidURLSymbol__Group_18__0__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7334:1: ( ( '=' ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7335:1: ( '=' )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7335:1: ( '=' )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7336:1: '='
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getValidURLSymbolAccess().getEqualsSignKeyword_18_0());
+					}
+					match(input, 35, FOLLOW_35_in_rule__ValidURLSymbol__Group_18__0__Impl15015);
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getValidURLSymbolAccess().getEqualsSignKeyword_18_0());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__ValidURLSymbol__Group_18__0__Impl"
+
+
+	// $ANTLR start "rule__ValidURLSymbol__Group_18__1"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7349:1: rule__ValidURLSymbol__Group_18__1 : rule__ValidURLSymbol__Group_18__1__Impl ;
+	public final void rule__ValidURLSymbol__Group_18__1() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7353:1: ( rule__ValidURLSymbol__Group_18__1__Impl )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7354:2: rule__ValidURLSymbol__Group_18__1__Impl
+			{
+				pushFollow(FOLLOW_rule__ValidURLSymbol__Group_18__1__Impl_in_rule__ValidURLSymbol__Group_18__115046);
+				rule__ValidURLSymbol__Group_18__1__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__ValidURLSymbol__Group_18__1"
+
+
+	// $ANTLR start "rule__ValidURLSymbol__Group_18__1__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7360:1: rule__ValidURLSymbol__Group_18__1__Impl : ( ruleKeywordHack ) ;
+	public final void rule__ValidURLSymbol__Group_18__1__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7364:1: ( ( ruleKeywordHack ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7365:1: ( ruleKeywordHack )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7365:1: ( ruleKeywordHack )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7366:1: ruleKeywordHack
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getValidURLSymbolAccess().getKeywordHackParserRuleCall_18_1());
+					}
+					pushFollow(FOLLOW_ruleKeywordHack_in_rule__ValidURLSymbol__Group_18__1__Impl15073);
+					ruleKeywordHack();
+
+					state._fsp--;
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getValidURLSymbolAccess().getKeywordHackParserRuleCall_18_1());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__ValidURLSymbol__Group_18__1__Impl"
+
+
+	// $ANTLR start "rule__ValidURL__Group_1_10__0"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7381:1: rule__ValidURL__Group_1_10__0 : rule__ValidURL__Group_1_10__0__Impl rule__ValidURL__Group_1_10__1 ;
+	public final void rule__ValidURL__Group_1_10__0() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7385:1: ( rule__ValidURL__Group_1_10__0__Impl rule__ValidURL__Group_1_10__1 )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7386:2: rule__ValidURL__Group_1_10__0__Impl rule__ValidURL__Group_1_10__1
+			{
+				pushFollow(FOLLOW_rule__ValidURL__Group_1_10__0__Impl_in_rule__ValidURL__Group_1_10__015106);
+				rule__ValidURL__Group_1_10__0__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				pushFollow(FOLLOW_rule__ValidURL__Group_1_10__1_in_rule__ValidURL__Group_1_10__015109);
+				rule__ValidURL__Group_1_10__1();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__ValidURL__Group_1_10__0"
+
+
+	// $ANTLR start "rule__ValidURL__Group_1_10__0__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7393:1: rule__ValidURL__Group_1_10__0__Impl : ( RULE_PERCENT ) ;
+	public final void rule__ValidURL__Group_1_10__0__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7397:1: ( ( RULE_PERCENT ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7398:1: ( RULE_PERCENT )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7398:1: ( RULE_PERCENT )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7399:1: RULE_PERCENT
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getValidURLAccess().getPERCENTTerminalRuleCall_1_10_0());
+					}
+					match(input, RULE_PERCENT, FOLLOW_RULE_PERCENT_in_rule__ValidURL__Group_1_10__0__Impl15136);
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getValidURLAccess().getPERCENTTerminalRuleCall_1_10_0());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__ValidURL__Group_1_10__0__Impl"
+
+
+	// $ANTLR start "rule__ValidURL__Group_1_10__1"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7410:1: rule__ValidURL__Group_1_10__1 : rule__ValidURL__Group_1_10__1__Impl rule__ValidURL__Group_1_10__2 ;
+	public final void rule__ValidURL__Group_1_10__1() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7414:1: ( rule__ValidURL__Group_1_10__1__Impl rule__ValidURL__Group_1_10__2 )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7415:2: rule__ValidURL__Group_1_10__1__Impl rule__ValidURL__Group_1_10__2
+			{
+				pushFollow(FOLLOW_rule__ValidURL__Group_1_10__1__Impl_in_rule__ValidURL__Group_1_10__115165);
+				rule__ValidURL__Group_1_10__1__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				pushFollow(FOLLOW_rule__ValidURL__Group_1_10__2_in_rule__ValidURL__Group_1_10__115168);
+				rule__ValidURL__Group_1_10__2();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__ValidURL__Group_1_10__1"
+
+
+	// $ANTLR start "rule__ValidURL__Group_1_10__1__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7422:1: rule__ValidURL__Group_1_10__1__Impl : ( ( rule__ValidURL__Alternatives_1_10_1 ) ) ;
+	public final void rule__ValidURL__Group_1_10__1__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7426:1: ( ( ( rule__ValidURL__Alternatives_1_10_1 ) ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7427:1: ( ( rule__ValidURL__Alternatives_1_10_1 ) )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7427:1: ( ( rule__ValidURL__Alternatives_1_10_1 ) )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7428:1: ( rule__ValidURL__Alternatives_1_10_1 )
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getValidURLAccess().getAlternatives_1_10_1());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7429:1: ( rule__ValidURL__Alternatives_1_10_1 )
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7429:2: rule__ValidURL__Alternatives_1_10_1
+					{
+						pushFollow(FOLLOW_rule__ValidURL__Alternatives_1_10_1_in_rule__ValidURL__Group_1_10__1__Impl15195);
+						rule__ValidURL__Alternatives_1_10_1();
+
+						state._fsp--;
+						if (state.failed) {
+							return;
+						}
+
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getValidURLAccess().getAlternatives_1_10_1());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__ValidURL__Group_1_10__1__Impl"
+
+
+	// $ANTLR start "rule__ValidURL__Group_1_10__2"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7439:1: rule__ValidURL__Group_1_10__2 : rule__ValidURL__Group_1_10__2__Impl ;
+	public final void rule__ValidURL__Group_1_10__2() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7443:1: ( rule__ValidURL__Group_1_10__2__Impl )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7444:2: rule__ValidURL__Group_1_10__2__Impl
+			{
+				pushFollow(FOLLOW_rule__ValidURL__Group_1_10__2__Impl_in_rule__ValidURL__Group_1_10__215225);
+				rule__ValidURL__Group_1_10__2__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__ValidURL__Group_1_10__2"
+
+
+	// $ANTLR start "rule__ValidURL__Group_1_10__2__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7450:1: rule__ValidURL__Group_1_10__2__Impl : ( ( rule__ValidURL__Alternatives_1_10_2 ) ) ;
+	public final void rule__ValidURL__Group_1_10__2__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7454:1: ( ( ( rule__ValidURL__Alternatives_1_10_2 ) ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7455:1: ( ( rule__ValidURL__Alternatives_1_10_2 ) )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7455:1: ( ( rule__ValidURL__Alternatives_1_10_2 ) )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7456:1: ( rule__ValidURL__Alternatives_1_10_2 )
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getValidURLAccess().getAlternatives_1_10_2());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7457:1: ( rule__ValidURL__Alternatives_1_10_2 )
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7457:2: rule__ValidURL__Alternatives_1_10_2
+					{
+						pushFollow(FOLLOW_rule__ValidURL__Alternatives_1_10_2_in_rule__ValidURL__Group_1_10__2__Impl15252);
+						rule__ValidURL__Alternatives_1_10_2();
+
+						state._fsp--;
+						if (state.failed) {
+							return;
+						}
+
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getValidURLAccess().getAlternatives_1_10_2());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__ValidURL__Group_1_10__2__Impl"
+
+
+	// $ANTLR start "rule__Identifier__Group__0"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7473:1: rule__Identifier__Group__0 : rule__Identifier__Group__0__Impl rule__Identifier__Group__1 ;
+	public final void rule__Identifier__Group__0() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7477:1: ( rule__Identifier__Group__0__Impl rule__Identifier__Group__1 )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7478:2: rule__Identifier__Group__0__Impl rule__Identifier__Group__1
+			{
+				pushFollow(FOLLOW_rule__Identifier__Group__0__Impl_in_rule__Identifier__Group__015288);
+				rule__Identifier__Group__0__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				pushFollow(FOLLOW_rule__Identifier__Group__1_in_rule__Identifier__Group__015291);
+				rule__Identifier__Group__1();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Identifier__Group__0"
+
+
+	// $ANTLR start "rule__Identifier__Group__0__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7485:1: rule__Identifier__Group__0__Impl : ( ( RULE_DASH )? ) ;
+	public final void rule__Identifier__Group__0__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7489:1: ( ( ( RULE_DASH )? ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7490:1: ( ( RULE_DASH )? )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7490:1: ( ( RULE_DASH )? )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7491:1: ( RULE_DASH )?
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getIdentifierAccess().getDASHTerminalRuleCall_0());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7492:1: ( RULE_DASH )?
+					int alt82 = 2;
+					int LA82_0 = input.LA(1);
+
+					if ((LA82_0 == RULE_DASH)) {
+						alt82 = 1;
+					}
+					switch (alt82) {
+					case 1:
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7492:3: RULE_DASH
+					{
+						match(input, RULE_DASH, FOLLOW_RULE_DASH_in_rule__Identifier__Group__0__Impl15319);
+						if (state.failed) {
+							return;
+						}
+
+					}
+						break;
+
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getIdentifierAccess().getDASHTerminalRuleCall_0());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Identifier__Group__0__Impl"
+
+
+	// $ANTLR start "rule__Identifier__Group__1"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7502:1: rule__Identifier__Group__1 : rule__Identifier__Group__1__Impl rule__Identifier__Group__2 ;
+	public final void rule__Identifier__Group__1() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7506:1: ( rule__Identifier__Group__1__Impl rule__Identifier__Group__2 )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7507:2: rule__Identifier__Group__1__Impl rule__Identifier__Group__2
+			{
+				pushFollow(FOLLOW_rule__Identifier__Group__1__Impl_in_rule__Identifier__Group__115350);
+				rule__Identifier__Group__1__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				pushFollow(FOLLOW_rule__Identifier__Group__2_in_rule__Identifier__Group__115353);
+				rule__Identifier__Group__2();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Identifier__Group__1"
+
+
+	// $ANTLR start "rule__Identifier__Group__1__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7514:1: rule__Identifier__Group__1__Impl : ( ( rule__Identifier__Alternatives_1 ) ) ;
+	public final void rule__Identifier__Group__1__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7518:1: ( ( ( rule__Identifier__Alternatives_1 ) ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7519:1: ( ( rule__Identifier__Alternatives_1 ) )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7519:1: ( ( rule__Identifier__Alternatives_1 ) )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7520:1: ( rule__Identifier__Alternatives_1 )
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getIdentifierAccess().getAlternatives_1());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7521:1: ( rule__Identifier__Alternatives_1 )
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7521:2: rule__Identifier__Alternatives_1
+					{
+						pushFollow(FOLLOW_rule__Identifier__Alternatives_1_in_rule__Identifier__Group__1__Impl15380);
+						rule__Identifier__Alternatives_1();
+
+						state._fsp--;
+						if (state.failed) {
+							return;
+						}
+
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getIdentifierAccess().getAlternatives_1());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Identifier__Group__1__Impl"
+
+
+	// $ANTLR start "rule__Identifier__Group__2"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7531:1: rule__Identifier__Group__2 : rule__Identifier__Group__2__Impl ;
+	public final void rule__Identifier__Group__2() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7535:1: ( rule__Identifier__Group__2__Impl )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7536:2: rule__Identifier__Group__2__Impl
+			{
+				pushFollow(FOLLOW_rule__Identifier__Group__2__Impl_in_rule__Identifier__Group__215410);
+				rule__Identifier__Group__2__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Identifier__Group__2"
+
+
+	// $ANTLR start "rule__Identifier__Group__2__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7542:1: rule__Identifier__Group__2__Impl : ( ( rule__Identifier__Group_2__0 )* ) ;
+	public final void rule__Identifier__Group__2__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7546:1: ( ( ( rule__Identifier__Group_2__0 )* ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7547:1: ( ( rule__Identifier__Group_2__0 )* )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7547:1: ( ( rule__Identifier__Group_2__0 )* )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7548:1: ( rule__Identifier__Group_2__0 )*
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getIdentifierAccess().getGroup_2());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7549:1: ( rule__Identifier__Group_2__0 )*
+					loop83: do {
+						int alt83 = 2;
+						alt83 = dfa83.predict(input);
+						switch (alt83) {
+						case 1:
+						// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7549:2: rule__Identifier__Group_2__0
+						{
+							pushFollow(FOLLOW_rule__Identifier__Group_2__0_in_rule__Identifier__Group__2__Impl15437);
+							rule__Identifier__Group_2__0();
+
+							state._fsp--;
+							if (state.failed) {
+								return;
+							}
+
+						}
+							break;
+
+						default:
+							break loop83;
+						}
+					} while (true);
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getIdentifierAccess().getGroup_2());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Identifier__Group__2__Impl"
+
+
+	// $ANTLR start "rule__Identifier__Group_2__0"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7565:1: rule__Identifier__Group_2__0 : rule__Identifier__Group_2__0__Impl ;
+	public final void rule__Identifier__Group_2__0() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7569:1: ( rule__Identifier__Group_2__0__Impl )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7570:2: rule__Identifier__Group_2__0__Impl
+			{
+				pushFollow(FOLLOW_rule__Identifier__Group_2__0__Impl_in_rule__Identifier__Group_2__015474);
+				rule__Identifier__Group_2__0__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Identifier__Group_2__0"
+
+
+	// $ANTLR start "rule__Identifier__Group_2__0__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7576:1: rule__Identifier__Group_2__0__Impl : ( ( rule__Identifier__Alternatives_2_0 ) ) ;
+	public final void rule__Identifier__Group_2__0__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7580:1: ( ( ( rule__Identifier__Alternatives_2_0 ) ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7581:1: ( ( rule__Identifier__Alternatives_2_0 ) )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7581:1: ( ( rule__Identifier__Alternatives_2_0 ) )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7582:1: ( rule__Identifier__Alternatives_2_0 )
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getIdentifierAccess().getAlternatives_2_0());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7583:1: ( rule__Identifier__Alternatives_2_0 )
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7583:2: rule__Identifier__Alternatives_2_0
+					{
+						pushFollow(FOLLOW_rule__Identifier__Alternatives_2_0_in_rule__Identifier__Group_2__0__Impl15501);
+						rule__Identifier__Alternatives_2_0();
+
+						state._fsp--;
+						if (state.failed) {
+							return;
+						}
+
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getIdentifierAccess().getAlternatives_2_0());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Identifier__Group_2__0__Impl"
+
+
+	// $ANTLR start "rule__Num__Group__0"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7595:1: rule__Num__Group__0 : rule__Num__Group__0__Impl rule__Num__Group__1 ;
+	public final void rule__Num__Group__0() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7599:1: ( rule__Num__Group__0__Impl rule__Num__Group__1 )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7600:2: rule__Num__Group__0__Impl rule__Num__Group__1
+			{
+				pushFollow(FOLLOW_rule__Num__Group__0__Impl_in_rule__Num__Group__015533);
+				rule__Num__Group__0__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				pushFollow(FOLLOW_rule__Num__Group__1_in_rule__Num__Group__015536);
+				rule__Num__Group__1();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Num__Group__0"
+
+
+	// $ANTLR start "rule__Num__Group__0__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7607:1: rule__Num__Group__0__Impl : ( ( rule__Num__Alternatives_0 )? ) ;
+	public final void rule__Num__Group__0__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7611:1: ( ( ( rule__Num__Alternatives_0 )? ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7612:1: ( ( rule__Num__Alternatives_0 )? )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7612:1: ( ( rule__Num__Alternatives_0 )? )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7613:1: ( rule__Num__Alternatives_0 )?
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getNumAccess().getAlternatives_0());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7614:1: ( rule__Num__Alternatives_0 )?
+					int alt84 = 2;
+					int LA84_0 = input.LA(1);
+
+					if ((LA84_0 == RULE_PLUS || LA84_0 == RULE_DASH)) {
+						alt84 = 1;
+					}
+					switch (alt84) {
+					case 1:
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7614:2: rule__Num__Alternatives_0
+					{
+						pushFollow(FOLLOW_rule__Num__Alternatives_0_in_rule__Num__Group__0__Impl15563);
+						rule__Num__Alternatives_0();
+
+						state._fsp--;
+						if (state.failed) {
+							return;
+						}
+
+					}
+						break;
+
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getNumAccess().getAlternatives_0());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Num__Group__0__Impl"
+
+
+	// $ANTLR start "rule__Num__Group__1"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7624:1: rule__Num__Group__1 : rule__Num__Group__1__Impl ;
+	public final void rule__Num__Group__1() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7628:1: ( rule__Num__Group__1__Impl )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7629:2: rule__Num__Group__1__Impl
+			{
+				pushFollow(FOLLOW_rule__Num__Group__1__Impl_in_rule__Num__Group__115594);
+				rule__Num__Group__1__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Num__Group__1"
+
+
+	// $ANTLR start "rule__Num__Group__1__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7635:1: rule__Num__Group__1__Impl : ( ( rule__Num__Alternatives_1 ) ) ;
+	public final void rule__Num__Group__1__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7639:1: ( ( ( rule__Num__Alternatives_1 ) ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7640:1: ( ( rule__Num__Alternatives_1 ) )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7640:1: ( ( rule__Num__Alternatives_1 ) )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7641:1: ( rule__Num__Alternatives_1 )
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getNumAccess().getAlternatives_1());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7642:1: ( rule__Num__Alternatives_1 )
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7642:2: rule__Num__Alternatives_1
+					{
+						pushFollow(FOLLOW_rule__Num__Alternatives_1_in_rule__Num__Group__1__Impl15621);
+						rule__Num__Alternatives_1();
+
+						state._fsp--;
+						if (state.failed) {
+							return;
+						}
+
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getNumAccess().getAlternatives_1());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Num__Group__1__Impl"
+
+
+	// $ANTLR start "rule__Num__Group_1_0__0"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7656:1: rule__Num__Group_1_0__0 : rule__Num__Group_1_0__0__Impl rule__Num__Group_1_0__1 ;
+	public final void rule__Num__Group_1_0__0() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7660:1: ( rule__Num__Group_1_0__0__Impl rule__Num__Group_1_0__1 )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7661:2: rule__Num__Group_1_0__0__Impl rule__Num__Group_1_0__1
+			{
+				pushFollow(FOLLOW_rule__Num__Group_1_0__0__Impl_in_rule__Num__Group_1_0__015655);
+				rule__Num__Group_1_0__0__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				pushFollow(FOLLOW_rule__Num__Group_1_0__1_in_rule__Num__Group_1_0__015658);
+				rule__Num__Group_1_0__1();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Num__Group_1_0__0"
+
+
+	// $ANTLR start "rule__Num__Group_1_0__0__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7668:1: rule__Num__Group_1_0__0__Impl : ( '.' ) ;
+	public final void rule__Num__Group_1_0__0__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7672:1: ( ( '.' ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7673:1: ( '.' )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7673:1: ( '.' )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7674:1: '.'
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getNumAccess().getFullStopKeyword_1_0_0());
+					}
+					match(input, 39, FOLLOW_39_in_rule__Num__Group_1_0__0__Impl15686);
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getNumAccess().getFullStopKeyword_1_0_0());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Num__Group_1_0__0__Impl"
+
+
+	// $ANTLR start "rule__Num__Group_1_0__1"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7687:1: rule__Num__Group_1_0__1 : rule__Num__Group_1_0__1__Impl ;
+	public final void rule__Num__Group_1_0__1() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7691:1: ( rule__Num__Group_1_0__1__Impl )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7692:2: rule__Num__Group_1_0__1__Impl
+			{
+				pushFollow(FOLLOW_rule__Num__Group_1_0__1__Impl_in_rule__Num__Group_1_0__115717);
+				rule__Num__Group_1_0__1__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Num__Group_1_0__1"
+
+
+	// $ANTLR start "rule__Num__Group_1_0__1__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7698:1: rule__Num__Group_1_0__1__Impl : ( ( ( RULE_ONE_INT ) ) ( ( RULE_ONE_INT )* ) ) ;
+	public final void rule__Num__Group_1_0__1__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7702:1: ( ( ( ( RULE_ONE_INT ) ) ( ( RULE_ONE_INT )* ) ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7703:1: ( ( ( RULE_ONE_INT ) ) ( ( RULE_ONE_INT )* ) )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7703:1: ( ( ( RULE_ONE_INT ) ) ( ( RULE_ONE_INT )* ) )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7704:1: ( ( RULE_ONE_INT ) ) ( ( RULE_ONE_INT )* )
+				{
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7704:1: ( ( RULE_ONE_INT ) )
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7705:1: ( RULE_ONE_INT )
+					{
+						if (state.backtracking == 0) {
+							before(grammarAccess.getNumAccess().getONE_INTTerminalRuleCall_1_0_1());
+						}
+						// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7706:1: ( RULE_ONE_INT )
+						// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7706:3: RULE_ONE_INT
+						{
+							match(input, RULE_ONE_INT, FOLLOW_RULE_ONE_INT_in_rule__Num__Group_1_0__1__Impl15747);
+							if (state.failed) {
+								return;
+							}
+
+						}
+
+						if (state.backtracking == 0) {
+							after(grammarAccess.getNumAccess().getONE_INTTerminalRuleCall_1_0_1());
+						}
+
+					}
+
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7709:1: ( ( RULE_ONE_INT )* )
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7710:1: ( RULE_ONE_INT )*
+					{
+						if (state.backtracking == 0) {
+							before(grammarAccess.getNumAccess().getONE_INTTerminalRuleCall_1_0_1());
+						}
+						// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7711:1: ( RULE_ONE_INT )*
+						loop85: do {
+							int alt85 = 2;
+							int LA85_0 = input.LA(1);
+
+							if ((LA85_0 == RULE_ONE_INT)) {
+								int LA85_2 = input.LA(2);
+
+								if ((synpred136_InternalCSS())) {
+									alt85 = 1;
+								}
+
+
+							}
+
+
+							switch (alt85) {
+							case 1:
+							// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7711:3: RULE_ONE_INT
+							{
+								match(input, RULE_ONE_INT, FOLLOW_RULE_ONE_INT_in_rule__Num__Group_1_0__1__Impl15760);
+								if (state.failed) {
+									return;
+								}
+
+							}
+								break;
+
+							default:
+								break loop85;
+							}
+						} while (true);
+
+						if (state.backtracking == 0) {
+							after(grammarAccess.getNumAccess().getONE_INTTerminalRuleCall_1_0_1());
+						}
+
+					}
+
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Num__Group_1_0__1__Impl"
+
+
+	// $ANTLR start "rule__Num__Group_1_1__0"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7726:1: rule__Num__Group_1_1__0 : rule__Num__Group_1_1__0__Impl rule__Num__Group_1_1__1 ;
+	public final void rule__Num__Group_1_1__0() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7730:1: ( rule__Num__Group_1_1__0__Impl rule__Num__Group_1_1__1 )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7731:2: rule__Num__Group_1_1__0__Impl rule__Num__Group_1_1__1
+			{
+				pushFollow(FOLLOW_rule__Num__Group_1_1__0__Impl_in_rule__Num__Group_1_1__015797);
+				rule__Num__Group_1_1__0__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				pushFollow(FOLLOW_rule__Num__Group_1_1__1_in_rule__Num__Group_1_1__015800);
+				rule__Num__Group_1_1__1();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Num__Group_1_1__0"
+
+
+	// $ANTLR start "rule__Num__Group_1_1__0__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7738:1: rule__Num__Group_1_1__0__Impl : ( ( ( RULE_ONE_INT ) ) ( ( RULE_ONE_INT )* ) ) ;
+	public final void rule__Num__Group_1_1__0__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7742:1: ( ( ( ( RULE_ONE_INT ) ) ( ( RULE_ONE_INT )* ) ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7743:1: ( ( ( RULE_ONE_INT ) ) ( ( RULE_ONE_INT )* ) )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7743:1: ( ( ( RULE_ONE_INT ) ) ( ( RULE_ONE_INT )* ) )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7744:1: ( ( RULE_ONE_INT ) ) ( ( RULE_ONE_INT )* )
+				{
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7744:1: ( ( RULE_ONE_INT ) )
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7745:1: ( RULE_ONE_INT )
+					{
+						if (state.backtracking == 0) {
+							before(grammarAccess.getNumAccess().getONE_INTTerminalRuleCall_1_1_0());
+						}
+						// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7746:1: ( RULE_ONE_INT )
+						// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7746:3: RULE_ONE_INT
+						{
+							match(input, RULE_ONE_INT, FOLLOW_RULE_ONE_INT_in_rule__Num__Group_1_1__0__Impl15830);
+							if (state.failed) {
+								return;
+							}
+
+						}
+
+						if (state.backtracking == 0) {
+							after(grammarAccess.getNumAccess().getONE_INTTerminalRuleCall_1_1_0());
+						}
+
+					}
+
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7749:1: ( ( RULE_ONE_INT )* )
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7750:1: ( RULE_ONE_INT )*
+					{
+						if (state.backtracking == 0) {
+							before(grammarAccess.getNumAccess().getONE_INTTerminalRuleCall_1_1_0());
+						}
+						// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7751:1: ( RULE_ONE_INT )*
+						loop86: do {
+							int alt86 = 2;
+							int LA86_0 = input.LA(1);
+
+							if ((LA86_0 == RULE_ONE_INT)) {
+								int LA86_2 = input.LA(2);
+
+								if ((synpred137_InternalCSS())) {
+									alt86 = 1;
+								}
+
+
+							}
+
+
+							switch (alt86) {
+							case 1:
+							// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7751:3: RULE_ONE_INT
+							{
+								match(input, RULE_ONE_INT, FOLLOW_RULE_ONE_INT_in_rule__Num__Group_1_1__0__Impl15843);
+								if (state.failed) {
+									return;
+								}
+
+							}
+								break;
+
+							default:
+								break loop86;
+							}
+						} while (true);
+
+						if (state.backtracking == 0) {
+							after(grammarAccess.getNumAccess().getONE_INTTerminalRuleCall_1_1_0());
+						}
+
+					}
+
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Num__Group_1_1__0__Impl"
+
+
+	// $ANTLR start "rule__Num__Group_1_1__1"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7762:1: rule__Num__Group_1_1__1 : rule__Num__Group_1_1__1__Impl ;
+	public final void rule__Num__Group_1_1__1() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7766:1: ( rule__Num__Group_1_1__1__Impl )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7767:2: rule__Num__Group_1_1__1__Impl
+			{
+				pushFollow(FOLLOW_rule__Num__Group_1_1__1__Impl_in_rule__Num__Group_1_1__115876);
+				rule__Num__Group_1_1__1__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Num__Group_1_1__1"
+
+
+	// $ANTLR start "rule__Num__Group_1_1__1__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7773:1: rule__Num__Group_1_1__1__Impl : ( ( rule__Num__Group_1_1_1__0 )? ) ;
+	public final void rule__Num__Group_1_1__1__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7777:1: ( ( ( rule__Num__Group_1_1_1__0 )? ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7778:1: ( ( rule__Num__Group_1_1_1__0 )? )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7778:1: ( ( rule__Num__Group_1_1_1__0 )? )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7779:1: ( rule__Num__Group_1_1_1__0 )?
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getNumAccess().getGroup_1_1_1());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7780:1: ( rule__Num__Group_1_1_1__0 )?
+					int alt87 = 2;
+					int LA87_0 = input.LA(1);
+
+					if ((LA87_0 == 39)) {
+						int LA87_1 = input.LA(2);
+
+						if ((LA87_1 == RULE_ONE_INT)) {
+							int LA87_3 = input.LA(3);
+
+							if ((synpred138_InternalCSS())) {
+								alt87 = 1;
+							}
+						}
+					}
+					switch (alt87) {
+					case 1:
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7780:2: rule__Num__Group_1_1_1__0
+					{
+						pushFollow(FOLLOW_rule__Num__Group_1_1_1__0_in_rule__Num__Group_1_1__1__Impl15903);
+						rule__Num__Group_1_1_1__0();
+
+						state._fsp--;
+						if (state.failed) {
+							return;
+						}
+
+					}
+						break;
+
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getNumAccess().getGroup_1_1_1());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Num__Group_1_1__1__Impl"
+
+
+	// $ANTLR start "rule__Num__Group_1_1_1__0"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7794:1: rule__Num__Group_1_1_1__0 : rule__Num__Group_1_1_1__0__Impl rule__Num__Group_1_1_1__1 ;
+	public final void rule__Num__Group_1_1_1__0() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7798:1: ( rule__Num__Group_1_1_1__0__Impl rule__Num__Group_1_1_1__1 )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7799:2: rule__Num__Group_1_1_1__0__Impl rule__Num__Group_1_1_1__1
+			{
+				pushFollow(FOLLOW_rule__Num__Group_1_1_1__0__Impl_in_rule__Num__Group_1_1_1__015938);
+				rule__Num__Group_1_1_1__0__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				pushFollow(FOLLOW_rule__Num__Group_1_1_1__1_in_rule__Num__Group_1_1_1__015941);
+				rule__Num__Group_1_1_1__1();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Num__Group_1_1_1__0"
+
+
+	// $ANTLR start "rule__Num__Group_1_1_1__0__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7806:1: rule__Num__Group_1_1_1__0__Impl : ( ( '.' ) ) ;
+	public final void rule__Num__Group_1_1_1__0__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7810:1: ( ( ( '.' ) ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7811:1: ( ( '.' ) )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7811:1: ( ( '.' ) )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7812:1: ( '.' )
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getNumAccess().getFullStopKeyword_1_1_1_0());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7813:1: ( '.' )
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7814:2: '.'
+					{
+						match(input, 39, FOLLOW_39_in_rule__Num__Group_1_1_1__0__Impl15970);
+						if (state.failed) {
+							return;
+						}
+
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getNumAccess().getFullStopKeyword_1_1_1_0());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Num__Group_1_1_1__0__Impl"
+
+
+	// $ANTLR start "rule__Num__Group_1_1_1__1"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7825:1: rule__Num__Group_1_1_1__1 : rule__Num__Group_1_1_1__1__Impl ;
+	public final void rule__Num__Group_1_1_1__1() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7829:1: ( rule__Num__Group_1_1_1__1__Impl )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7830:2: rule__Num__Group_1_1_1__1__Impl
+			{
+				pushFollow(FOLLOW_rule__Num__Group_1_1_1__1__Impl_in_rule__Num__Group_1_1_1__116002);
+				rule__Num__Group_1_1_1__1__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Num__Group_1_1_1__1"
+
+
+	// $ANTLR start "rule__Num__Group_1_1_1__1__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7836:1: rule__Num__Group_1_1_1__1__Impl : ( ( ( RULE_ONE_INT ) ) ( ( RULE_ONE_INT )* ) ) ;
+	public final void rule__Num__Group_1_1_1__1__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7840:1: ( ( ( ( RULE_ONE_INT ) ) ( ( RULE_ONE_INT )* ) ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7841:1: ( ( ( RULE_ONE_INT ) ) ( ( RULE_ONE_INT )* ) )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7841:1: ( ( ( RULE_ONE_INT ) ) ( ( RULE_ONE_INT )* ) )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7842:1: ( ( RULE_ONE_INT ) ) ( ( RULE_ONE_INT )* )
+				{
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7842:1: ( ( RULE_ONE_INT ) )
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7843:1: ( RULE_ONE_INT )
+					{
+						if (state.backtracking == 0) {
+							before(grammarAccess.getNumAccess().getONE_INTTerminalRuleCall_1_1_1_1());
+						}
+						// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7844:1: ( RULE_ONE_INT )
+						// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7844:3: RULE_ONE_INT
+						{
+							match(input, RULE_ONE_INT, FOLLOW_RULE_ONE_INT_in_rule__Num__Group_1_1_1__1__Impl16032);
+							if (state.failed) {
+								return;
+							}
+
+						}
+
+						if (state.backtracking == 0) {
+							after(grammarAccess.getNumAccess().getONE_INTTerminalRuleCall_1_1_1_1());
+						}
+
+					}
+
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7847:1: ( ( RULE_ONE_INT )* )
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7848:1: ( RULE_ONE_INT )*
+					{
+						if (state.backtracking == 0) {
+							before(grammarAccess.getNumAccess().getONE_INTTerminalRuleCall_1_1_1_1());
+						}
+						// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7849:1: ( RULE_ONE_INT )*
+						loop88: do {
+							int alt88 = 2;
+							int LA88_0 = input.LA(1);
+
+							if ((LA88_0 == RULE_ONE_INT)) {
+								int LA88_2 = input.LA(2);
+
+								if ((synpred139_InternalCSS())) {
+									alt88 = 1;
+								}
+
+
+							}
+
+
+							switch (alt88) {
+							case 1:
+							// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7849:3: RULE_ONE_INT
+							{
+								match(input, RULE_ONE_INT, FOLLOW_RULE_ONE_INT_in_rule__Num__Group_1_1_1__1__Impl16045);
+								if (state.failed) {
+									return;
+								}
+
+							}
+								break;
+
+							default:
+								break loop88;
+							}
+						} while (true);
+
+						if (state.backtracking == 0) {
+							after(grammarAccess.getNumAccess().getONE_INTTerminalRuleCall_1_1_1_1());
+						}
+
+					}
+
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Num__Group_1_1_1__1__Impl"
+
+
+	// $ANTLR start "rule__Hex__Group__0"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7864:1: rule__Hex__Group__0 : rule__Hex__Group__0__Impl rule__Hex__Group__1 ;
+	public final void rule__Hex__Group__0() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7868:1: ( rule__Hex__Group__0__Impl rule__Hex__Group__1 )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7869:2: rule__Hex__Group__0__Impl rule__Hex__Group__1
+			{
+				pushFollow(FOLLOW_rule__Hex__Group__0__Impl_in_rule__Hex__Group__016082);
+				rule__Hex__Group__0__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+				pushFollow(FOLLOW_rule__Hex__Group__1_in_rule__Hex__Group__016085);
+				rule__Hex__Group__1();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Hex__Group__0"
+
+
+	// $ANTLR start "rule__Hex__Group__0__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7876:1: rule__Hex__Group__0__Impl : ( RULE_HASHMARK ) ;
+	public final void rule__Hex__Group__0__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7880:1: ( ( RULE_HASHMARK ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7881:1: ( RULE_HASHMARK )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7881:1: ( RULE_HASHMARK )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7882:1: RULE_HASHMARK
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getHexAccess().getHASHMARKTerminalRuleCall_0());
+					}
+					match(input, RULE_HASHMARK, FOLLOW_RULE_HASHMARK_in_rule__Hex__Group__0__Impl16112);
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getHexAccess().getHASHMARKTerminalRuleCall_0());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Hex__Group__0__Impl"
+
+
+	// $ANTLR start "rule__Hex__Group__1"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7893:1: rule__Hex__Group__1 : rule__Hex__Group__1__Impl ;
+	public final void rule__Hex__Group__1() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7897:1: ( rule__Hex__Group__1__Impl )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7898:2: rule__Hex__Group__1__Impl
+			{
+				pushFollow(FOLLOW_rule__Hex__Group__1__Impl_in_rule__Hex__Group__116141);
+				rule__Hex__Group__1__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Hex__Group__1"
+
+
+	// $ANTLR start "rule__Hex__Group__1__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7904:1: rule__Hex__Group__1__Impl : ( ( ( rule__Hex__Group_1__0 ) ) ( ( rule__Hex__Group_1__0 )* ) ) ;
+	public final void rule__Hex__Group__1__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7908:1: ( ( ( ( rule__Hex__Group_1__0 ) ) ( ( rule__Hex__Group_1__0 )* ) ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7909:1: ( ( ( rule__Hex__Group_1__0 ) ) ( ( rule__Hex__Group_1__0 )* ) )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7909:1: ( ( ( rule__Hex__Group_1__0 ) ) ( ( rule__Hex__Group_1__0 )* ) )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7910:1: ( ( rule__Hex__Group_1__0 ) ) ( ( rule__Hex__Group_1__0 )* )
+				{
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7910:1: ( ( rule__Hex__Group_1__0 ) )
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7911:1: ( rule__Hex__Group_1__0 )
+					{
+						if (state.backtracking == 0) {
+							before(grammarAccess.getHexAccess().getGroup_1());
+						}
+						// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7912:1: ( rule__Hex__Group_1__0 )
+						// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7912:2: rule__Hex__Group_1__0
+						{
+							pushFollow(FOLLOW_rule__Hex__Group_1__0_in_rule__Hex__Group__1__Impl16170);
+							rule__Hex__Group_1__0();
+
+							state._fsp--;
+							if (state.failed) {
+								return;
+							}
+
+						}
+
+						if (state.backtracking == 0) {
+							after(grammarAccess.getHexAccess().getGroup_1());
+						}
+
+					}
+
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7915:1: ( ( rule__Hex__Group_1__0 )* )
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7916:1: ( rule__Hex__Group_1__0 )*
+					{
+						if (state.backtracking == 0) {
+							before(grammarAccess.getHexAccess().getGroup_1());
+						}
+						// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7917:1: ( rule__Hex__Group_1__0 )*
+						loop89: do {
+							int alt89 = 2;
+							int LA89_0 = input.LA(1);
+
+							if ((LA89_0 == RULE_ONE_HEX_LETTER)) {
+								int LA89_2 = input.LA(2);
+
+								if ((synpred140_InternalCSS())) {
+									alt89 = 1;
+								}
+
+
+							}
+							else if ((LA89_0 == RULE_ONE_INT)) {
+								int LA89_3 = input.LA(2);
+
+								if ((synpred140_InternalCSS())) {
+									alt89 = 1;
+								}
+
+
+							}
+
+
+							switch (alt89) {
+							case 1:
+							// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7917:2: rule__Hex__Group_1__0
+							{
+								pushFollow(FOLLOW_rule__Hex__Group_1__0_in_rule__Hex__Group__1__Impl16182);
+								rule__Hex__Group_1__0();
+
+								state._fsp--;
+								if (state.failed) {
+									return;
+								}
+
+							}
+								break;
+
+							default:
+								break loop89;
+							}
+						} while (true);
+
+						if (state.backtracking == 0) {
+							after(grammarAccess.getHexAccess().getGroup_1());
+						}
+
+					}
+
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Hex__Group__1__Impl"
+
+
+	// $ANTLR start "rule__Hex__Group_1__0"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7932:1: rule__Hex__Group_1__0 : rule__Hex__Group_1__0__Impl ;
+	public final void rule__Hex__Group_1__0() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7936:1: ( rule__Hex__Group_1__0__Impl )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7937:2: rule__Hex__Group_1__0__Impl
+			{
+				pushFollow(FOLLOW_rule__Hex__Group_1__0__Impl_in_rule__Hex__Group_1__016219);
+				rule__Hex__Group_1__0__Impl();
+
+				state._fsp--;
+				if (state.failed) {
+					return;
+				}
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Hex__Group_1__0"
+
+
+	// $ANTLR start "rule__Hex__Group_1__0__Impl"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7943:1: rule__Hex__Group_1__0__Impl : ( ( rule__Hex__Alternatives_1_0 ) ) ;
+	public final void rule__Hex__Group_1__0__Impl() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7947:1: ( ( ( rule__Hex__Alternatives_1_0 ) ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7948:1: ( ( rule__Hex__Alternatives_1_0 ) )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7948:1: ( ( rule__Hex__Alternatives_1_0 ) )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7949:1: ( rule__Hex__Alternatives_1_0 )
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getHexAccess().getAlternatives_1_0());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7950:1: ( rule__Hex__Alternatives_1_0 )
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7950:2: rule__Hex__Alternatives_1_0
+					{
+						pushFollow(FOLLOW_rule__Hex__Alternatives_1_0_in_rule__Hex__Group_1__0__Impl16246);
+						rule__Hex__Alternatives_1_0();
+
+						state._fsp--;
+						if (state.failed) {
+							return;
+						}
+
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getHexAccess().getAlternatives_1_0());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Hex__Group_1__0__Impl"
+
+
+	// $ANTLR start "rule__Stylesheet__CharsetAssignment_0"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7963:1: rule__Stylesheet__CharsetAssignment_0 : ( rulecharset ) ;
+	public final void rule__Stylesheet__CharsetAssignment_0() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7967:1: ( ( rulecharset ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7968:1: ( rulecharset )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7968:1: ( rulecharset )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7969:1: rulecharset
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getStylesheetAccess().getCharsetCharsetParserRuleCall_0_0());
+					}
+					pushFollow(FOLLOW_rulecharset_in_rule__Stylesheet__CharsetAssignment_016283);
+					rulecharset();
+
+					state._fsp--;
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getStylesheetAccess().getCharsetCharsetParserRuleCall_0_0());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Stylesheet__CharsetAssignment_0"
+
+
+	// $ANTLR start "rule__Stylesheet__ImportsAssignment_1"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7978:1: rule__Stylesheet__ImportsAssignment_1 : ( ruleimportExpression ) ;
+	public final void rule__Stylesheet__ImportsAssignment_1() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7982:1: ( ( ruleimportExpression ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7983:1: ( ruleimportExpression )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7983:1: ( ruleimportExpression )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7984:1: ruleimportExpression
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getStylesheetAccess().getImportsImportExpressionParserRuleCall_1_0());
+					}
+					pushFollow(FOLLOW_ruleimportExpression_in_rule__Stylesheet__ImportsAssignment_116314);
+					ruleimportExpression();
+
+					state._fsp--;
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getStylesheetAccess().getImportsImportExpressionParserRuleCall_1_0());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Stylesheet__ImportsAssignment_1"
+
+
+	// $ANTLR start "rule__Stylesheet__RulesetAssignment_2_0"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7993:1: rule__Stylesheet__RulesetAssignment_2_0 : ( ruleruleset ) ;
+	public final void rule__Stylesheet__RulesetAssignment_2_0() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7997:1: ( ( ruleruleset ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7998:1: ( ruleruleset )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7998:1: ( ruleruleset )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7999:1: ruleruleset
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getStylesheetAccess().getRulesetRulesetParserRuleCall_2_0_0());
+					}
+					pushFollow(FOLLOW_ruleruleset_in_rule__Stylesheet__RulesetAssignment_2_016345);
+					ruleruleset();
+
+					state._fsp--;
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getStylesheetAccess().getRulesetRulesetParserRuleCall_2_0_0());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Stylesheet__RulesetAssignment_2_0"
+
+
+	// $ANTLR start "rule__Stylesheet__MediaAssignment_2_1"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8008:1: rule__Stylesheet__MediaAssignment_2_1 : ( rulemedia ) ;
+	public final void rule__Stylesheet__MediaAssignment_2_1() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8012:1: ( ( rulemedia ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8013:1: ( rulemedia )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8013:1: ( rulemedia )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8014:1: rulemedia
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getStylesheetAccess().getMediaMediaParserRuleCall_2_1_0());
+					}
+					pushFollow(FOLLOW_rulemedia_in_rule__Stylesheet__MediaAssignment_2_116376);
+					rulemedia();
+
+					state._fsp--;
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getStylesheetAccess().getMediaMediaParserRuleCall_2_1_0());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Stylesheet__MediaAssignment_2_1"
+
+
+	// $ANTLR start "rule__Stylesheet__PageAssignment_2_2"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8023:1: rule__Stylesheet__PageAssignment_2_2 : ( rulepage ) ;
+	public final void rule__Stylesheet__PageAssignment_2_2() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8027:1: ( ( rulepage ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8028:1: ( rulepage )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8028:1: ( rulepage )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8029:1: rulepage
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getStylesheetAccess().getPagePageParserRuleCall_2_2_0());
+					}
+					pushFollow(FOLLOW_rulepage_in_rule__Stylesheet__PageAssignment_2_216407);
+					rulepage();
+
+					state._fsp--;
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getStylesheetAccess().getPagePageParserRuleCall_2_2_0());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Stylesheet__PageAssignment_2_2"
+
+
+	// $ANTLR start "rule__Stylesheet__Font_faceAssignment_2_3"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8038:1: rule__Stylesheet__Font_faceAssignment_2_3 : ( rulefont_face ) ;
+	public final void rule__Stylesheet__Font_faceAssignment_2_3() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8042:1: ( ( rulefont_face ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8043:1: ( rulefont_face )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8043:1: ( rulefont_face )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8044:1: rulefont_face
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getStylesheetAccess().getFont_faceFont_faceParserRuleCall_2_3_0());
+					}
+					pushFollow(FOLLOW_rulefont_face_in_rule__Stylesheet__Font_faceAssignment_2_316438);
+					rulefont_face();
+
+					state._fsp--;
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getStylesheetAccess().getFont_faceFont_faceParserRuleCall_2_3_0());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Stylesheet__Font_faceAssignment_2_3"
+
+
+	// $ANTLR start "rule__Stylesheet__KeyframesAssignment_2_4"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8053:1: rule__Stylesheet__KeyframesAssignment_2_4 : ( rulekeyframes ) ;
+	public final void rule__Stylesheet__KeyframesAssignment_2_4() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8057:1: ( ( rulekeyframes ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8058:1: ( rulekeyframes )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8058:1: ( rulekeyframes )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8059:1: rulekeyframes
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getStylesheetAccess().getKeyframesKeyframesParserRuleCall_2_4_0());
+					}
+					pushFollow(FOLLOW_rulekeyframes_in_rule__Stylesheet__KeyframesAssignment_2_416469);
+					rulekeyframes();
+
+					state._fsp--;
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getStylesheetAccess().getKeyframesKeyframesParserRuleCall_2_4_0());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Stylesheet__KeyframesAssignment_2_4"
+
+
+	// $ANTLR start "rule__Charset__CharsetAssignment_1"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8068:1: rule__Charset__CharsetAssignment_1 : ( RULE_CSSSTRING ) ;
+	public final void rule__Charset__CharsetAssignment_1() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8072:1: ( ( RULE_CSSSTRING ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8073:1: ( RULE_CSSSTRING )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8073:1: ( RULE_CSSSTRING )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8074:1: RULE_CSSSTRING
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getCharsetAccess().getCharsetCSSSTRINGTerminalRuleCall_1_0());
+					}
+					match(input, RULE_CSSSTRING, FOLLOW_RULE_CSSSTRING_in_rule__Charset__CharsetAssignment_116500);
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getCharsetAccess().getCharsetCSSSTRINGTerminalRuleCall_1_0());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Charset__CharsetAssignment_1"
+
+
+	// $ANTLR start "rule__ImportExpression__ValueAssignment_1_0"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8083:1: rule__ImportExpression__ValueAssignment_1_0 : ( RULE_CSSSTRING ) ;
+	public final void rule__ImportExpression__ValueAssignment_1_0() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8087:1: ( ( RULE_CSSSTRING ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8088:1: ( RULE_CSSSTRING )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8088:1: ( RULE_CSSSTRING )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8089:1: RULE_CSSSTRING
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getImportExpressionAccess().getValueCSSSTRINGTerminalRuleCall_1_0_0());
+					}
+					match(input, RULE_CSSSTRING, FOLLOW_RULE_CSSSTRING_in_rule__ImportExpression__ValueAssignment_1_016531);
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getImportExpressionAccess().getValueCSSSTRINGTerminalRuleCall_1_0_0());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__ImportExpression__ValueAssignment_1_0"
+
+
+	// $ANTLR start "rule__ImportExpression__MediaListAssignment_1_1_1"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8098:1: rule__ImportExpression__MediaListAssignment_1_1_1 : ( rulemedia_list ) ;
+	public final void rule__ImportExpression__MediaListAssignment_1_1_1() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8102:1: ( ( rulemedia_list ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8103:1: ( rulemedia_list )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8103:1: ( rulemedia_list )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8104:1: rulemedia_list
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getImportExpressionAccess().getMediaListMedia_listParserRuleCall_1_1_1_0());
+					}
+					pushFollow(FOLLOW_rulemedia_list_in_rule__ImportExpression__MediaListAssignment_1_1_116562);
+					rulemedia_list();
+
+					state._fsp--;
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getImportExpressionAccess().getMediaListMedia_listParserRuleCall_1_1_1_0());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__ImportExpression__MediaListAssignment_1_1_1"
+
+
+	// $ANTLR start "rule__Page__PseudoPageAssignment_2"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8113:1: rule__Page__PseudoPageAssignment_2 : ( rulepseudo_page ) ;
+	public final void rule__Page__PseudoPageAssignment_2() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8117:1: ( ( rulepseudo_page ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8118:1: ( rulepseudo_page )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8118:1: ( rulepseudo_page )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8119:1: rulepseudo_page
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getPageAccess().getPseudoPagePseudo_pageParserRuleCall_2_0());
+					}
+					pushFollow(FOLLOW_rulepseudo_page_in_rule__Page__PseudoPageAssignment_216593);
+					rulepseudo_page();
+
+					state._fsp--;
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getPageAccess().getPseudoPagePseudo_pageParserRuleCall_2_0());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Page__PseudoPageAssignment_2"
+
+
+	// $ANTLR start "rule__Page__DeclarationsAssignment_4"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8128:1: rule__Page__DeclarationsAssignment_4 : ( rulecss_declaration ) ;
+	public final void rule__Page__DeclarationsAssignment_4() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8132:1: ( ( rulecss_declaration ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8133:1: ( rulecss_declaration )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8133:1: ( rulecss_declaration )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8134:1: rulecss_declaration
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getPageAccess().getDeclarationsCss_declarationParserRuleCall_4_0());
+					}
+					pushFollow(FOLLOW_rulecss_declaration_in_rule__Page__DeclarationsAssignment_416624);
+					rulecss_declaration();
+
+					state._fsp--;
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getPageAccess().getDeclarationsCss_declarationParserRuleCall_4_0());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Page__DeclarationsAssignment_4"
+
+
+	// $ANTLR start "rule__Page__DeclarationsAssignment_5_1"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8143:1: rule__Page__DeclarationsAssignment_5_1 : ( rulecss_declaration ) ;
+	public final void rule__Page__DeclarationsAssignment_5_1() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8147:1: ( ( rulecss_declaration ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8148:1: ( rulecss_declaration )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8148:1: ( rulecss_declaration )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8149:1: rulecss_declaration
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getPageAccess().getDeclarationsCss_declarationParserRuleCall_5_1_0());
+					}
+					pushFollow(FOLLOW_rulecss_declaration_in_rule__Page__DeclarationsAssignment_5_116655);
+					rulecss_declaration();
+
+					state._fsp--;
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getPageAccess().getDeclarationsCss_declarationParserRuleCall_5_1_0());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Page__DeclarationsAssignment_5_1"
+
+
+	// $ANTLR start "rule__Media__MedialistAssignment_1"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8158:1: rule__Media__MedialistAssignment_1 : ( rulemedia_list ) ;
+	public final void rule__Media__MedialistAssignment_1() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8162:1: ( ( rulemedia_list ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8163:1: ( rulemedia_list )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8163:1: ( rulemedia_list )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8164:1: rulemedia_list
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getMediaAccess().getMedialistMedia_listParserRuleCall_1_0());
+					}
+					pushFollow(FOLLOW_rulemedia_list_in_rule__Media__MedialistAssignment_116686);
+					rulemedia_list();
+
+					state._fsp--;
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getMediaAccess().getMedialistMedia_listParserRuleCall_1_0());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Media__MedialistAssignment_1"
+
+
+	// $ANTLR start "rule__Media__RulesetsAssignment_3"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8173:1: rule__Media__RulesetsAssignment_3 : ( ruleruleset ) ;
+	public final void rule__Media__RulesetsAssignment_3() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8177:1: ( ( ruleruleset ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8178:1: ( ruleruleset )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8178:1: ( ruleruleset )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8179:1: ruleruleset
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getMediaAccess().getRulesetsRulesetParserRuleCall_3_0());
+					}
+					pushFollow(FOLLOW_ruleruleset_in_rule__Media__RulesetsAssignment_316717);
+					ruleruleset();
+
+					state._fsp--;
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getMediaAccess().getRulesetsRulesetParserRuleCall_3_0());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Media__RulesetsAssignment_3"
+
+
+	// $ANTLR start "rule__Font_face__DeclarationsAssignment_3"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8188:1: rule__Font_face__DeclarationsAssignment_3 : ( rulecss_declaration ) ;
+	public final void rule__Font_face__DeclarationsAssignment_3() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8192:1: ( ( rulecss_declaration ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8193:1: ( rulecss_declaration )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8193:1: ( rulecss_declaration )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8194:1: rulecss_declaration
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getFont_faceAccess().getDeclarationsCss_declarationParserRuleCall_3_0());
+					}
+					pushFollow(FOLLOW_rulecss_declaration_in_rule__Font_face__DeclarationsAssignment_316748);
+					rulecss_declaration();
+
+					state._fsp--;
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getFont_faceAccess().getDeclarationsCss_declarationParserRuleCall_3_0());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Font_face__DeclarationsAssignment_3"
+
+
+	// $ANTLR start "rule__Font_face__DeclarationsAssignment_4_1"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8203:1: rule__Font_face__DeclarationsAssignment_4_1 : ( rulecss_declaration ) ;
+	public final void rule__Font_face__DeclarationsAssignment_4_1() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8207:1: ( ( rulecss_declaration ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8208:1: ( rulecss_declaration )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8208:1: ( rulecss_declaration )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8209:1: rulecss_declaration
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getFont_faceAccess().getDeclarationsCss_declarationParserRuleCall_4_1_0());
+					}
+					pushFollow(FOLLOW_rulecss_declaration_in_rule__Font_face__DeclarationsAssignment_4_116779);
+					rulecss_declaration();
+
+					state._fsp--;
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getFont_faceAccess().getDeclarationsCss_declarationParserRuleCall_4_1_0());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Font_face__DeclarationsAssignment_4_1"
+
+
+	// $ANTLR start "rule__Keyframes__NameAssignment_2"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8218:1: rule__Keyframes__NameAssignment_2 : ( ruleIdentifier ) ;
+	public final void rule__Keyframes__NameAssignment_2() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8222:1: ( ( ruleIdentifier ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8223:1: ( ruleIdentifier )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8223:1: ( ruleIdentifier )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8224:1: ruleIdentifier
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getKeyframesAccess().getNameIdentifierParserRuleCall_2_0());
+					}
+					pushFollow(FOLLOW_ruleIdentifier_in_rule__Keyframes__NameAssignment_216810);
+					ruleIdentifier();
+
+					state._fsp--;
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getKeyframesAccess().getNameIdentifierParserRuleCall_2_0());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Keyframes__NameAssignment_2"
+
+
+	// $ANTLR start "rule__Keyframes__KeyframeselectorsAssignment_4"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8233:1: rule__Keyframes__KeyframeselectorsAssignment_4 : ( rulekeyframe_selector ) ;
+	public final void rule__Keyframes__KeyframeselectorsAssignment_4() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8237:1: ( ( rulekeyframe_selector ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8238:1: ( rulekeyframe_selector )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8238:1: ( rulekeyframe_selector )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8239:1: rulekeyframe_selector
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getKeyframesAccess().getKeyframeselectorsKeyframe_selectorParserRuleCall_4_0());
+					}
+					pushFollow(FOLLOW_rulekeyframe_selector_in_rule__Keyframes__KeyframeselectorsAssignment_416841);
+					rulekeyframe_selector();
+
+					state._fsp--;
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getKeyframesAccess().getKeyframeselectorsKeyframe_selectorParserRuleCall_4_0());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Keyframes__KeyframeselectorsAssignment_4"
+
+
+	// $ANTLR start "rule__Keyframes__KeyframeselectorsAssignment_5_1"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8248:1: rule__Keyframes__KeyframeselectorsAssignment_5_1 : ( rulekeyframe_selector ) ;
+	public final void rule__Keyframes__KeyframeselectorsAssignment_5_1() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8252:1: ( ( rulekeyframe_selector ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8253:1: ( rulekeyframe_selector )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8253:1: ( rulekeyframe_selector )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8254:1: rulekeyframe_selector
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getKeyframesAccess().getKeyframeselectorsKeyframe_selectorParserRuleCall_5_1_0());
+					}
+					pushFollow(FOLLOW_rulekeyframe_selector_in_rule__Keyframes__KeyframeselectorsAssignment_5_116872);
+					rulekeyframe_selector();
+
+					state._fsp--;
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getKeyframesAccess().getKeyframeselectorsKeyframe_selectorParserRuleCall_5_1_0());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Keyframes__KeyframeselectorsAssignment_5_1"
+
+
+	// $ANTLR start "rule__Keyframe_selector__TypeAssignment_0_0"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8263:1: rule__Keyframe_selector__TypeAssignment_0_0 : ( ruleIdentifier ) ;
+	public final void rule__Keyframe_selector__TypeAssignment_0_0() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8267:1: ( ( ruleIdentifier ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8268:1: ( ruleIdentifier )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8268:1: ( ruleIdentifier )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8269:1: ruleIdentifier
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getKeyframe_selectorAccess().getTypeIdentifierParserRuleCall_0_0_0());
+					}
+					pushFollow(FOLLOW_ruleIdentifier_in_rule__Keyframe_selector__TypeAssignment_0_016903);
+					ruleIdentifier();
+
+					state._fsp--;
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getKeyframe_selectorAccess().getTypeIdentifierParserRuleCall_0_0_0());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Keyframe_selector__TypeAssignment_0_0"
+
+
+	// $ANTLR start "rule__Keyframe_selector__PercentageAssignment_0_1_0"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8278:1: rule__Keyframe_selector__PercentageAssignment_0_1_0 : ( ruleNum ) ;
+	public final void rule__Keyframe_selector__PercentageAssignment_0_1_0() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8282:1: ( ( ruleNum ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8283:1: ( ruleNum )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8283:1: ( ruleNum )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8284:1: ruleNum
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getKeyframe_selectorAccess().getPercentageNumParserRuleCall_0_1_0_0());
+					}
+					pushFollow(FOLLOW_ruleNum_in_rule__Keyframe_selector__PercentageAssignment_0_1_016934);
+					ruleNum();
+
+					state._fsp--;
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getKeyframe_selectorAccess().getPercentageNumParserRuleCall_0_1_0_0());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Keyframe_selector__PercentageAssignment_0_1_0"
+
+
+	// $ANTLR start "rule__Keyframe_selector__DeclarationsAssignment_2"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8293:1: rule__Keyframe_selector__DeclarationsAssignment_2 : ( rulecss_declaration ) ;
+	public final void rule__Keyframe_selector__DeclarationsAssignment_2() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8297:1: ( ( rulecss_declaration ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8298:1: ( rulecss_declaration )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8298:1: ( rulecss_declaration )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8299:1: rulecss_declaration
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getKeyframe_selectorAccess().getDeclarationsCss_declarationParserRuleCall_2_0());
+					}
+					pushFollow(FOLLOW_rulecss_declaration_in_rule__Keyframe_selector__DeclarationsAssignment_216965);
+					rulecss_declaration();
+
+					state._fsp--;
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getKeyframe_selectorAccess().getDeclarationsCss_declarationParserRuleCall_2_0());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Keyframe_selector__DeclarationsAssignment_2"
+
+
+	// $ANTLR start "rule__Keyframe_selector__DeclarationsAssignment_3_1"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8308:1: rule__Keyframe_selector__DeclarationsAssignment_3_1 : ( rulecss_declaration ) ;
+	public final void rule__Keyframe_selector__DeclarationsAssignment_3_1() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8312:1: ( ( rulecss_declaration ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8313:1: ( rulecss_declaration )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8313:1: ( rulecss_declaration )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8314:1: rulecss_declaration
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getKeyframe_selectorAccess().getDeclarationsCss_declarationParserRuleCall_3_1_0());
+					}
+					pushFollow(FOLLOW_rulecss_declaration_in_rule__Keyframe_selector__DeclarationsAssignment_3_116996);
+					rulecss_declaration();
+
+					state._fsp--;
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getKeyframe_selectorAccess().getDeclarationsCss_declarationParserRuleCall_3_1_0());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Keyframe_selector__DeclarationsAssignment_3_1"
+
+
+	// $ANTLR start "rule__Ruleset__SelectorsAssignment_0"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8323:1: rule__Ruleset__SelectorsAssignment_0 : ( ruleselector ) ;
+	public final void rule__Ruleset__SelectorsAssignment_0() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8327:1: ( ( ruleselector ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8328:1: ( ruleselector )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8328:1: ( ruleselector )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8329:1: ruleselector
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getRulesetAccess().getSelectorsSelectorParserRuleCall_0_0());
+					}
+					pushFollow(FOLLOW_ruleselector_in_rule__Ruleset__SelectorsAssignment_017027);
+					ruleselector();
+
+					state._fsp--;
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getRulesetAccess().getSelectorsSelectorParserRuleCall_0_0());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Ruleset__SelectorsAssignment_0"
+
+
+	// $ANTLR start "rule__Ruleset__SelectorsAssignment_1_2"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8338:1: rule__Ruleset__SelectorsAssignment_1_2 : ( ruleselector ) ;
+	public final void rule__Ruleset__SelectorsAssignment_1_2() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8342:1: ( ( ruleselector ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8343:1: ( ruleselector )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8343:1: ( ruleselector )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8344:1: ruleselector
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getRulesetAccess().getSelectorsSelectorParserRuleCall_1_2_0());
+					}
+					pushFollow(FOLLOW_ruleselector_in_rule__Ruleset__SelectorsAssignment_1_217058);
+					ruleselector();
+
+					state._fsp--;
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getRulesetAccess().getSelectorsSelectorParserRuleCall_1_2_0());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Ruleset__SelectorsAssignment_1_2"
+
+
+	// $ANTLR start "rule__Ruleset__DeclarationsAssignment_4_0"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8353:1: rule__Ruleset__DeclarationsAssignment_4_0 : ( rulecss_declaration ) ;
+	public final void rule__Ruleset__DeclarationsAssignment_4_0() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8357:1: ( ( rulecss_declaration ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8358:1: ( rulecss_declaration )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8358:1: ( rulecss_declaration )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8359:1: rulecss_declaration
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getRulesetAccess().getDeclarationsCss_declarationParserRuleCall_4_0_0());
+					}
+					pushFollow(FOLLOW_rulecss_declaration_in_rule__Ruleset__DeclarationsAssignment_4_017089);
+					rulecss_declaration();
+
+					state._fsp--;
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getRulesetAccess().getDeclarationsCss_declarationParserRuleCall_4_0_0());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Ruleset__DeclarationsAssignment_4_0"
+
+
+	// $ANTLR start "rule__Ruleset__DeclarationsAssignment_4_1_1"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8368:1: rule__Ruleset__DeclarationsAssignment_4_1_1 : ( rulecss_declaration ) ;
+	public final void rule__Ruleset__DeclarationsAssignment_4_1_1() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8372:1: ( ( rulecss_declaration ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8373:1: ( rulecss_declaration )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8373:1: ( rulecss_declaration )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8374:1: rulecss_declaration
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getRulesetAccess().getDeclarationsCss_declarationParserRuleCall_4_1_1_0());
+					}
+					pushFollow(FOLLOW_rulecss_declaration_in_rule__Ruleset__DeclarationsAssignment_4_1_117120);
+					rulecss_declaration();
+
+					state._fsp--;
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getRulesetAccess().getDeclarationsCss_declarationParserRuleCall_4_1_1_0());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Ruleset__DeclarationsAssignment_4_1_1"
+
+
+	// $ANTLR start "rule__Selector__SimpleselectorsAssignment_0"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8383:1: rule__Selector__SimpleselectorsAssignment_0 : ( rulesimple_selector ) ;
+	public final void rule__Selector__SimpleselectorsAssignment_0() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8387:1: ( ( rulesimple_selector ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8388:1: ( rulesimple_selector )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8388:1: ( rulesimple_selector )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8389:1: rulesimple_selector
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getSelectorAccess().getSimpleselectorsSimple_selectorParserRuleCall_0_0());
+					}
+					pushFollow(FOLLOW_rulesimple_selector_in_rule__Selector__SimpleselectorsAssignment_017151);
+					rulesimple_selector();
+
+					state._fsp--;
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getSelectorAccess().getSimpleselectorsSimple_selectorParserRuleCall_0_0());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Selector__SimpleselectorsAssignment_0"
+
+
+	// $ANTLR start "rule__Selector__CombinatorAssignment_1_0_0"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8398:1: rule__Selector__CombinatorAssignment_1_0_0 : ( rulecombinator ) ;
+	public final void rule__Selector__CombinatorAssignment_1_0_0() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8402:1: ( ( rulecombinator ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8403:1: ( rulecombinator )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8403:1: ( rulecombinator )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8404:1: rulecombinator
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getSelectorAccess().getCombinatorCombinatorParserRuleCall_1_0_0_0());
+					}
+					pushFollow(FOLLOW_rulecombinator_in_rule__Selector__CombinatorAssignment_1_0_017182);
+					rulecombinator();
+
+					state._fsp--;
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getSelectorAccess().getCombinatorCombinatorParserRuleCall_1_0_0_0());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Selector__CombinatorAssignment_1_0_0"
+
+
+	// $ANTLR start "rule__Selector__SelectorAssignment_1_0_2"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8413:1: rule__Selector__SelectorAssignment_1_0_2 : ( ruleselector ) ;
+	public final void rule__Selector__SelectorAssignment_1_0_2() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8417:1: ( ( ruleselector ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8418:1: ( ruleselector )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8418:1: ( ruleselector )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8419:1: ruleselector
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getSelectorAccess().getSelectorSelectorParserRuleCall_1_0_2_0());
+					}
+					pushFollow(FOLLOW_ruleselector_in_rule__Selector__SelectorAssignment_1_0_217213);
+					ruleselector();
+
+					state._fsp--;
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getSelectorAccess().getSelectorSelectorParserRuleCall_1_0_2_0());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Selector__SelectorAssignment_1_0_2"
+
+
+	// $ANTLR start "rule__Selector__CombinatorAssignment_1_1_1_0"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8428:1: rule__Selector__CombinatorAssignment_1_1_1_0 : ( rulecombinator ) ;
+	public final void rule__Selector__CombinatorAssignment_1_1_1_0() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8432:1: ( ( rulecombinator ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8433:1: ( rulecombinator )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8433:1: ( rulecombinator )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8434:1: rulecombinator
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getSelectorAccess().getCombinatorCombinatorParserRuleCall_1_1_1_0_0());
+					}
+					pushFollow(FOLLOW_rulecombinator_in_rule__Selector__CombinatorAssignment_1_1_1_017244);
+					rulecombinator();
+
+					state._fsp--;
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getSelectorAccess().getCombinatorCombinatorParserRuleCall_1_1_1_0_0());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Selector__CombinatorAssignment_1_1_1_0"
+
+
+	// $ANTLR start "rule__Selector__SelectorAssignment_1_1_2"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8443:1: rule__Selector__SelectorAssignment_1_1_2 : ( ruleselector ) ;
+	public final void rule__Selector__SelectorAssignment_1_1_2() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8447:1: ( ( ruleselector ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8448:1: ( ruleselector )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8448:1: ( ruleselector )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8449:1: ruleselector
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getSelectorAccess().getSelectorSelectorParserRuleCall_1_1_2_0());
+					}
+					pushFollow(FOLLOW_ruleselector_in_rule__Selector__SelectorAssignment_1_1_217275);
+					ruleselector();
+
+					state._fsp--;
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getSelectorAccess().getSelectorSelectorParserRuleCall_1_1_2_0());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Selector__SelectorAssignment_1_1_2"
+
+
+	// $ANTLR start "rule__SimpleSelectorForNegation__ElementAssignment_0_0_0"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8458:1: rule__SimpleSelectorForNegation__ElementAssignment_0_0_0 : ( ruleElementSelector ) ;
+	public final void rule__SimpleSelectorForNegation__ElementAssignment_0_0_0() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8462:1: ( ( ruleElementSelector ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8463:1: ( ruleElementSelector )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8463:1: ( ruleElementSelector )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8464:1: ruleElementSelector
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getSimpleSelectorForNegationAccess().getElementElementSelectorParserRuleCall_0_0_0_0());
+					}
+					pushFollow(FOLLOW_ruleElementSelector_in_rule__SimpleSelectorForNegation__ElementAssignment_0_0_017306);
+					ruleElementSelector();
+
+					state._fsp--;
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getSimpleSelectorForNegationAccess().getElementElementSelectorParserRuleCall_0_0_0_0());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__SimpleSelectorForNegation__ElementAssignment_0_0_0"
+
+
+	// $ANTLR start "rule__SimpleSelectorForNegation__UniversalAssignment_0_0_1"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8473:1: rule__SimpleSelectorForNegation__UniversalAssignment_0_0_1 : ( ruleUniversalSelector ) ;
+	public final void rule__SimpleSelectorForNegation__UniversalAssignment_0_0_1() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8477:1: ( ( ruleUniversalSelector ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8478:1: ( ruleUniversalSelector )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8478:1: ( ruleUniversalSelector )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8479:1: ruleUniversalSelector
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getSimpleSelectorForNegationAccess().getUniversalUniversalSelectorParserRuleCall_0_0_1_0());
+					}
+					pushFollow(FOLLOW_ruleUniversalSelector_in_rule__SimpleSelectorForNegation__UniversalAssignment_0_0_117337);
+					ruleUniversalSelector();
+
+					state._fsp--;
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getSimpleSelectorForNegationAccess().getUniversalUniversalSelectorParserRuleCall_0_0_1_0());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__SimpleSelectorForNegation__UniversalAssignment_0_0_1"
+
+
+	// $ANTLR start "rule__SimpleSelectorForNegation__SubSelectorsAssignment_0_1"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8488:1: rule__SimpleSelectorForNegation__SubSelectorsAssignment_0_1 : ( ruleSubSelectorForNegation ) ;
+	public final void rule__SimpleSelectorForNegation__SubSelectorsAssignment_0_1() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8492:1: ( ( ruleSubSelectorForNegation ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8493:1: ( ruleSubSelectorForNegation )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8493:1: ( ruleSubSelectorForNegation )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8494:1: ruleSubSelectorForNegation
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getSimpleSelectorForNegationAccess().getSubSelectorsSubSelectorForNegationParserRuleCall_0_1_0());
+					}
+					pushFollow(FOLLOW_ruleSubSelectorForNegation_in_rule__SimpleSelectorForNegation__SubSelectorsAssignment_0_117368);
+					ruleSubSelectorForNegation();
+
+					state._fsp--;
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getSimpleSelectorForNegationAccess().getSubSelectorsSubSelectorForNegationParserRuleCall_0_1_0());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__SimpleSelectorForNegation__SubSelectorsAssignment_0_1"
+
+
+	// $ANTLR start "rule__SimpleSelectorForNegation__SubSelectorsAssignment_1"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8503:1: rule__SimpleSelectorForNegation__SubSelectorsAssignment_1 : ( ruleSubSelectorForNegation ) ;
+	public final void rule__SimpleSelectorForNegation__SubSelectorsAssignment_1() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8507:1: ( ( ruleSubSelectorForNegation ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8508:1: ( ruleSubSelectorForNegation )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8508:1: ( ruleSubSelectorForNegation )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8509:1: ruleSubSelectorForNegation
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getSimpleSelectorForNegationAccess().getSubSelectorsSubSelectorForNegationParserRuleCall_1_0());
+					}
+					pushFollow(FOLLOW_ruleSubSelectorForNegation_in_rule__SimpleSelectorForNegation__SubSelectorsAssignment_117399);
+					ruleSubSelectorForNegation();
+
+					state._fsp--;
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getSimpleSelectorForNegationAccess().getSubSelectorsSubSelectorForNegationParserRuleCall_1_0());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__SimpleSelectorForNegation__SubSelectorsAssignment_1"
+
+
+	// $ANTLR start "rule__Simple_selector__ElementAssignment_0_0_0"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8518:1: rule__Simple_selector__ElementAssignment_0_0_0 : ( ruleElementSelector ) ;
+	public final void rule__Simple_selector__ElementAssignment_0_0_0() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8522:1: ( ( ruleElementSelector ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8523:1: ( ruleElementSelector )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8523:1: ( ruleElementSelector )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8524:1: ruleElementSelector
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getSimple_selectorAccess().getElementElementSelectorParserRuleCall_0_0_0_0());
+					}
+					pushFollow(FOLLOW_ruleElementSelector_in_rule__Simple_selector__ElementAssignment_0_0_017430);
+					ruleElementSelector();
+
+					state._fsp--;
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getSimple_selectorAccess().getElementElementSelectorParserRuleCall_0_0_0_0());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Simple_selector__ElementAssignment_0_0_0"
+
+
+	// $ANTLR start "rule__Simple_selector__UniversalAssignment_0_0_1"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8533:1: rule__Simple_selector__UniversalAssignment_0_0_1 : ( ruleUniversalSelector ) ;
+	public final void rule__Simple_selector__UniversalAssignment_0_0_1() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8537:1: ( ( ruleUniversalSelector ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8538:1: ( ruleUniversalSelector )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8538:1: ( ruleUniversalSelector )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8539:1: ruleUniversalSelector
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getSimple_selectorAccess().getUniversalUniversalSelectorParserRuleCall_0_0_1_0());
+					}
+					pushFollow(FOLLOW_ruleUniversalSelector_in_rule__Simple_selector__UniversalAssignment_0_0_117461);
+					ruleUniversalSelector();
+
+					state._fsp--;
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getSimple_selectorAccess().getUniversalUniversalSelectorParserRuleCall_0_0_1_0());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Simple_selector__UniversalAssignment_0_0_1"
+
+
+	// $ANTLR start "rule__Simple_selector__SubSelectorsAssignment_0_1"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8548:1: rule__Simple_selector__SubSelectorsAssignment_0_1 : ( ruleSubSelector ) ;
+	public final void rule__Simple_selector__SubSelectorsAssignment_0_1() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8552:1: ( ( ruleSubSelector ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8553:1: ( ruleSubSelector )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8553:1: ( ruleSubSelector )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8554:1: ruleSubSelector
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getSimple_selectorAccess().getSubSelectorsSubSelectorParserRuleCall_0_1_0());
+					}
+					pushFollow(FOLLOW_ruleSubSelector_in_rule__Simple_selector__SubSelectorsAssignment_0_117492);
+					ruleSubSelector();
+
+					state._fsp--;
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getSimple_selectorAccess().getSubSelectorsSubSelectorParserRuleCall_0_1_0());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Simple_selector__SubSelectorsAssignment_0_1"
+
+
+	// $ANTLR start "rule__Simple_selector__SubSelectorsAssignment_1"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8563:1: rule__Simple_selector__SubSelectorsAssignment_1 : ( ruleSubSelector ) ;
+	public final void rule__Simple_selector__SubSelectorsAssignment_1() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8567:1: ( ( ruleSubSelector ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8568:1: ( ruleSubSelector )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8568:1: ( ruleSubSelector )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8569:1: ruleSubSelector
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getSimple_selectorAccess().getSubSelectorsSubSelectorParserRuleCall_1_0());
+					}
+					pushFollow(FOLLOW_ruleSubSelector_in_rule__Simple_selector__SubSelectorsAssignment_117523);
+					ruleSubSelector();
+
+					state._fsp--;
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getSimple_selectorAccess().getSubSelectorsSubSelectorParserRuleCall_1_0());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Simple_selector__SubSelectorsAssignment_1"
+
+
+	// $ANTLR start "rule__AttributeSelector__NameAssignment_2"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8578:1: rule__AttributeSelector__NameAssignment_2 : ( ruleIdentifier ) ;
+	public final void rule__AttributeSelector__NameAssignment_2() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8582:1: ( ( ruleIdentifier ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8583:1: ( ruleIdentifier )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8583:1: ( ruleIdentifier )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8584:1: ruleIdentifier
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getAttributeSelectorAccess().getNameIdentifierParserRuleCall_2_0());
+					}
+					pushFollow(FOLLOW_ruleIdentifier_in_rule__AttributeSelector__NameAssignment_217554);
+					ruleIdentifier();
+
+					state._fsp--;
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getAttributeSelectorAccess().getNameIdentifierParserRuleCall_2_0());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__AttributeSelector__NameAssignment_2"
+
+
+	// $ANTLR start "rule__AttributeSelector__OpAssignment_3_0"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8593:1: rule__AttributeSelector__OpAssignment_3_0 : ( ( rule__AttributeSelector__OpAlternatives_3_0_0 ) ) ;
+	public final void rule__AttributeSelector__OpAssignment_3_0() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8597:1: ( ( ( rule__AttributeSelector__OpAlternatives_3_0_0 ) ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8598:1: ( ( rule__AttributeSelector__OpAlternatives_3_0_0 ) )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8598:1: ( ( rule__AttributeSelector__OpAlternatives_3_0_0 ) )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8599:1: ( rule__AttributeSelector__OpAlternatives_3_0_0 )
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getAttributeSelectorAccess().getOpAlternatives_3_0_0());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8600:1: ( rule__AttributeSelector__OpAlternatives_3_0_0 )
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8600:2: rule__AttributeSelector__OpAlternatives_3_0_0
+					{
+						pushFollow(FOLLOW_rule__AttributeSelector__OpAlternatives_3_0_0_in_rule__AttributeSelector__OpAssignment_3_017585);
+						rule__AttributeSelector__OpAlternatives_3_0_0();
+
+						state._fsp--;
+						if (state.failed) {
+							return;
+						}
+
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getAttributeSelectorAccess().getOpAlternatives_3_0_0());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__AttributeSelector__OpAssignment_3_0"
+
+
+	// $ANTLR start "rule__AttributeSelector__ValueAssignment_3_1"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8609:1: rule__AttributeSelector__ValueAssignment_3_1 : ( ( rule__AttributeSelector__ValueAlternatives_3_1_0 )
+	// ) ;
+	public final void rule__AttributeSelector__ValueAssignment_3_1() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8613:1: ( ( ( rule__AttributeSelector__ValueAlternatives_3_1_0 ) ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8614:1: ( ( rule__AttributeSelector__ValueAlternatives_3_1_0 ) )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8614:1: ( ( rule__AttributeSelector__ValueAlternatives_3_1_0 ) )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8615:1: ( rule__AttributeSelector__ValueAlternatives_3_1_0 )
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getAttributeSelectorAccess().getValueAlternatives_3_1_0());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8616:1: ( rule__AttributeSelector__ValueAlternatives_3_1_0 )
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8616:2: rule__AttributeSelector__ValueAlternatives_3_1_0
+					{
+						pushFollow(FOLLOW_rule__AttributeSelector__ValueAlternatives_3_1_0_in_rule__AttributeSelector__ValueAssignment_3_117618);
+						rule__AttributeSelector__ValueAlternatives_3_1_0();
+
+						state._fsp--;
+						if (state.failed) {
+							return;
+						}
+
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getAttributeSelectorAccess().getValueAlternatives_3_1_0());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__AttributeSelector__ValueAssignment_3_1"
+
+
+	// $ANTLR start "rule__ClassSelector__NameAssignment_2"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8625:1: rule__ClassSelector__NameAssignment_2 : ( ruleIdentifier ) ;
+	public final void rule__ClassSelector__NameAssignment_2() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8629:1: ( ( ruleIdentifier ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8630:1: ( ruleIdentifier )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8630:1: ( ruleIdentifier )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8631:1: ruleIdentifier
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getClassSelectorAccess().getNameIdentifierParserRuleCall_2_0());
+					}
+					pushFollow(FOLLOW_ruleIdentifier_in_rule__ClassSelector__NameAssignment_217651);
+					ruleIdentifier();
+
+					state._fsp--;
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getClassSelectorAccess().getNameIdentifierParserRuleCall_2_0());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__ClassSelector__NameAssignment_2"
+
+
+	// $ANTLR start "rule__ElementSelector__NameAssignment_1"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8640:1: rule__ElementSelector__NameAssignment_1 : ( ruleIdentifier ) ;
+	public final void rule__ElementSelector__NameAssignment_1() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8644:1: ( ( ruleIdentifier ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8645:1: ( ruleIdentifier )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8645:1: ( ruleIdentifier )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8646:1: ruleIdentifier
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getElementSelectorAccess().getNameIdentifierParserRuleCall_1_0());
+					}
+					pushFollow(FOLLOW_ruleIdentifier_in_rule__ElementSelector__NameAssignment_117682);
+					ruleIdentifier();
+
+					state._fsp--;
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getElementSelectorAccess().getNameIdentifierParserRuleCall_1_0());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__ElementSelector__NameAssignment_1"
+
+
+	// $ANTLR start "rule__UniversalSelector__NamespaceAssignment_1"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8655:1: rule__UniversalSelector__NamespaceAssignment_1 : ( rulecss_namespace_prefix ) ;
+	public final void rule__UniversalSelector__NamespaceAssignment_1() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8659:1: ( ( rulecss_namespace_prefix ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8660:1: ( rulecss_namespace_prefix )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8660:1: ( rulecss_namespace_prefix )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8661:1: rulecss_namespace_prefix
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getUniversalSelectorAccess().getNamespaceCss_namespace_prefixParserRuleCall_1_0());
+					}
+					pushFollow(FOLLOW_rulecss_namespace_prefix_in_rule__UniversalSelector__NamespaceAssignment_117713);
+					rulecss_namespace_prefix();
+
+					state._fsp--;
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getUniversalSelectorAccess().getNamespaceCss_namespace_prefixParserRuleCall_1_0());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__UniversalSelector__NamespaceAssignment_1"
+
+
+	// $ANTLR start "rule__IdSelector__NameAssignment_2"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8670:1: rule__IdSelector__NameAssignment_2 : ( ruleIdentifier ) ;
+	public final void rule__IdSelector__NameAssignment_2() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8674:1: ( ( ruleIdentifier ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8675:1: ( ruleIdentifier )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8675:1: ( ruleIdentifier )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8676:1: ruleIdentifier
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getIdSelectorAccess().getNameIdentifierParserRuleCall_2_0());
+					}
+					pushFollow(FOLLOW_ruleIdentifier_in_rule__IdSelector__NameAssignment_217744);
+					ruleIdentifier();
+
+					state._fsp--;
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getIdSelectorAccess().getNameIdentifierParserRuleCall_2_0());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__IdSelector__NameAssignment_2"
+
+
+	// $ANTLR start "rule__Css_declaration__PropertyAssignment_1"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8685:1: rule__Css_declaration__PropertyAssignment_1 : ( rulecss_property ) ;
+	public final void rule__Css_declaration__PropertyAssignment_1() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8689:1: ( ( rulecss_property ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8690:1: ( rulecss_property )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8690:1: ( rulecss_property )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8691:1: rulecss_property
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getCss_declarationAccess().getPropertyCss_propertyParserRuleCall_1_0());
+					}
+					pushFollow(FOLLOW_rulecss_property_in_rule__Css_declaration__PropertyAssignment_117775);
+					rulecss_property();
+
+					state._fsp--;
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getCss_declarationAccess().getPropertyCss_propertyParserRuleCall_1_0());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Css_declaration__PropertyAssignment_1"
+
+
+	// $ANTLR start "rule__Css_declaration__ValueTokensAssignment_4"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8700:1: rule__Css_declaration__ValueTokensAssignment_4 : ( ruleCssTok ) ;
+	public final void rule__Css_declaration__ValueTokensAssignment_4() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8704:1: ( ( ruleCssTok ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8705:1: ( ruleCssTok )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8705:1: ( ruleCssTok )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8706:1: ruleCssTok
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getCss_declarationAccess().getValueTokensCssTokParserRuleCall_4_0());
+					}
+					pushFollow(FOLLOW_ruleCssTok_in_rule__Css_declaration__ValueTokensAssignment_417806);
+					ruleCssTok();
+
+					state._fsp--;
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getCss_declarationAccess().getValueTokensCssTokParserRuleCall_4_0());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Css_declaration__ValueTokensAssignment_4"
+
+
+	// $ANTLR start "rule__Css_declaration__ImportantAssignment_5"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8715:1: rule__Css_declaration__ImportantAssignment_5 : ( RULE_IMPORTANT_SYM ) ;
+	public final void rule__Css_declaration__ImportantAssignment_5() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8719:1: ( ( RULE_IMPORTANT_SYM ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8720:1: ( RULE_IMPORTANT_SYM )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8720:1: ( RULE_IMPORTANT_SYM )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8721:1: RULE_IMPORTANT_SYM
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getCss_declarationAccess().getImportantIMPORTANT_SYMTerminalRuleCall_5_0());
+					}
+					match(input, RULE_IMPORTANT_SYM, FOLLOW_RULE_IMPORTANT_SYM_in_rule__Css_declaration__ImportantAssignment_517837);
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getCss_declarationAccess().getImportantIMPORTANT_SYMTerminalRuleCall_5_0());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Css_declaration__ImportantAssignment_5"
+
+
+	// $ANTLR start "rule__Css_property__NameAssignment_1"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8730:1: rule__Css_property__NameAssignment_1 : ( ruleValidPropertyIdent ) ;
+	public final void rule__Css_property__NameAssignment_1() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8734:1: ( ( ruleValidPropertyIdent ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8735:1: ( ruleValidPropertyIdent )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8735:1: ( ruleValidPropertyIdent )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8736:1: ruleValidPropertyIdent
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getCss_propertyAccess().getNameValidPropertyIdentParserRuleCall_1_0());
+					}
+					pushFollow(FOLLOW_ruleValidPropertyIdent_in_rule__Css_property__NameAssignment_117868);
+					ruleValidPropertyIdent();
+
+					state._fsp--;
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getCss_propertyAccess().getNameValidPropertyIdentParserRuleCall_1_0());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__Css_property__NameAssignment_1"
+
+
+	// $ANTLR start "rule__PseudoClassName__NameAssignment"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8745:1: rule__PseudoClassName__NameAssignment : ( ruleIdentifier ) ;
+	public final void rule__PseudoClassName__NameAssignment() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8749:1: ( ( ruleIdentifier ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8750:1: ( ruleIdentifier )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8750:1: ( ruleIdentifier )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8751:1: ruleIdentifier
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getPseudoClassNameAccess().getNameIdentifierParserRuleCall_0());
+					}
+					pushFollow(FOLLOW_ruleIdentifier_in_rule__PseudoClassName__NameAssignment17899);
+					ruleIdentifier();
+
+					state._fsp--;
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getPseudoClassNameAccess().getNameIdentifierParserRuleCall_0());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__PseudoClassName__NameAssignment"
+
+
+	// $ANTLR start "rule__PseudoClassFunction__NotAssignment_0_0"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8760:1: rule__PseudoClassFunction__NotAssignment_0_0 : ( ruleNotFunctionCall ) ;
+	public final void rule__PseudoClassFunction__NotAssignment_0_0() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8764:1: ( ( ruleNotFunctionCall ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8765:1: ( ruleNotFunctionCall )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8765:1: ( ruleNotFunctionCall )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8766:1: ruleNotFunctionCall
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getPseudoClassFunctionAccess().getNotNotFunctionCallParserRuleCall_0_0_0());
+					}
+					pushFollow(FOLLOW_ruleNotFunctionCall_in_rule__PseudoClassFunction__NotAssignment_0_017930);
+					ruleNotFunctionCall();
+
+					state._fsp--;
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getPseudoClassFunctionAccess().getNotNotFunctionCallParserRuleCall_0_0_0());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__PseudoClassFunction__NotAssignment_0_0"
+
+
+	// $ANTLR start "rule__PseudoClassFunction__ParamSelectorAssignment_0_1"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8775:1: rule__PseudoClassFunction__ParamSelectorAssignment_0_1 : ( ruleSimpleSelectorForNegation ) ;
+	public final void rule__PseudoClassFunction__ParamSelectorAssignment_0_1() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8779:1: ( ( ruleSimpleSelectorForNegation ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8780:1: ( ruleSimpleSelectorForNegation )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8780:1: ( ruleSimpleSelectorForNegation )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8781:1: ruleSimpleSelectorForNegation
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getPseudoClassFunctionAccess().getParamSelectorSimpleSelectorForNegationParserRuleCall_0_1_0());
+					}
+					pushFollow(FOLLOW_ruleSimpleSelectorForNegation_in_rule__PseudoClassFunction__ParamSelectorAssignment_0_117961);
+					ruleSimpleSelectorForNegation();
+
+					state._fsp--;
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getPseudoClassFunctionAccess().getParamSelectorSimpleSelectorForNegationParserRuleCall_0_1_0());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__PseudoClassFunction__ParamSelectorAssignment_0_1"
+
+
+	// $ANTLR start "rule__PseudoClassFunction__NameAssignment_1_1"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8790:1: rule__PseudoClassFunction__NameAssignment_1_1 : ( ruleIdentifier ) ;
+	public final void rule__PseudoClassFunction__NameAssignment_1_1() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8794:1: ( ( ruleIdentifier ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8795:1: ( ruleIdentifier )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8795:1: ( ruleIdentifier )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8796:1: ruleIdentifier
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getPseudoClassFunctionAccess().getNameIdentifierParserRuleCall_1_1_0());
+					}
+					pushFollow(FOLLOW_ruleIdentifier_in_rule__PseudoClassFunction__NameAssignment_1_117992);
+					ruleIdentifier();
+
+					state._fsp--;
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getPseudoClassFunctionAccess().getNameIdentifierParserRuleCall_1_1_0());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__PseudoClassFunction__NameAssignment_1_1"
+
+
+	// $ANTLR start "rule__PseudoClassFunction__ParamsAssignment_1_3"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8805:1: rule__PseudoClassFunction__ParamsAssignment_1_3 : ( ruleCssTok ) ;
+	public final void rule__PseudoClassFunction__ParamsAssignment_1_3() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8809:1: ( ( ruleCssTok ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8810:1: ( ruleCssTok )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8810:1: ( ruleCssTok )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8811:1: ruleCssTok
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getPseudoClassFunctionAccess().getParamsCssTokParserRuleCall_1_3_0());
+					}
+					pushFollow(FOLLOW_ruleCssTok_in_rule__PseudoClassFunction__ParamsAssignment_1_318023);
+					ruleCssTok();
+
+					state._fsp--;
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getPseudoClassFunctionAccess().getParamsCssTokParserRuleCall_1_3_0());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__PseudoClassFunction__ParamsAssignment_1_3"
+
+
+	// $ANTLR start "rule__SymbolTok__SymbolAssignment_1"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8820:1: rule__SymbolTok__SymbolAssignment_1 : ( ( rule__SymbolTok__SymbolAlternatives_1_0 ) ) ;
+	public final void rule__SymbolTok__SymbolAssignment_1() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8824:1: ( ( ( rule__SymbolTok__SymbolAlternatives_1_0 ) ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8825:1: ( ( rule__SymbolTok__SymbolAlternatives_1_0 ) )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8825:1: ( ( rule__SymbolTok__SymbolAlternatives_1_0 ) )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8826:1: ( rule__SymbolTok__SymbolAlternatives_1_0 )
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getSymbolTokAccess().getSymbolAlternatives_1_0());
+					}
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8827:1: ( rule__SymbolTok__SymbolAlternatives_1_0 )
+					// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8827:2: rule__SymbolTok__SymbolAlternatives_1_0
+					{
+						pushFollow(FOLLOW_rule__SymbolTok__SymbolAlternatives_1_0_in_rule__SymbolTok__SymbolAssignment_118054);
+						rule__SymbolTok__SymbolAlternatives_1_0();
+
+						state._fsp--;
+						if (state.failed) {
+							return;
+						}
+
+					}
+
+					if (state.backtracking == 0) {
+						after(grammarAccess.getSymbolTokAccess().getSymbolAlternatives_1_0());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__SymbolTok__SymbolAssignment_1"
+
+
+	// $ANTLR start "rule__StringTok__ValueAssignment_1"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8836:1: rule__StringTok__ValueAssignment_1 : ( RULE_CSSSTRING ) ;
+	public final void rule__StringTok__ValueAssignment_1() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8840:1: ( ( RULE_CSSSTRING ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8841:1: ( RULE_CSSSTRING )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8841:1: ( RULE_CSSSTRING )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8842:1: RULE_CSSSTRING
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getStringTokAccess().getValueCSSSTRINGTerminalRuleCall_1_0());
+					}
+					match(input, RULE_CSSSTRING, FOLLOW_RULE_CSSSTRING_in_rule__StringTok__ValueAssignment_118087);
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getStringTokAccess().getValueCSSSTRINGTerminalRuleCall_1_0());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__StringTok__ValueAssignment_1"
+
+
+	// $ANTLR start "rule__NumberTok__ValAssignment_1"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8851:1: rule__NumberTok__ValAssignment_1 : ( ruleNum ) ;
+	public final void rule__NumberTok__ValAssignment_1() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8855:1: ( ( ruleNum ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8856:1: ( ruleNum )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8856:1: ( ruleNum )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8857:1: ruleNum
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getNumberTokAccess().getValNumParserRuleCall_1_0());
+					}
+					pushFollow(FOLLOW_ruleNum_in_rule__NumberTok__ValAssignment_118118);
+					ruleNum();
+
+					state._fsp--;
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getNumberTokAccess().getValNumParserRuleCall_1_0());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__NumberTok__ValAssignment_1"
+
+
+	// $ANTLR start "rule__UrlTok__UrlAssignment_1"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8866:1: rule__UrlTok__UrlAssignment_1 : ( ruleURLType ) ;
+	public final void rule__UrlTok__UrlAssignment_1() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8870:1: ( ( ruleURLType ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8871:1: ( ruleURLType )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8871:1: ( ruleURLType )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8872:1: ruleURLType
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getUrlTokAccess().getUrlURLTypeParserRuleCall_1_0());
+					}
+					pushFollow(FOLLOW_ruleURLType_in_rule__UrlTok__UrlAssignment_118149);
+					ruleURLType();
+
+					state._fsp--;
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getUrlTokAccess().getUrlURLTypeParserRuleCall_1_0());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__UrlTok__UrlAssignment_1"
+
+
+	// $ANTLR start "rule__ColorTok__ValueAssignment_1"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8881:1: rule__ColorTok__ValueAssignment_1 : ( ruleHex ) ;
+	public final void rule__ColorTok__ValueAssignment_1() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8885:1: ( ( ruleHex ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8886:1: ( ruleHex )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8886:1: ( ruleHex )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8887:1: ruleHex
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getColorTokAccess().getValueHexParserRuleCall_1_0());
+					}
+					pushFollow(FOLLOW_ruleHex_in_rule__ColorTok__ValueAssignment_118180);
+					ruleHex();
+
+					state._fsp--;
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getColorTokAccess().getValueHexParserRuleCall_1_0());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__ColorTok__ValueAssignment_1"
+
+
+	// $ANTLR start "rule__IdentifierOrFuncTok__NameAssignment_1"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8896:1: rule__IdentifierOrFuncTok__NameAssignment_1 : ( ruleIdentifier ) ;
+	public final void rule__IdentifierOrFuncTok__NameAssignment_1() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8900:1: ( ( ruleIdentifier ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8901:1: ( ruleIdentifier )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8901:1: ( ruleIdentifier )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8902:1: ruleIdentifier
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getIdentifierOrFuncTokAccess().getNameIdentifierParserRuleCall_1_0());
+					}
+					pushFollow(FOLLOW_ruleIdentifier_in_rule__IdentifierOrFuncTok__NameAssignment_118211);
+					ruleIdentifier();
+
+					state._fsp--;
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getIdentifierOrFuncTokAccess().getNameIdentifierParserRuleCall_1_0());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__IdentifierOrFuncTok__NameAssignment_1"
+
+
+	// $ANTLR start "rule__IdentifierOrFuncTok__ParamsAssignment_2_2"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8911:1: rule__IdentifierOrFuncTok__ParamsAssignment_2_2 : ( ruleCssTok ) ;
+	public final void rule__IdentifierOrFuncTok__ParamsAssignment_2_2() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8915:1: ( ( ruleCssTok ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8916:1: ( ruleCssTok )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8916:1: ( ruleCssTok )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8917:1: ruleCssTok
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getIdentifierOrFuncTokAccess().getParamsCssTokParserRuleCall_2_2_0());
+					}
+					pushFollow(FOLLOW_ruleCssTok_in_rule__IdentifierOrFuncTok__ParamsAssignment_2_218242);
+					ruleCssTok();
+
+					state._fsp--;
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getIdentifierOrFuncTokAccess().getParamsCssTokParserRuleCall_2_2_0());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__IdentifierOrFuncTok__ParamsAssignment_2_2"
+
+
+	// $ANTLR start "rule__URLType__UrlAssignment_1"
+	// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8926:1: rule__URLType__UrlAssignment_1 : ( ruleValidURL ) ;
+	public final void rule__URLType__UrlAssignment_1() throws RecognitionException {
+
+		int stackSize = keepStackSize();
+
+		try {
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8930:1: ( ( ruleValidURL ) )
+			// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8931:1: ( ruleValidURL )
+			{
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8931:1: ( ruleValidURL )
+				// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:8932:1: ruleValidURL
+				{
+					if (state.backtracking == 0) {
+						before(grammarAccess.getURLTypeAccess().getUrlValidURLParserRuleCall_1_0());
+					}
+					pushFollow(FOLLOW_ruleValidURL_in_rule__URLType__UrlAssignment_118273);
+					ruleValidURL();
+
+					state._fsp--;
+					if (state.failed) {
+						return;
+					}
+					if (state.backtracking == 0) {
+						after(grammarAccess.getURLTypeAccess().getUrlValidURLParserRuleCall_1_0());
+					}
+
+				}
+
+
+			}
+
+		} catch (RecognitionException re) {
+			reportError(re);
+			recover(input, re);
+		} finally {
+
+			restoreStackSize(stackSize);
+
+		}
+		return;
+	}
+
+	// $ANTLR end "rule__URLType__UrlAssignment_1"
+
+	// $ANTLR start synpred134_InternalCSS
+	public final void synpred134_InternalCSS_fragment() throws RecognitionException {
+		// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7549:2: ( rule__Identifier__Group_2__0 )
+		// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7549:2: rule__Identifier__Group_2__0
+		{
+			pushFollow(FOLLOW_rule__Identifier__Group_2__0_in_synpred134_InternalCSS15437);
+			rule__Identifier__Group_2__0();
+
+			state._fsp--;
+			if (state.failed) {
+				return;
+			}
+
+		}
+	}
+
+	// $ANTLR end synpred134_InternalCSS
+
+	// $ANTLR start synpred136_InternalCSS
+	public final void synpred136_InternalCSS_fragment() throws RecognitionException {
+		// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7711:3: ( RULE_ONE_INT )
+		// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7711:3: RULE_ONE_INT
+		{
+			match(input, RULE_ONE_INT, FOLLOW_RULE_ONE_INT_in_synpred136_InternalCSS15760);
+			if (state.failed) {
+				return;
+			}
+
+		}
+	}
+
+	// $ANTLR end synpred136_InternalCSS
+
+	// $ANTLR start synpred137_InternalCSS
+	public final void synpred137_InternalCSS_fragment() throws RecognitionException {
+		// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7751:3: ( RULE_ONE_INT )
+		// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7751:3: RULE_ONE_INT
+		{
+			match(input, RULE_ONE_INT, FOLLOW_RULE_ONE_INT_in_synpred137_InternalCSS15843);
+			if (state.failed) {
+				return;
+			}
+
+		}
+	}
+
+	// $ANTLR end synpred137_InternalCSS
+
+	// $ANTLR start synpred138_InternalCSS
+	public final void synpred138_InternalCSS_fragment() throws RecognitionException {
+		// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7780:2: ( rule__Num__Group_1_1_1__0 )
+		// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7780:2: rule__Num__Group_1_1_1__0
+		{
+			pushFollow(FOLLOW_rule__Num__Group_1_1_1__0_in_synpred138_InternalCSS15903);
+			rule__Num__Group_1_1_1__0();
+
+			state._fsp--;
+			if (state.failed) {
+				return;
+			}
+
+		}
+	}
+
+	// $ANTLR end synpred138_InternalCSS
+
+	// $ANTLR start synpred139_InternalCSS
+	public final void synpred139_InternalCSS_fragment() throws RecognitionException {
+		// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7849:3: ( RULE_ONE_INT )
+		// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7849:3: RULE_ONE_INT
+		{
+			match(input, RULE_ONE_INT, FOLLOW_RULE_ONE_INT_in_synpred139_InternalCSS16045);
+			if (state.failed) {
+				return;
+			}
+
+		}
+	}
+
+	// $ANTLR end synpred139_InternalCSS
+
+	// $ANTLR start synpred140_InternalCSS
+	public final void synpred140_InternalCSS_fragment() throws RecognitionException {
+		// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7917:2: ( rule__Hex__Group_1__0 )
+		// ../org.eclipse.papyrus.infra.gmfdiag.css3.xtext.ui/src-gen/org/eclipse/papyrus/infra/gmfdiag/css3/ui/contentassist/antlr/internal/InternalCSS.g:7917:2: rule__Hex__Group_1__0
+		{
+			pushFollow(FOLLOW_rule__Hex__Group_1__0_in_synpred140_InternalCSS16182);
+			rule__Hex__Group_1__0();
+
+			state._fsp--;
+			if (state.failed) {
+				return;
+			}
+
+		}
+	}
+
+	// $ANTLR end synpred140_InternalCSS
+
+	// Delegated rules
+
+	public final boolean synpred139_InternalCSS() {
+		state.backtracking++;
+		int start = input.mark();
+		try {
+			synpred139_InternalCSS_fragment(); // can never throw exception
+		} catch (RecognitionException re) {
+			System.err.println("impossible: " + re);
+		}
+		boolean success = !state.failed;
+		input.rewind(start);
+		state.backtracking--;
+		state.failed = false;
+		return success;
+	}
+
+	public final boolean synpred137_InternalCSS() {
+		state.backtracking++;
+		int start = input.mark();
+		try {
+			synpred137_InternalCSS_fragment(); // can never throw exception
+		} catch (RecognitionException re) {
+			System.err.println("impossible: " + re);
+		}
+		boolean success = !state.failed;
+		input.rewind(start);
+		state.backtracking--;
+		state.failed = false;
+		return success;
+	}
+
+	public final boolean synpred134_InternalCSS() {
+		state.backtracking++;
+		int start = input.mark();
+		try {
+			synpred134_InternalCSS_fragment(); // can never throw exception
+		} catch (RecognitionException re) {
+			System.err.println("impossible: " + re);
+		}
+		boolean success = !state.failed;
+		input.rewind(start);
+		state.backtracking--;
+		state.failed = false;
+		return success;
+	}
+
+	public final boolean synpred140_InternalCSS() {
+		state.backtracking++;
+		int start = input.mark();
+		try {
+			synpred140_InternalCSS_fragment(); // can never throw exception
+		} catch (RecognitionException re) {
+			System.err.println("impossible: " + re);
+		}
+		boolean success = !state.failed;
+		input.rewind(start);
+		state.backtracking--;
+		state.failed = false;
+		return success;
+	}
+
+	public final boolean synpred136_InternalCSS() {
+		state.backtracking++;
+		int start = input.mark();
+		try {
+			synpred136_InternalCSS_fragment(); // can never throw exception
+		} catch (RecognitionException re) {
+			System.err.println("impossible: " + re);
+		}
+		boolean success = !state.failed;
+		input.rewind(start);
+		state.backtracking--;
+		state.failed = false;
+		return success;
+	}
+
+	public final boolean synpred138_InternalCSS() {
+		state.backtracking++;
+		int start = input.mark();
+		try {
+			synpred138_InternalCSS_fragment(); // can never throw exception
+		} catch (RecognitionException re) {
+			System.err.println("impossible: " + re);
+		}
+		boolean success = !state.failed;
+		input.rewind(start);
+		state.backtracking--;
+		state.failed = false;
+		return success;
+	}
+
+
+	protected DFA13 dfa13 = new DFA13(this);
+	protected DFA17 dfa17 = new DFA17(this);
+	protected DFA22 dfa22 = new DFA22(this);
+	protected DFA58 dfa58 = new DFA58(this);
+	protected DFA64 dfa64 = new DFA64(this);
+	protected DFA83 dfa83 = new DFA83(this);
+	static final String DFA13_eotS =
+			"\24\uffff";
+	static final String DFA13_eofS =
+			"\2\uffff\7\23\1\uffff\11\23\1\uffff";
+	static final String DFA13_minS =
+			"\1\12\1\13\7\12\1\uffff\11\12\1\uffff";
+	static final String DFA13_maxS =
+			"\1\74\1\64\7\75\1\uffff\11\75\1\uffff";
+	static final String DFA13_acceptS =
+			"\11\uffff\1\2\11\uffff\1\1";
+	static final String DFA13_specialS =
+			"\24\uffff}>";
+	static final String[] DFA13_transitionS = {
+			"\1\1\1\2\2\uffff\1\3\1\4\24\uffff\1\11\14\uffff\1\5\1\6\1\7" +
+					"\1\10\7\uffff\1\11",
+			"\1\2\2\uffff\1\3\1\4\41\uffff\1\5\1\6\1\7\1\10",
+			"\1\13\1\12\2\23\1\14\1\15\1\16\26\uffff\1\23\2\uffff\1\23" +
+					"\6\uffff\1\17\1\20\1\21\1\22\7\uffff\1\11\1\23",
+			"\1\13\1\12\2\23\1\14\1\15\1\16\26\uffff\1\23\2\uffff\1\23" +
+					"\6\uffff\1\17\1\20\1\21\1\22\7\uffff\1\11\1\23",
+			"\1\13\1\12\2\23\1\14\1\15\1\16\26\uffff\1\23\2\uffff\1\23" +
+					"\6\uffff\1\17\1\20\1\21\1\22\7\uffff\1\11\1\23",
+			"\1\13\1\12\2\23\1\14\1\15\1\16\26\uffff\1\23\2\uffff\1\23" +
+					"\6\uffff\1\17\1\20\1\21\1\22\7\uffff\1\11\1\23",
+			"\1\13\1\12\2\23\1\14\1\15\1\16\26\uffff\1\23\2\uffff\1\23" +
+					"\6\uffff\1\17\1\20\1\21\1\22\7\uffff\1\11\1\23",
+			"\1\13\1\12\2\23\1\14\1\15\1\16\26\uffff\1\23\2\uffff\1\23" +
+					"\6\uffff\1\17\1\20\1\21\1\22\7\uffff\1\11\1\23",
+			"\1\13\1\12\2\23\1\14\1\15\1\16\26\uffff\1\23\2\uffff\1\23" +
+					"\6\uffff\1\17\1\20\1\21\1\22\7\uffff\1\11\1\23",
+			"",
+			"\1\13\1\12\2\23\1\14\1\15\1\16\26\uffff\1\23\2\uffff\1\23" +
+					"\6\uffff\1\17\1\20\1\21\1\22\7\uffff\1\11\1\23",
+			"\1\13\1\12\2\23\1\14\1\15\1\16\26\uffff\1\23\2\uffff\1\23" +
+					"\6\uffff\1\17\1\20\1\21\1\22\7\uffff\1\11\1\23",
+			"\1\13\1\12\2\23\1\14\1\15\1\16\26\uffff\1\23\2\uffff\1\23" +
+					"\6\uffff\1\17\1\20\1\21\1\22\7\uffff\1\11\1\23",
+			"\1\13\1\12\2\23\1\14\1\15\1\16\26\uffff\1\23\2\uffff\1\23" +
+					"\6\uffff\1\17\1\20\1\21\1\22\7\uffff\1\11\1\23",
+			"\1\13\1\12\2\23\1\14\1\15\1\16\26\uffff\1\23\2\uffff\1\23" +
+					"\6\uffff\1\17\1\20\1\21\1\22\7\uffff\1\11\1\23",
+			"\1\13\1\12\2\23\1\14\1\15\1\16\26\uffff\1\23\2\uffff\1\23" +
+					"\6\uffff\1\17\1\20\1\21\1\22\7\uffff\1\11\1\23",
+			"\1\13\1\12\2\23\1\14\1\15\1\16\26\uffff\1\23\2\uffff\1\23" +
+					"\6\uffff\1\17\1\20\1\21\1\22\7\uffff\1\11\1\23",
+			"\1\13\1\12\2\23\1\14\1\15\1\16\26\uffff\1\23\2\uffff\1\23" +
+					"\6\uffff\1\17\1\20\1\21\1\22\7\uffff\1\11\1\23",
+			"\1\13\1\12\2\23\1\14\1\15\1\16\26\uffff\1\23\2\uffff\1\23" +
+					"\6\uffff\1\17\1\20\1\21\1\22\7\uffff\1\11\1\23",
+			""
+	};
+
+	static final short[] DFA13_eot = DFA.unpackEncodedString(DFA13_eotS);
+	static final short[] DFA13_eof = DFA.unpackEncodedString(DFA13_eofS);
+	static final char[] DFA13_min = DFA.unpackEncodedStringToUnsignedChars(DFA13_minS);
+	static final char[] DFA13_max = DFA.unpackEncodedStringToUnsignedChars(DFA13_maxS);
+	static final short[] DFA13_accept = DFA.unpackEncodedString(DFA13_acceptS);
+	static final short[] DFA13_special = DFA.unpackEncodedString(DFA13_specialS);
+	static final short[][] DFA13_transition;
+
+	static {
+		int numStates = DFA13_transitionS.length;
+		DFA13_transition = new short[numStates][];
+		for (int i = 0; i < numStates; i++) {
+			DFA13_transition[i] = org.antlr.runtime.DFA.unpackEncodedString(DFA13_transitionS[i]);
+		}
+	}
+
+	class DFA13 extends DFA {
+
+		public DFA13(BaseRecognizer recognizer) {
+			this.recognizer = recognizer;
+			this.decisionNumber = 13;
+			this.eot = DFA13_eot;
+			this.eof = DFA13_eof;
+			this.min = DFA13_min;
+			this.max = DFA13_max;
+			this.accept = DFA13_accept;
+			this.special = DFA13_special;
+			this.transition = DFA13_transition;
+		}
+
+		@Override
+		public String getDescription() {
+			return "1768:1: rule__SimpleSelectorForNegation__Alternatives_0_0 : ( ( ( rule__SimpleSelectorForNegation__ElementAssignment_0_0_0 ) ) | ( ( rule__SimpleSelectorForNegation__UniversalAssignment_0_0_1 ) ) );";
+		}
+	}
+
+	static final String DFA17_eotS =
+			"\24\uffff";
+	static final String DFA17_eofS =
+			"\2\uffff\7\23\1\uffff\11\23\1\uffff";
+	static final String DFA17_minS =
+			"\1\12\1\13\7\7\1\uffff\11\7\1\uffff";
+	static final String DFA17_maxS =
+			"\1\74\1\64\7\74\1\uffff\11\74\1\uffff";
+	static final String DFA17_acceptS =
+			"\11\uffff\1\2\11\uffff\1\1";
+	static final String DFA17_specialS =
+			"\24\uffff}>";
+	static final String[] DFA17_transitionS = {
+			"\1\1\1\2\2\uffff\1\3\1\4\24\uffff\1\11\14\uffff\1\5\1\6\1\7" +
+					"\1\10\7\uffff\1\11",
+			"\1\2\2\uffff\1\3\1\4\41\uffff\1\5\1\6\1\7\1\10",
+			"\2\23\1\uffff\1\13\1\12\2\23\1\14\1\15\1\16\1\23\23\uffff" +
+					"\3\23\2\uffff\1\23\6\uffff\1\17\1\20\1\21\1\22\5\uffff\1\23" +
+					"\1\uffff\1\11",
+			"\2\23\1\uffff\1\13\1\12\2\23\1\14\1\15\1\16\1\23\23\uffff" +
+					"\3\23\2\uffff\1\23\6\uffff\1\17\1\20\1\21\1\22\5\uffff\1\23" +
+					"\1\uffff\1\11",
+			"\2\23\1\uffff\1\13\1\12\2\23\1\14\1\15\1\16\1\23\23\uffff" +
+					"\3\23\2\uffff\1\23\6\uffff\1\17\1\20\1\21\1\22\5\uffff\1\23" +
+					"\1\uffff\1\11",
+			"\2\23\1\uffff\1\13\1\12\2\23\1\14\1\15\1\16\1\23\23\uffff" +
+					"\3\23\2\uffff\1\23\6\uffff\1\17\1\20\1\21\1\22\5\uffff\1\23" +
+					"\1\uffff\1\11",
+			"\2\23\1\uffff\1\13\1\12\2\23\1\14\1\15\1\16\1\23\23\uffff" +
+					"\3\23\2\uffff\1\23\6\uffff\1\17\1\20\1\21\1\22\5\uffff\1\23" +
+					"\1\uffff\1\11",
+			"\2\23\1\uffff\1\13\1\12\2\23\1\14\1\15\1\16\1\23\23\uffff" +
+					"\3\23\2\uffff\1\23\6\uffff\1\17\1\20\1\21\1\22\5\uffff\1\23" +
+					"\1\uffff\1\11",
+			"\2\23\1\uffff\1\13\1\12\2\23\1\14\1\15\1\16\1\23\23\uffff" +
+					"\3\23\2\uffff\1\23\6\uffff\1\17\1\20\1\21\1\22\5\uffff\1\23" +
+					"\1\uffff\1\11",
+			"",
+			"\2\23\1\uffff\1\13\1\12\2\23\1\14\1\15\1\16\1\23\23\uffff" +
+					"\3\23\2\uffff\1\23\6\uffff\1\17\1\20\1\21\1\22\5\uffff\1\23" +
+					"\1\uffff\1\11",
+			"\2\23\1\uffff\1\13\1\12\2\23\1\14\1\15\1\16\1\23\23\uffff" +
+					"\3\23\2\uffff\1\23\6\uffff\1\17\1\20\1\21\1\22\5\uffff\1\23" +
+					"\1\uffff\1\11",
+			"\2\23\1\uffff\1\13\1\12\2\23\1\14\1\15\1\16\1\23\23\uffff" +
+					"\3\23\2\uffff\1\23\6\uffff\1\17\1\20\1\21\1\22\5\uffff\1\23" +
+					"\1\uffff\1\11",
+			"\2\23\1\uffff\1\13\1\12\2\23\1\14\1\15\1\16\1\23\23\uffff" +
+					"\3\23\2\uffff\1\23\6\uffff\1\17\1\20\1\21\1\22\5\uffff\1\23" +
+					"\1\uffff\1\11",
+			"\2\23\1\uffff\1\13\1\12\2\23\1\14\1\15\1\16\1\23\23\uffff" +
+					"\3\23\2\uffff\1\23\6\uffff\1\17\1\20\1\21\1\22\5\uffff\1\23" +
+					"\1\uffff\1\11",
+			"\2\23\1\uffff\1\13\1\12\2\23\1\14\1\15\1\16\1\23\23\uffff" +
+					"\3\23\2\uffff\1\23\6\uffff\1\17\1\20\1\21\1\22\5\uffff\1\23" +
+					"\1\uffff\1\11",
+			"\2\23\1\uffff\1\13\1\12\2\23\1\14\1\15\1\16\1\23\23\uffff" +
+					"\3\23\2\uffff\1\23\6\uffff\1\17\1\20\1\21\1\22\5\uffff\1\23" +
+					"\1\uffff\1\11",
+			"\2\23\1\uffff\1\13\1\12\2\23\1\14\1\15\1\16\1\23\23\uffff" +
+					"\3\23\2\uffff\1\23\6\uffff\1\17\1\20\1\21\1\22\5\uffff\1\23" +
+					"\1\uffff\1\11",
+			"\2\23\1\uffff\1\13\1\12\2\23\1\14\1\15\1\16\1\23\23\uffff" +
+					"\3\23\2\uffff\1\23\6\uffff\1\17\1\20\1\21\1\22\5\uffff\1\23" +
+					"\1\uffff\1\11",
+			""
+	};
+
+	static final short[] DFA17_eot = DFA.unpackEncodedString(DFA17_eotS);
+	static final short[] DFA17_eof = DFA.unpackEncodedString(DFA17_eofS);
+	static final char[] DFA17_min = DFA.unpackEncodedStringToUnsignedChars(DFA17_minS);
+	static final char[] DFA17_max = DFA.unpackEncodedStringToUnsignedChars(DFA17_maxS);
+	static final short[] DFA17_accept = DFA.unpackEncodedString(DFA17_acceptS);
+	static final short[] DFA17_special = DFA.unpackEncodedString(DFA17_specialS);
+	static final short[][] DFA17_transition;
+
+	static {
+		int numStates = DFA17_transitionS.length;
+		DFA17_transition = new short[numStates][];
+		for (int i = 0; i < numStates; i++) {
+			DFA17_transition[i] = org.antlr.runtime.DFA.unpackEncodedString(DFA17_transitionS[i]);
+		}
+	}
+
+	class DFA17 extends DFA {
+
+		public DFA17(BaseRecognizer recognizer) {
+			this.recognizer = recognizer;
+			this.decisionNumber = 17;
+			this.eot = DFA17_eot;
+			this.eof = DFA17_eof;
+			this.min = DFA17_min;
+			this.max = DFA17_max;
+			this.accept = DFA17_accept;
+			this.special = DFA17_special;
+			this.transition = DFA17_transition;
+		}
+
+		@Override
+		public String getDescription() {
+			return "1853:1: rule__Simple_selector__Alternatives_0_0 : ( ( ( rule__Simple_selector__ElementAssignment_0_0_0 ) ) | ( ( rule__Simple_selector__UniversalAssignment_0_0_1 ) ) );";
+		}
+	}
+
+	static final String DFA22_eotS =
+			"\25\uffff";
+	static final String DFA22_eofS =
+			"\5\uffff\20\3";
+	static final String DFA22_minS =
+			"\1\14\1\12\2\uffff\1\13\20\7";
+	static final String DFA22_maxS =
+			"\1\14\1\77\2\uffff\1\64\20\76";
+	static final String DFA22_acceptS =
+			"\2\uffff\1\2\1\1\21\uffff";
+	static final String DFA22_specialS =
+			"\25\uffff}>";
+	static final String[] DFA22_transitionS = {
+			"\1\1",
+			"\1\4\1\5\1\3\1\uffff\1\6\1\7\41\uffff\1\10\1\11\1\12\1\13" +
+					"\12\uffff\1\2",
+			"",
+			"",
+			"\1\5\2\uffff\1\6\1\7\41\uffff\1\10\1\11\1\12\1\13",
+			"\2\3\1\uffff\1\15\1\14\2\3\1\16\1\17\1\20\1\3\23\uffff\3\3" +
+					"\2\uffff\1\3\6\uffff\1\21\1\22\1\23\1\24\5\uffff\1\3\3\uffff" +
+					"\1\2",
+			"\2\3\1\uffff\1\15\1\14\2\3\1\16\1\17\1\20\1\3\23\uffff\3\3" +
+					"\2\uffff\1\3\6\uffff\1\21\1\22\1\23\1\24\5\uffff\1\3\3\uffff" +
+					"\1\2",
+			"\2\3\1\uffff\1\15\1\14\2\3\1\16\1\17\1\20\1\3\23\uffff\3\3" +
+					"\2\uffff\1\3\6\uffff\1\21\1\22\1\23\1\24\5\uffff\1\3\3\uffff" +
+					"\1\2",
+			"\2\3\1\uffff\1\15\1\14\2\3\1\16\1\17\1\20\1\3\23\uffff\3\3" +
+					"\2\uffff\1\3\6\uffff\1\21\1\22\1\23\1\24\5\uffff\1\3\3\uffff" +
+					"\1\2",
+			"\2\3\1\uffff\1\15\1\14\2\3\1\16\1\17\1\20\1\3\23\uffff\3\3" +
+					"\2\uffff\1\3\6\uffff\1\21\1\22\1\23\1\24\5\uffff\1\3\3\uffff" +
+					"\1\2",
+			"\2\3\1\uffff\1\15\1\14\2\3\1\16\1\17\1\20\1\3\23\uffff\3\3" +
+					"\2\uffff\1\3\6\uffff\1\21\1\22\1\23\1\24\5\uffff\1\3\3\uffff" +
+					"\1\2",
+			"\2\3\1\uffff\1\15\1\14\2\3\1\16\1\17\1\20\1\3\23\uffff\3\3" +
+					"\2\uffff\1\3\6\uffff\1\21\1\22\1\23\1\24\5\uffff\1\3\3\uffff" +
+					"\1\2",
+			"\2\3\1\uffff\1\15\1\14\2\3\1\16\1\17\1\20\1\3\23\uffff\3\3" +
+					"\2\uffff\1\3\6\uffff\1\21\1\22\1\23\1\24\5\uffff\1\3\3\uffff" +
+					"\1\2",
+			"\2\3\1\uffff\1\15\1\14\2\3\1\16\1\17\1\20\1\3\23\uffff\3\3" +
+					"\2\uffff\1\3\6\uffff\1\21\1\22\1\23\1\24\5\uffff\1\3\3\uffff" +
+					"\1\2",
+			"\2\3\1\uffff\1\15\1\14\2\3\1\16\1\17\1\20\1\3\23\uffff\3\3" +
+					"\2\uffff\1\3\6\uffff\1\21\1\22\1\23\1\24\5\uffff\1\3\3\uffff" +
+					"\1\2",
+			"\2\3\1\uffff\1\15\1\14\2\3\1\16\1\17\1\20\1\3\23\uffff\3\3" +
+					"\2\uffff\1\3\6\uffff\1\21\1\22\1\23\1\24\5\uffff\1\3\3\uffff" +
+					"\1\2",
+			"\2\3\1\uffff\1\15\1\14\2\3\1\16\1\17\1\20\1\3\23\uffff\3\3" +
+					"\2\uffff\1\3\6\uffff\1\21\1\22\1\23\1\24\5\uffff\1\3\3\uffff" +
+					"\1\2",
+			"\2\3\1\uffff\1\15\1\14\2\3\1\16\1\17\1\20\1\3\23\uffff\3\3" +
+					"\2\uffff\1\3\6\uffff\1\21\1\22\1\23\1\24\5\uffff\1\3\3\uffff" +
+					"\1\2",
+			"\2\3\1\uffff\1\15\1\14\2\3\1\16\1\17\1\20\1\3\23\uffff\3\3" +
+					"\2\uffff\1\3\6\uffff\1\21\1\22\1\23\1\24\5\uffff\1\3\3\uffff" +
+					"\1\2",
+			"\2\3\1\uffff\1\15\1\14\2\3\1\16\1\17\1\20\1\3\23\uffff\3\3" +
+					"\2\uffff\1\3\6\uffff\1\21\1\22\1\23\1\24\5\uffff\1\3\3\uffff" +
+					"\1\2",
+			"\2\3\1\uffff\1\15\1\14\2\3\1\16\1\17\1\20\1\3\23\uffff\3\3" +
+					"\2\uffff\1\3\6\uffff\1\21\1\22\1\23\1\24\5\uffff\1\3\3\uffff" +
+					"\1\2"
+	};
+
+	static final short[] DFA22_eot = DFA.unpackEncodedString(DFA22_eotS);
+	static final short[] DFA22_eof = DFA.unpackEncodedString(DFA22_eofS);
+	static final char[] DFA22_min = DFA.unpackEncodedStringToUnsignedChars(DFA22_minS);
+	static final char[] DFA22_max = DFA.unpackEncodedStringToUnsignedChars(DFA22_maxS);
+	static final short[] DFA22_accept = DFA.unpackEncodedString(DFA22_acceptS);
+	static final short[] DFA22_special = DFA.unpackEncodedString(DFA22_specialS);
+	static final short[][] DFA22_transition;
+
+	static {
+		int numStates = DFA22_transitionS.length;
+		DFA22_transition = new short[numStates][];
+		for (int i = 0; i < numStates; i++) {
+			DFA22_transition[i] = org.antlr.runtime.DFA.unpackEncodedString(DFA22_transitionS[i]);
+		}
+	}
+
+	class DFA22 extends DFA {
+
+		public DFA22(BaseRecognizer recognizer) {
+			this.recognizer = recognizer;
+			this.decisionNumber = 22;
+			this.eot = DFA22_eot;
+			this.eof = DFA22_eof;
+			this.min = DFA22_min;
+			this.max = DFA22_max;
+			this.accept = DFA22_accept;
+			this.special = DFA22_special;
+			this.transition = DFA22_transition;
+		}
+
+		@Override
+		public String getDescription() {
+			return "2009:1: rule__PseudoClassOrFunc__Alternatives : ( ( rulePseudoClass ) | ( rulePseudoClassFunction ) );";
+		}
+	}
+
+	static final String DFA58_eotS =
+			"\4\uffff";
+	static final String DFA58_eofS =
+			"\4\uffff";
+	static final String DFA58_minS =
+			"\2\10\2\uffff";
+	static final String DFA58_maxS =
+			"\2\72\2\uffff";
+	static final String DFA58_acceptS =
+			"\2\uffff\1\2\1\1";
+	static final String DFA58_specialS =
+			"\4\uffff}>";
+	static final String[] DFA58_transitionS = {
+			"\1\3\10\uffff\1\1\50\uffff\1\2",
+			"\1\3\10\uffff\1\1\50\uffff\1\2",
+			"",
+			""
+	};
+
+	static final short[] DFA58_eot = DFA.unpackEncodedString(DFA58_eotS);
+	static final short[] DFA58_eof = DFA.unpackEncodedString(DFA58_eofS);
+	static final char[] DFA58_min = DFA.unpackEncodedStringToUnsignedChars(DFA58_minS);
+	static final char[] DFA58_max = DFA.unpackEncodedStringToUnsignedChars(DFA58_maxS);
+	static final short[] DFA58_accept = DFA.unpackEncodedString(DFA58_acceptS);
+	static final short[] DFA58_special = DFA.unpackEncodedString(DFA58_specialS);
+	static final short[][] DFA58_transition;
+
+	static {
+		int numStates = DFA58_transitionS.length;
+		DFA58_transition = new short[numStates][];
+		for (int i = 0; i < numStates; i++) {
+			DFA58_transition[i] = org.antlr.runtime.DFA.unpackEncodedString(DFA58_transitionS[i]);
+		}
+	}
+
+	class DFA58 extends DFA {
+
+		public DFA58(BaseRecognizer recognizer) {
+			this.recognizer = recognizer;
+			this.decisionNumber = 58;
+			this.eot = DFA58_eot;
+			this.eof = DFA58_eof;
+			this.min = DFA58_min;
+			this.max = DFA58_max;
+			this.accept = DFA58_accept;
+			this.special = DFA58_special;
+			this.transition = DFA58_transition;
+		}
+
+		@Override
+		public String getDescription() {
+			return "()* loopback of 4494:1: ( rule__Ruleset__Group_1__0 )*";
+		}
+	}
+
+	static final String DFA64_eotS =
+			"\5\uffff";
+	static final String DFA64_eofS =
+			"\1\3\4\uffff";
+	static final String DFA64_minS =
+			"\1\7\1\uffff\1\7\1\uffff\1\7";
+	static final String DFA64_maxS =
+			"\1\72\1\uffff\1\74\1\uffff\1\74";
+	static final String DFA64_acceptS =
+			"\1\uffff\1\1\1\uffff\1\2\1\uffff";
+	static final String DFA64_specialS =
+			"\5\uffff}>";
+	static final String[] DFA64_transitionS = {
+			"\1\1\1\3\10\uffff\1\2\23\uffff\2\1\23\uffff\1\3",
+			"",
+			"\1\1\1\3\1\uffff\6\1\1\uffff\1\4\22\uffff\4\1\2\uffff\1\1" +
+					"\6\uffff\4\1\5\uffff\1\3\1\uffff\1\1",
+			"",
+			"\1\1\1\3\1\uffff\6\1\1\uffff\1\4\22\uffff\4\1\2\uffff\1\1" +
+					"\6\uffff\4\1\5\uffff\1\3\1\uffff\1\1"
+	};
+
+	static final short[] DFA64_eot = DFA.unpackEncodedString(DFA64_eotS);
+	static final short[] DFA64_eof = DFA.unpackEncodedString(DFA64_eofS);
+	static final char[] DFA64_min = DFA.unpackEncodedStringToUnsignedChars(DFA64_minS);
+	static final char[] DFA64_max = DFA.unpackEncodedStringToUnsignedChars(DFA64_maxS);
+	static final short[] DFA64_accept = DFA.unpackEncodedString(DFA64_acceptS);
+	static final short[] DFA64_special = DFA.unpackEncodedString(DFA64_specialS);
+	static final short[][] DFA64_transition;
+
+	static {
+		int numStates = DFA64_transitionS.length;
+		DFA64_transition = new short[numStates][];
+		for (int i = 0; i < numStates; i++) {
+			DFA64_transition[i] = org.antlr.runtime.DFA.unpackEncodedString(DFA64_transitionS[i]);
+		}
+	}
+
+	class DFA64 extends DFA {
+
+		public DFA64(BaseRecognizer recognizer) {
+			this.recognizer = recognizer;
+			this.decisionNumber = 64;
+			this.eot = DFA64_eot;
+			this.eof = DFA64_eof;
+			this.min = DFA64_min;
+			this.max = DFA64_max;
+			this.accept = DFA64_accept;
+			this.special = DFA64_special;
+			this.transition = DFA64_transition;
+		}
+
+		@Override
+		public String getDescription() {
+			return "4931:1: ( rule__Selector__Alternatives_1 )?";
+		}
+	}
+
+	static final String DFA83_eotS =
+			"\14\uffff";
+	static final String DFA83_eofS =
+			"\1\1\13\uffff";
+	static final String DFA83_minS =
+			"\1\4\1\uffff\11\0\1\uffff";
+	static final String DFA83_maxS =
+			"\1\100\1\uffff\11\0\1\uffff";
+	static final String DFA83_acceptS =
+			"\1\uffff\1\2\11\uffff\1\1";
+	static final String DFA83_specialS =
+			"\2\uffff\1\5\1\4\1\7\1\6\1\10\1\0\1\2\1\1\1\3\1\uffff}>";
+	static final String[] DFA83_transitionS = {
+			"\6\1\1\2\1\3\2\1\1\4\1\5\1\12\2\1\15\uffff\4\1\1\uffff\3\1" +
+					"\2\uffff\2\1\4\uffff\1\1\1\6\1\7\1\10\1\11\5\uffff\5\1\1\uffff" +
+					"\1\1",
+			"",
+			"\1\uffff",
+			"\1\uffff",
+			"\1\uffff",
+			"\1\uffff",
+			"\1\uffff",
+			"\1\uffff",
+			"\1\uffff",
+			"\1\uffff",
+			"\1\uffff",
+			""
+	};
+
+	static final short[] DFA83_eot = DFA.unpackEncodedString(DFA83_eotS);
+	static final short[] DFA83_eof = DFA.unpackEncodedString(DFA83_eofS);
+	static final char[] DFA83_min = DFA.unpackEncodedStringToUnsignedChars(DFA83_minS);
+	static final char[] DFA83_max = DFA.unpackEncodedStringToUnsignedChars(DFA83_maxS);
+	static final short[] DFA83_accept = DFA.unpackEncodedString(DFA83_acceptS);
+	static final short[] DFA83_special = DFA.unpackEncodedString(DFA83_specialS);
+	static final short[][] DFA83_transition;
+
+	static {
+		int numStates = DFA83_transitionS.length;
+		DFA83_transition = new short[numStates][];
+		for (int i = 0; i < numStates; i++) {
+			DFA83_transition[i] = org.antlr.runtime.DFA.unpackEncodedString(DFA83_transitionS[i]);
+		}
+	}
+
+	class DFA83 extends DFA {
+
+		public DFA83(BaseRecognizer recognizer) {
+			this.recognizer = recognizer;
+			this.decisionNumber = 83;
+			this.eot = DFA83_eot;
+			this.eof = DFA83_eof;
+			this.min = DFA83_min;
+			this.max = DFA83_max;
+			this.accept = DFA83_accept;
+			this.special = DFA83_special;
+			this.transition = DFA83_transition;
+		}
+
+		@Override
+		public String getDescription() {
+			return "()* loopback of 7549:1: ( rule__Identifier__Group_2__0 )*";
+		}
+
+		@Override
+		public int specialStateTransition(int s, IntStream _input) throws NoViableAltException {
+			TokenStream input = (TokenStream) _input;
+			int _s = s;
+			switch (s) {
+			case 0:
+				int LA83_7 = input.LA(1);
+
+
+				int index83_7 = input.index();
+				input.rewind();
+				s = -1;
+				if ((synpred134_InternalCSS())) {
+					s = 11;
+				}
+
+				else if ((true)) {
+					s = 1;
+				}
+
+
+				input.seek(index83_7);
+				if (s >= 0) {
+					return s;
+				}
+				break;
+			case 1:
+				int LA83_9 = input.LA(1);
+
+
+				int index83_9 = input.index();
+				input.rewind();
+				s = -1;
+				if ((synpred134_InternalCSS())) {
+					s = 11;
+				}
+
+				else if ((true)) {
+					s = 1;
+				}
+
+
+				input.seek(index83_9);
+				if (s >= 0) {
+					return s;
+				}
+				break;
+			case 2:
+				int LA83_8 = input.LA(1);
+
+
+				int index83_8 = input.index();
+				input.rewind();
+				s = -1;
+				if ((synpred134_InternalCSS())) {
+					s = 11;
+				}
+
+				else if ((true)) {
+					s = 1;
+				}
+
+
+				input.seek(index83_8);
+				if (s >= 0) {
+					return s;
+				}
+				break;
+			case 3:
+				int LA83_10 = input.LA(1);
+
+
+				int index83_10 = input.index();
+				input.rewind();
+				s = -1;
+				if ((synpred134_InternalCSS())) {
+					s = 11;
+				}
+
+				else if ((true)) {
+					s = 1;
+				}
+
+
+				input.seek(index83_10);
+				if (s >= 0) {
+					return s;
+				}
+				break;
+			case 4:
+				int LA83_3 = input.LA(1);
+
+
+				int index83_3 = input.index();
+				input.rewind();
+				s = -1;
+				if ((synpred134_InternalCSS())) {
+					s = 11;
+				}
+
+				else if ((true)) {
+					s = 1;
+				}
+
+
+				input.seek(index83_3);
+				if (s >= 0) {
+					return s;
+				}
+				break;
+			case 5:
+				int LA83_2 = input.LA(1);
+
+
+				int index83_2 = input.index();
+				input.rewind();
+				s = -1;
+				if ((synpred134_InternalCSS())) {
+					s = 11;
+				}
+
+				else if ((true)) {
+					s = 1;
+				}
+
+
+				input.seek(index83_2);
+				if (s >= 0) {
+					return s;
+				}
+				break;
+			case 6:
+				int LA83_5 = input.LA(1);
+
+
+				int index83_5 = input.index();
+				input.rewind();
+				s = -1;
+				if ((synpred134_InternalCSS())) {
+					s = 11;
+				}
+
+				else if ((true)) {
+					s = 1;
+				}
+
+
+				input.seek(index83_5);
+				if (s >= 0) {
+					return s;
+				}
+				break;
+			case 7:
+				int LA83_4 = input.LA(1);
+
+
+				int index83_4 = input.index();
+				input.rewind();
+				s = -1;
+				if ((synpred134_InternalCSS())) {
+					s = 11;
+				}
+
+				else if ((true)) {
+					s = 1;
+				}
+
+
+				input.seek(index83_4);
+				if (s >= 0) {
+					return s;
+				}
+				break;
+			case 8:
+				int LA83_6 = input.LA(1);
+
+
+				int index83_6 = input.index();
+				input.rewind();
+				s = -1;
+				if ((synpred134_InternalCSS())) {
+					s = 11;
+				}
+
+				else if ((true)) {
+					s = 1;
+				}
+
+
+				input.seek(index83_6);
+				if (s >= 0) {
+					return s;
+				}
+				break;
+			}
+			if (state.backtracking > 0) {
+				state.failed = true;
+				return -1;
+			}
+			NoViableAltException nvae =
+					new NoViableAltException(getDescription(), 83, _s, input);
+			error(nvae);
+			throw nvae;
+		}
+	}
+
+
+	public static final BitSet FOLLOW_rulestylesheet_in_entryRulestylesheet67 = new BitSet(new long[] { 0x0000000000000000L });
+	public static final BitSet FOLLOW_EOF_in_entryRulestylesheet74 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Stylesheet__Group__0_in_rulestylesheet100 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rulecharset_in_entryRulecharset127 = new BitSet(new long[] { 0x0000000000000000L });
+	public static final BitSet FOLLOW_EOF_in_entryRulecharset134 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Charset__Group__0_in_rulecharset160 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_ruleimportExpression_in_entryRuleimportExpression187 = new BitSet(new long[] { 0x0000000000000000L });
+	public static final BitSet FOLLOW_EOF_in_entryRuleimportExpression194 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__ImportExpression__Group__0_in_ruleimportExpression220 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rulepage_in_entryRulepage247 = new BitSet(new long[] { 0x0000000000000000L });
+	public static final BitSet FOLLOW_EOF_in_entryRulepage254 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Page__Group__0_in_rulepage280 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rulepseudo_page_in_entryRulepseudo_page307 = new BitSet(new long[] { 0x0000000000000000L });
+	public static final BitSet FOLLOW_EOF_in_entryRulepseudo_page314 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Pseudo_page__Group__0_in_rulepseudo_page340 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rulemedia_in_entryRulemedia367 = new BitSet(new long[] { 0x0000000000000000L });
+	public static final BitSet FOLLOW_EOF_in_entryRulemedia374 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Media__Group__0_in_rulemedia400 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rulemedia_list_in_entryRulemedia_list427 = new BitSet(new long[] { 0x0000000000000000L });
+	public static final BitSet FOLLOW_EOF_in_entryRulemedia_list434 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Media_list__Group__0_in_rulemedia_list460 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rulemedium_in_entryRulemedium487 = new BitSet(new long[] { 0x0000000000000000L });
+	public static final BitSet FOLLOW_EOF_in_entryRulemedium494 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_ruleIdentifier_in_rulemedium520 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rulefont_face_in_entryRulefont_face546 = new BitSet(new long[] { 0x0000000000000000L });
+	public static final BitSet FOLLOW_EOF_in_entryRulefont_face553 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Font_face__Group__0_in_rulefont_face579 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rulekeyframes_in_entryRulekeyframes606 = new BitSet(new long[] { 0x0000000000000000L });
+	public static final BitSet FOLLOW_EOF_in_entryRulekeyframes613 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Keyframes__Group__0_in_rulekeyframes639 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rulekeyframe_selector_in_entryRulekeyframe_selector666 = new BitSet(new long[] { 0x0000000000000000L });
+	public static final BitSet FOLLOW_EOF_in_entryRulekeyframe_selector673 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Keyframe_selector__Group__0_in_rulekeyframe_selector699 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_ruleruleset_in_entryRuleruleset726 = new BitSet(new long[] { 0x0000000000000000L });
+	public static final BitSet FOLLOW_EOF_in_entryRuleruleset733 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Ruleset__Group__0_in_ruleruleset759 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_ruleselector_in_entryRuleselector791 = new BitSet(new long[] { 0x0000000000000000L });
+	public static final BitSet FOLLOW_EOF_in_entryRuleselector798 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Selector__Group__0_in_ruleselector828 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_ruleSimpleSelectorForNegation_in_entryRuleSimpleSelectorForNegation855 = new BitSet(new long[] { 0x0000000000000000L });
+	public static final BitSet FOLLOW_EOF_in_entryRuleSimpleSelectorForNegation862 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__SimpleSelectorForNegation__Alternatives_in_ruleSimpleSelectorForNegation888 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_ruleSubSelectorForNegation_in_entryRuleSubSelectorForNegation915 = new BitSet(new long[] { 0x0000000000000000L });
+	public static final BitSet FOLLOW_EOF_in_entryRuleSubSelectorForNegation922 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__SubSelectorForNegation__Alternatives_in_ruleSubSelectorForNegation948 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rulesimple_selector_in_entryRulesimple_selector980 = new BitSet(new long[] { 0x0000000000000000L });
+	public static final BitSet FOLLOW_EOF_in_entryRulesimple_selector987 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Simple_selector__Alternatives_in_rulesimple_selector1017 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_ruleSubSelector_in_entryRuleSubSelector1044 = new BitSet(new long[] { 0x0000000000000000L });
+	public static final BitSet FOLLOW_EOF_in_entryRuleSubSelector1051 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__SubSelector__Alternatives_in_ruleSubSelector1077 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_ruleAttributeSelector_in_entryRuleAttributeSelector1104 = new BitSet(new long[] { 0x0000000000000000L });
+	public static final BitSet FOLLOW_EOF_in_entryRuleAttributeSelector1111 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__AttributeSelector__Group__0_in_ruleAttributeSelector1137 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_ruleClassSelector_in_entryRuleClassSelector1164 = new BitSet(new long[] { 0x0000000000000000L });
+	public static final BitSet FOLLOW_EOF_in_entryRuleClassSelector1171 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__ClassSelector__Group__0_in_ruleClassSelector1197 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_ruleElementSelector_in_entryRuleElementSelector1224 = new BitSet(new long[] { 0x0000000000000000L });
+	public static final BitSet FOLLOW_EOF_in_entryRuleElementSelector1231 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__ElementSelector__Group__0_in_ruleElementSelector1257 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_ruleUniversalSelector_in_entryRuleUniversalSelector1284 = new BitSet(new long[] { 0x0000000000000000L });
+	public static final BitSet FOLLOW_EOF_in_entryRuleUniversalSelector1291 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__UniversalSelector__Group__0_in_ruleUniversalSelector1317 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_ruleIdSelector_in_entryRuleIdSelector1344 = new BitSet(new long[] { 0x0000000000000000L });
+	public static final BitSet FOLLOW_EOF_in_entryRuleIdSelector1351 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__IdSelector__Group__0_in_ruleIdSelector1377 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rulecss_namespace_prefix_in_entryRulecss_namespace_prefix1404 = new BitSet(new long[] { 0x0000000000000000L });
+	public static final BitSet FOLLOW_EOF_in_entryRulecss_namespace_prefix1411 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Css_namespace_prefix__Group__0_in_rulecss_namespace_prefix1437 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rulecss_declaration_in_entryRulecss_declaration1469 = new BitSet(new long[] { 0x0000000000000000L });
+	public static final BitSet FOLLOW_EOF_in_entryRulecss_declaration1476 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Css_declaration__Group__0_in_rulecss_declaration1506 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rulecss_property_in_entryRulecss_property1533 = new BitSet(new long[] { 0x0000000000000000L });
+	public static final BitSet FOLLOW_EOF_in_entryRulecss_property1540 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Css_property__Group__0_in_rulecss_property1566 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_ruleValidPropertyIdent_in_entryRuleValidPropertyIdent1593 = new BitSet(new long[] { 0x0000000000000000L });
+	public static final BitSet FOLLOW_EOF_in_entryRuleValidPropertyIdent1600 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_ruleIdentifier_in_ruleValidPropertyIdent1626 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rulePseudoClassOrFunc_in_entryRulePseudoClassOrFunc1652 = new BitSet(new long[] { 0x0000000000000000L });
+	public static final BitSet FOLLOW_EOF_in_entryRulePseudoClassOrFunc1659 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__PseudoClassOrFunc__Alternatives_in_rulePseudoClassOrFunc1685 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rulePseudoClass_in_entryRulePseudoClass1712 = new BitSet(new long[] { 0x0000000000000000L });
+	public static final BitSet FOLLOW_EOF_in_entryRulePseudoClass1719 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__PseudoClass__Group__0_in_rulePseudoClass1745 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rulePseudoClassName_in_entryRulePseudoClassName1772 = new BitSet(new long[] { 0x0000000000000000L });
+	public static final BitSet FOLLOW_EOF_in_entryRulePseudoClassName1779 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__PseudoClassName__NameAssignment_in_rulePseudoClassName1805 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rulePseudoClassFunction_in_entryRulePseudoClassFunction1832 = new BitSet(new long[] { 0x0000000000000000L });
+	public static final BitSet FOLLOW_EOF_in_entryRulePseudoClassFunction1839 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__PseudoClassFunction__Alternatives_in_rulePseudoClassFunction1865 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_ruleNotFunctionCall_in_entryRuleNotFunctionCall1897 = new BitSet(new long[] { 0x0000000000000000L });
+	public static final BitSet FOLLOW_EOF_in_entryRuleNotFunctionCall1904 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__NotFunctionCall__Group__0_in_ruleNotFunctionCall1934 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rulecombinator_in_entryRulecombinator1961 = new BitSet(new long[] { 0x0000000000000000L });
+	public static final BitSet FOLLOW_EOF_in_entryRulecombinator1968 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Combinator__Alternatives_in_rulecombinator1994 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_ruleSymbolTok_in_entryRuleSymbolTok2025 = new BitSet(new long[] { 0x0000000000000000L });
+	public static final BitSet FOLLOW_EOF_in_entryRuleSymbolTok2032 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__SymbolTok__Group__0_in_ruleSymbolTok2058 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_ruleWSTok_in_entryRuleWSTok2085 = new BitSet(new long[] { 0x0000000000000000L });
+	public static final BitSet FOLLOW_EOF_in_entryRuleWSTok2092 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__WSTok__Group__0_in_ruleWSTok2118 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_ruleStringTok_in_entryRuleStringTok2145 = new BitSet(new long[] { 0x0000000000000000L });
+	public static final BitSet FOLLOW_EOF_in_entryRuleStringTok2152 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__StringTok__Group__0_in_ruleStringTok2178 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_ruleNumberTok_in_entryRuleNumberTok2210 = new BitSet(new long[] { 0x0000000000000000L });
+	public static final BitSet FOLLOW_EOF_in_entryRuleNumberTok2217 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__NumberTok__Group__0_in_ruleNumberTok2247 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_ruleUrlTok_in_entryRuleUrlTok2274 = new BitSet(new long[] { 0x0000000000000000L });
+	public static final BitSet FOLLOW_EOF_in_entryRuleUrlTok2281 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__UrlTok__Group__0_in_ruleUrlTok2307 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_ruleColorTok_in_entryRuleColorTok2339 = new BitSet(new long[] { 0x0000000000000000L });
+	public static final BitSet FOLLOW_EOF_in_entryRuleColorTok2346 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__ColorTok__Group__0_in_ruleColorTok2376 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_ruleIdentifierOrFuncTok_in_entryRuleIdentifierOrFuncTok2408 = new BitSet(new long[] { 0x0000000000000000L });
+	public static final BitSet FOLLOW_EOF_in_entryRuleIdentifierOrFuncTok2415 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__IdentifierOrFuncTok__Group__0_in_ruleIdentifierOrFuncTok2445 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_ruleCssTok_in_entryRuleCssTok2477 = new BitSet(new long[] { 0x0000000000000000L });
+	public static final BitSet FOLLOW_EOF_in_entryRuleCssTok2484 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__CssTok__Alternatives_in_ruleCssTok2514 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_ruleURLType_in_entryRuleURLType2546 = new BitSet(new long[] { 0x0000000000000000L });
+	public static final BitSet FOLLOW_EOF_in_entryRuleURLType2553 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__URLType__Group__0_in_ruleURLType2583 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_ruleValidURLSymbol_in_entryRuleValidURLSymbol2610 = new BitSet(new long[] { 0x0000000000000000L });
+	public static final BitSet FOLLOW_EOF_in_entryRuleValidURLSymbol2617 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__ValidURLSymbol__Alternatives_in_ruleValidURLSymbol2643 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_ruleKeywordHack_in_entryRuleKeywordHack2670 = new BitSet(new long[] { 0x0000000000000000L });
+	public static final BitSet FOLLOW_EOF_in_entryRuleKeywordHack2677 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__KeywordHack__Alternatives_in_ruleKeywordHack2703 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_ruleValidURL_in_entryRuleValidURL2735 = new BitSet(new long[] { 0x0000000000000000L });
+	public static final BitSet FOLLOW_EOF_in_entryRuleValidURL2742 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__ValidURL__Alternatives_in_ruleValidURL2772 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_ruleIdentifier_in_entryRuleIdentifier2804 = new BitSet(new long[] { 0x0000000000000000L });
+	public static final BitSet FOLLOW_EOF_in_entryRuleIdentifier2811 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Identifier__Group__0_in_ruleIdentifier2841 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_ruleNum_in_entryRuleNum2873 = new BitSet(new long[] { 0x0000000000000000L });
+	public static final BitSet FOLLOW_EOF_in_entryRuleNum2880 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Num__Group__0_in_ruleNum2910 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_ruleHex_in_entryRuleHex2937 = new BitSet(new long[] { 0x0000000000000000L });
+	public static final BitSet FOLLOW_EOF_in_entryRuleHex2944 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Hex__Group__0_in_ruleHex2970 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Stylesheet__RulesetAssignment_2_0_in_rule__Stylesheet__Alternatives_23006 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Stylesheet__MediaAssignment_2_1_in_rule__Stylesheet__Alternatives_23024 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Stylesheet__PageAssignment_2_2_in_rule__Stylesheet__Alternatives_23042 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Stylesheet__Font_faceAssignment_2_3_in_rule__Stylesheet__Alternatives_23060 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Stylesheet__KeyframesAssignment_2_4_in_rule__Stylesheet__Alternatives_23078 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_20_in_rule__Charset__Alternatives_03112 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_21_in_rule__Charset__Alternatives_03132 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_22_in_rule__ImportExpression__Alternatives_03167 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_23_in_rule__ImportExpression__Alternatives_03187 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__ImportExpression__ValueAssignment_1_0_in_rule__ImportExpression__Alternatives_13221 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__ImportExpression__Group_1_1__0_in_rule__ImportExpression__Alternatives_13239 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_24_in_rule__Page__Alternatives_13273 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_25_in_rule__Page__Alternatives_13293 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_26_in_rule__Media__Alternatives_03328 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_27_in_rule__Media__Alternatives_03348 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_28_in_rule__Font_face__Alternatives_13383 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_29_in_rule__Font_face__Alternatives_13403 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_30_in_rule__Keyframes__Alternatives_13438 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_31_in_rule__Keyframes__Alternatives_13458 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Keyframe_selector__TypeAssignment_0_0_in_rule__Keyframe_selector__Alternatives_03492 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Keyframe_selector__Group_0_1__0_in_rule__Keyframe_selector__Alternatives_03510 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Selector__Group_1_0__0_in_rule__Selector__Alternatives_13543 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Selector__Group_1_1__0_in_rule__Selector__Alternatives_13561 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__SimpleSelectorForNegation__Group_0__0_in_rule__SimpleSelectorForNegation__Alternatives3594 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__SimpleSelectorForNegation__SubSelectorsAssignment_1_in_rule__SimpleSelectorForNegation__Alternatives3614 = new BitSet(new long[] { 0x0000048000003002L });
+	public static final BitSet FOLLOW_rule__SimpleSelectorForNegation__SubSelectorsAssignment_1_in_rule__SimpleSelectorForNegation__Alternatives3626 = new BitSet(new long[] { 0x0000048000003002L });
+	public static final BitSet FOLLOW_rule__SimpleSelectorForNegation__ElementAssignment_0_0_0_in_rule__SimpleSelectorForNegation__Alternatives_0_03662 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__SimpleSelectorForNegation__UniversalAssignment_0_0_1_in_rule__SimpleSelectorForNegation__Alternatives_0_03680 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_ruleIdSelector_in_rule__SubSelectorForNegation__Alternatives3713 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_ruleClassSelector_in_rule__SubSelectorForNegation__Alternatives3730 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_ruleAttributeSelector_in_rule__SubSelectorForNegation__Alternatives3747 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rulePseudoClass_in_rule__SubSelectorForNegation__Alternatives3764 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Simple_selector__Group_0__0_in_rule__Simple_selector__Alternatives3796 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Simple_selector__SubSelectorsAssignment_1_in_rule__Simple_selector__Alternatives3816 = new BitSet(new long[] { 0x0000048000003002L });
+	public static final BitSet FOLLOW_rule__Simple_selector__SubSelectorsAssignment_1_in_rule__Simple_selector__Alternatives3828 = new BitSet(new long[] { 0x0000048000003002L });
+	public static final BitSet FOLLOW_rule__Simple_selector__ElementAssignment_0_0_0_in_rule__Simple_selector__Alternatives_0_03864 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Simple_selector__UniversalAssignment_0_0_1_in_rule__Simple_selector__Alternatives_0_03882 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_ruleIdSelector_in_rule__SubSelector__Alternatives3915 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_ruleClassSelector_in_rule__SubSelector__Alternatives3932 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_ruleAttributeSelector_in_rule__SubSelector__Alternatives3949 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rulePseudoClassOrFunc_in_rule__SubSelector__Alternatives3966 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_32_in_rule__AttributeSelector__OpAlternatives_3_0_03999 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_33_in_rule__AttributeSelector__OpAlternatives_3_0_04019 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_34_in_rule__AttributeSelector__OpAlternatives_3_0_04039 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_35_in_rule__AttributeSelector__OpAlternatives_3_0_04059 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_RULE_INCLUDES_in_rule__AttributeSelector__OpAlternatives_3_0_04078 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_RULE_DASHMATCH_in_rule__AttributeSelector__OpAlternatives_3_0_04095 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_ruleIdentifier_in_rule__AttributeSelector__ValueAlternatives_3_1_04127 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_RULE_CSSSTRING_in_rule__AttributeSelector__ValueAlternatives_3_1_04144 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_ruleIdentifier_in_rule__Css_namespace_prefix__Alternatives_04176 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_36_in_rule__Css_namespace_prefix__Alternatives_04194 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rulePseudoClass_in_rule__PseudoClassOrFunc__Alternatives4228 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rulePseudoClassFunction_in_rule__PseudoClassOrFunc__Alternatives4245 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__PseudoClassFunction__Group_0__0_in_rule__PseudoClassFunction__Alternatives4277 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__PseudoClassFunction__Group_1__0_in_rule__PseudoClassFunction__Alternatives4295 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_RULE_PLUS_in_rule__Combinator__Alternatives4328 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_37_in_rule__Combinator__Alternatives4346 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_38_in_rule__Combinator__Alternatives4366 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_RULE_COMMA_in_rule__SymbolTok__SymbolAlternatives_1_04402 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_RULE_PERCENT_in_rule__SymbolTok__SymbolAlternatives_1_04419 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_ruleIdentifierOrFuncTok_in_rule__CssTok__Alternatives4451 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_ruleSymbolTok_in_rule__CssTok__Alternatives4468 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_ruleWSTok_in_rule__CssTok__Alternatives4485 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_ruleStringTok_in_rule__CssTok__Alternatives4502 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_ruleNumberTok_in_rule__CssTok__Alternatives4519 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_ruleUrlTok_in_rule__CssTok__Alternatives4536 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_ruleColorTok_in_rule__CssTok__Alternatives4553 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_RULE_DASH_in_rule__ValidURLSymbol__Alternatives4585 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_39_in_rule__ValidURLSymbol__Alternatives4603 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_RULE_UNDERSCORE_in_rule__ValidURLSymbol__Alternatives4622 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_38_in_rule__ValidURLSymbol__Alternatives4640 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_RULE_COLON_in_rule__ValidURLSymbol__Alternatives4659 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_40_in_rule__ValidURLSymbol__Alternatives4677 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_41_in_rule__ValidURLSymbol__Alternatives4697 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_RULE_HASHMARK_in_rule__ValidURLSymbol__Alternatives4716 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_42_in_rule__ValidURLSymbol__Alternatives4734 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_43_in_rule__ValidURLSymbol__Alternatives4754 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_44_in_rule__ValidURLSymbol__Alternatives4774 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_45_in_rule__ValidURLSymbol__Alternatives4794 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_46_in_rule__ValidURLSymbol__Alternatives4814 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_47_in_rule__ValidURLSymbol__Alternatives4834 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_36_in_rule__ValidURLSymbol__Alternatives4854 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_RULE_PLUS_in_rule__ValidURLSymbol__Alternatives4873 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_RULE_COMMA_in_rule__ValidURLSymbol__Alternatives4890 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_48_in_rule__ValidURLSymbol__Alternatives4908 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__ValidURLSymbol__Group_18__0_in_rule__ValidURLSymbol__Alternatives4927 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_49_in_rule__KeywordHack__Alternatives4961 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_50_in_rule__KeywordHack__Alternatives4981 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_51_in_rule__KeywordHack__Alternatives5001 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_52_in_rule__KeywordHack__Alternatives5021 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_RULE_CSSSTRING_in_rule__ValidURL__Alternatives5055 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__ValidURL__Alternatives_1_in_rule__ValidURL__Alternatives5074 = new BitSet(new long[] { 0x03FFFFD80001FF82L });
+	public static final BitSet FOLLOW_rule__ValidURL__Alternatives_1_in_rule__ValidURL__Alternatives5086 = new BitSet(new long[] { 0x03FFFFD80001FF82L });
+	public static final BitSet FOLLOW_ruleValidURLSymbol_in_rule__ValidURL__Alternatives_15122 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_ruleKeywordHack_in_rule__ValidURL__Alternatives_15139 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_RULE_ONE_HEX_LETTER_in_rule__ValidURL__Alternatives_15156 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_RULE_ONE_NON_HEX_LETTER_in_rule__ValidURL__Alternatives_15173 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_RULE_ONE_INT_in_rule__ValidURL__Alternatives_15190 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_53_in_rule__ValidURL__Alternatives_15208 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_54_in_rule__ValidURL__Alternatives_15228 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_55_in_rule__ValidURL__Alternatives_15248 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_56_in_rule__ValidURL__Alternatives_15268 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_57_in_rule__ValidURL__Alternatives_15288 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__ValidURL__Group_1_10__0_in_rule__ValidURL__Alternatives_15307 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_RULE_ONE_INT_in_rule__ValidURL__Alternatives_1_10_15340 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_RULE_ONE_HEX_LETTER_in_rule__ValidURL__Alternatives_1_10_15357 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_RULE_ONE_INT_in_rule__ValidURL__Alternatives_1_10_25389 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_RULE_ONE_HEX_LETTER_in_rule__ValidURL__Alternatives_1_10_25406 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_RULE_UNDERSCORE_in_rule__Identifier__Alternatives_15438 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_RULE_ONE_HEX_LETTER_in_rule__Identifier__Alternatives_15455 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_RULE_ONE_NON_HEX_LETTER_in_rule__Identifier__Alternatives_15472 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_ruleKeywordHack_in_rule__Identifier__Alternatives_15489 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_RULE_UNDERSCORE_in_rule__Identifier__Alternatives_2_05521 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_RULE_DASH_in_rule__Identifier__Alternatives_2_05538 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_RULE_ONE_HEX_LETTER_in_rule__Identifier__Alternatives_2_05555 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_RULE_ONE_NON_HEX_LETTER_in_rule__Identifier__Alternatives_2_05572 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_RULE_ONE_INT_in_rule__Identifier__Alternatives_2_05589 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_ruleKeywordHack_in_rule__Identifier__Alternatives_2_05606 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_RULE_PLUS_in_rule__Num__Alternatives_05638 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_RULE_DASH_in_rule__Num__Alternatives_05655 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Num__Group_1_0__0_in_rule__Num__Alternatives_15687 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Num__Group_1_1__0_in_rule__Num__Alternatives_15705 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_RULE_ONE_INT_in_rule__Hex__Alternatives_1_05738 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_RULE_ONE_HEX_LETTER_in_rule__Hex__Alternatives_1_05755 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Stylesheet__Group__0__Impl_in_rule__Stylesheet__Group__05785 = new BitSet(new long[] { 0x101E0490FFC0FC00L });
+	public static final BitSet FOLLOW_rule__Stylesheet__Group__1_in_rule__Stylesheet__Group__05788 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Stylesheet__CharsetAssignment_0_in_rule__Stylesheet__Group__0__Impl5815 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Stylesheet__Group__1__Impl_in_rule__Stylesheet__Group__15846 = new BitSet(new long[] { 0x101E0490FFC0FC00L });
+	public static final BitSet FOLLOW_rule__Stylesheet__Group__2_in_rule__Stylesheet__Group__15849 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Stylesheet__ImportsAssignment_1_in_rule__Stylesheet__Group__1__Impl5876 = new BitSet(new long[] { 0x0000000000C00002L });
+	public static final BitSet FOLLOW_rule__Stylesheet__Group__2__Impl_in_rule__Stylesheet__Group__25907 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Stylesheet__Alternatives_2_in_rule__Stylesheet__Group__2__Impl5934 = new BitSet(new long[] { 0x101E0490FF00FC02L });
+	public static final BitSet FOLLOW_rule__Charset__Group__0__Impl_in_rule__Charset__Group__05971 = new BitSet(new long[] { 0x0000000000000040L });
+	public static final BitSet FOLLOW_rule__Charset__Group__1_in_rule__Charset__Group__05974 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Charset__Alternatives_0_in_rule__Charset__Group__0__Impl6001 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Charset__Group__1__Impl_in_rule__Charset__Group__16031 = new BitSet(new long[] { 0x0001000000000000L });
+	public static final BitSet FOLLOW_rule__Charset__Group__2_in_rule__Charset__Group__16034 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Charset__CharsetAssignment_1_in_rule__Charset__Group__1__Impl6061 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Charset__Group__2__Impl_in_rule__Charset__Group__26091 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_48_in_rule__Charset__Group__2__Impl6119 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__ImportExpression__Group__0__Impl_in_rule__ImportExpression__Group__06156 = new BitSet(new long[] { 0x0000000000000040L, 0x0000000000000001L });
+	public static final BitSet FOLLOW_rule__ImportExpression__Group__1_in_rule__ImportExpression__Group__06159 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__ImportExpression__Alternatives_0_in_rule__ImportExpression__Group__0__Impl6186 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__ImportExpression__Group__1__Impl_in_rule__ImportExpression__Group__16216 = new BitSet(new long[] { 0x0001000000000000L });
+	public static final BitSet FOLLOW_rule__ImportExpression__Group__2_in_rule__ImportExpression__Group__16219 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__ImportExpression__Alternatives_1_in_rule__ImportExpression__Group__1__Impl6246 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__ImportExpression__Group__2__Impl_in_rule__ImportExpression__Group__26276 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_48_in_rule__ImportExpression__Group__2__Impl6304 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__ImportExpression__Group_1_1__0__Impl_in_rule__ImportExpression__Group_1_1__06341 = new BitSet(new long[] { 0x001E00000000CC00L });
+	public static final BitSet FOLLOW_rule__ImportExpression__Group_1_1__1_in_rule__ImportExpression__Group_1_1__06344 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_ruleURLType_in_rule__ImportExpression__Group_1_1__0__Impl6371 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__ImportExpression__Group_1_1__1__Impl_in_rule__ImportExpression__Group_1_1__16400 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__ImportExpression__MediaListAssignment_1_1_1_in_rule__ImportExpression__Group_1_1__1__Impl6427 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Page__Group__0__Impl_in_rule__Page__Group__06462 = new BitSet(new long[] { 0x0000000003000000L });
+	public static final BitSet FOLLOW_rule__Page__Group__1_in_rule__Page__Group__06465 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Page__Group__1__Impl_in_rule__Page__Group__16523 = new BitSet(new long[] { 0x0400000000001000L });
+	public static final BitSet FOLLOW_rule__Page__Group__2_in_rule__Page__Group__16526 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Page__Alternatives_1_in_rule__Page__Group__1__Impl6553 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Page__Group__2__Impl_in_rule__Page__Group__26583 = new BitSet(new long[] { 0x0400000000001000L });
+	public static final BitSet FOLLOW_rule__Page__Group__3_in_rule__Page__Group__26586 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Page__PseudoPageAssignment_2_in_rule__Page__Group__2__Impl6613 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Page__Group__3__Impl_in_rule__Page__Group__36644 = new BitSet(new long[] { 0x081F00000002CC00L });
+	public static final BitSet FOLLOW_rule__Page__Group__4_in_rule__Page__Group__36647 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_58_in_rule__Page__Group__3__Impl6675 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Page__Group__4__Impl_in_rule__Page__Group__46706 = new BitSet(new long[] { 0x081F00000002CC00L });
+	public static final BitSet FOLLOW_rule__Page__Group__5_in_rule__Page__Group__46709 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Page__DeclarationsAssignment_4_in_rule__Page__Group__4__Impl6736 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Page__Group__5__Impl_in_rule__Page__Group__56767 = new BitSet(new long[] { 0x081F00000002CC00L });
+	public static final BitSet FOLLOW_rule__Page__Group__6_in_rule__Page__Group__56770 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Page__Group_5__0_in_rule__Page__Group__5__Impl6797 = new BitSet(new long[] { 0x0001000000000002L });
+	public static final BitSet FOLLOW_rule__Page__Group__6__Impl_in_rule__Page__Group__66828 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_59_in_rule__Page__Group__6__Impl6856 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Page__Group_5__0__Impl_in_rule__Page__Group_5__06901 = new BitSet(new long[] { 0x001E00000002CC00L });
+	public static final BitSet FOLLOW_rule__Page__Group_5__1_in_rule__Page__Group_5__06904 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_48_in_rule__Page__Group_5__0__Impl6932 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Page__Group_5__1__Impl_in_rule__Page__Group_5__16963 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Page__DeclarationsAssignment_5_1_in_rule__Page__Group_5__1__Impl6990 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Pseudo_page__Group__0__Impl_in_rule__Pseudo_page__Group__07025 = new BitSet(new long[] { 0x001E00000000CC00L });
+	public static final BitSet FOLLOW_rule__Pseudo_page__Group__1_in_rule__Pseudo_page__Group__07028 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_RULE_COLON_in_rule__Pseudo_page__Group__0__Impl7055 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Pseudo_page__Group__1__Impl_in_rule__Pseudo_page__Group__17084 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_ruleIdentifier_in_rule__Pseudo_page__Group__1__Impl7111 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Media__Group__0__Impl_in_rule__Media__Group__07144 = new BitSet(new long[] { 0x001E00000000CC00L });
+	public static final BitSet FOLLOW_rule__Media__Group__1_in_rule__Media__Group__07147 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Media__Alternatives_0_in_rule__Media__Group__0__Impl7174 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Media__Group__1__Impl_in_rule__Media__Group__17204 = new BitSet(new long[] { 0x0400000000000000L });
+	public static final BitSet FOLLOW_rule__Media__Group__2_in_rule__Media__Group__17207 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Media__MedialistAssignment_1_in_rule__Media__Group__1__Impl7234 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Media__Group__2__Impl_in_rule__Media__Group__27264 = new BitSet(new long[] { 0x181E04900000FC00L });
+	public static final BitSet FOLLOW_rule__Media__Group__3_in_rule__Media__Group__27267 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_58_in_rule__Media__Group__2__Impl7295 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Media__Group__3__Impl_in_rule__Media__Group__37326 = new BitSet(new long[] { 0x181E04900000FC00L });
+	public static final BitSet FOLLOW_rule__Media__Group__4_in_rule__Media__Group__37329 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Media__RulesetsAssignment_3_in_rule__Media__Group__3__Impl7356 = new BitSet(new long[] { 0x101E04900000FC02L });
+	public static final BitSet FOLLOW_rule__Media__Group__4__Impl_in_rule__Media__Group__47387 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_59_in_rule__Media__Group__4__Impl7415 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Media_list__Group__0__Impl_in_rule__Media_list__Group__07456 = new BitSet(new long[] { 0x0000000000000100L });
+	public static final BitSet FOLLOW_rule__Media_list__Group__1_in_rule__Media_list__Group__07459 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rulemedium_in_rule__Media_list__Group__0__Impl7486 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Media_list__Group__1__Impl_in_rule__Media_list__Group__17515 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Media_list__Group_1__0_in_rule__Media_list__Group__1__Impl7542 = new BitSet(new long[] { 0x0000000000000102L });
+	public static final BitSet FOLLOW_rule__Media_list__Group_1__0__Impl_in_rule__Media_list__Group_1__07577 = new BitSet(new long[] { 0x001E00000000CC00L });
+	public static final BitSet FOLLOW_rule__Media_list__Group_1__1_in_rule__Media_list__Group_1__07580 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_RULE_COMMA_in_rule__Media_list__Group_1__0__Impl7607 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Media_list__Group_1__1__Impl_in_rule__Media_list__Group_1__17636 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rulemedium_in_rule__Media_list__Group_1__1__Impl7663 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Font_face__Group__0__Impl_in_rule__Font_face__Group__07696 = new BitSet(new long[] { 0x0000000030000000L });
+	public static final BitSet FOLLOW_rule__Font_face__Group__1_in_rule__Font_face__Group__07699 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Font_face__Group__1__Impl_in_rule__Font_face__Group__17757 = new BitSet(new long[] { 0x0400000000000000L });
+	public static final BitSet FOLLOW_rule__Font_face__Group__2_in_rule__Font_face__Group__17760 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Font_face__Alternatives_1_in_rule__Font_face__Group__1__Impl7787 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Font_face__Group__2__Impl_in_rule__Font_face__Group__27817 = new BitSet(new long[] { 0x081F00000002CC00L });
+	public static final BitSet FOLLOW_rule__Font_face__Group__3_in_rule__Font_face__Group__27820 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_58_in_rule__Font_face__Group__2__Impl7848 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Font_face__Group__3__Impl_in_rule__Font_face__Group__37879 = new BitSet(new long[] { 0x081F00000002CC00L });
+	public static final BitSet FOLLOW_rule__Font_face__Group__4_in_rule__Font_face__Group__37882 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Font_face__DeclarationsAssignment_3_in_rule__Font_face__Group__3__Impl7909 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Font_face__Group__4__Impl_in_rule__Font_face__Group__47940 = new BitSet(new long[] { 0x081F00000002CC00L });
+	public static final BitSet FOLLOW_rule__Font_face__Group__5_in_rule__Font_face__Group__47943 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Font_face__Group_4__0_in_rule__Font_face__Group__4__Impl7970 = new BitSet(new long[] { 0x0001000000000002L });
+	public static final BitSet FOLLOW_rule__Font_face__Group__5__Impl_in_rule__Font_face__Group__58001 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_59_in_rule__Font_face__Group__5__Impl8029 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Font_face__Group_4__0__Impl_in_rule__Font_face__Group_4__08072 = new BitSet(new long[] { 0x001E00000002CC00L });
+	public static final BitSet FOLLOW_rule__Font_face__Group_4__1_in_rule__Font_face__Group_4__08075 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_48_in_rule__Font_face__Group_4__0__Impl8103 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Font_face__Group_4__1__Impl_in_rule__Font_face__Group_4__18134 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Font_face__DeclarationsAssignment_4_1_in_rule__Font_face__Group_4__1__Impl8161 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Keyframes__Group__0__Impl_in_rule__Keyframes__Group__08196 = new BitSet(new long[] { 0x101E0490FF00FC00L });
+	public static final BitSet FOLLOW_rule__Keyframes__Group__1_in_rule__Keyframes__Group__08199 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Keyframes__Group__1__Impl_in_rule__Keyframes__Group__18257 = new BitSet(new long[] { 0x001E00000000CC00L });
+	public static final BitSet FOLLOW_rule__Keyframes__Group__2_in_rule__Keyframes__Group__18260 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Keyframes__Alternatives_1_in_rule__Keyframes__Group__1__Impl8287 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Keyframes__Group__2__Impl_in_rule__Keyframes__Group__28317 = new BitSet(new long[] { 0x0400000000000000L });
+	public static final BitSet FOLLOW_rule__Keyframes__Group__3_in_rule__Keyframes__Group__28320 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Keyframes__NameAssignment_2_in_rule__Keyframes__Group__2__Impl8347 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Keyframes__Group__3__Impl_in_rule__Keyframes__Group__38377 = new BitSet(new long[] { 0x081F00800001CC80L });
+	public static final BitSet FOLLOW_rule__Keyframes__Group__4_in_rule__Keyframes__Group__38380 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_58_in_rule__Keyframes__Group__3__Impl8408 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Keyframes__Group__4__Impl_in_rule__Keyframes__Group__48439 = new BitSet(new long[] { 0x081F00800001CC80L });
+	public static final BitSet FOLLOW_rule__Keyframes__Group__5_in_rule__Keyframes__Group__48442 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Keyframes__KeyframeselectorsAssignment_4_in_rule__Keyframes__Group__4__Impl8469 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Keyframes__Group__5__Impl_in_rule__Keyframes__Group__58500 = new BitSet(new long[] { 0x081F00800001CC80L });
+	public static final BitSet FOLLOW_rule__Keyframes__Group__6_in_rule__Keyframes__Group__58503 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Keyframes__Group_5__0_in_rule__Keyframes__Group__5__Impl8530 = new BitSet(new long[] { 0x0001000000000002L });
+	public static final BitSet FOLLOW_rule__Keyframes__Group__6__Impl_in_rule__Keyframes__Group__68561 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_59_in_rule__Keyframes__Group__6__Impl8589 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Keyframes__Group_5__0__Impl_in_rule__Keyframes__Group_5__08634 = new BitSet(new long[] { 0x001E00800001CC80L });
+	public static final BitSet FOLLOW_rule__Keyframes__Group_5__1_in_rule__Keyframes__Group_5__08637 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_48_in_rule__Keyframes__Group_5__0__Impl8665 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Keyframes__Group_5__1__Impl_in_rule__Keyframes__Group_5__18696 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Keyframes__KeyframeselectorsAssignment_5_1_in_rule__Keyframes__Group_5__1__Impl8723 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Keyframe_selector__Group__0__Impl_in_rule__Keyframe_selector__Group__08758 = new BitSet(new long[] { 0x0400000000000000L });
+	public static final BitSet FOLLOW_rule__Keyframe_selector__Group__1_in_rule__Keyframe_selector__Group__08761 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Keyframe_selector__Alternatives_0_in_rule__Keyframe_selector__Group__0__Impl8788 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Keyframe_selector__Group__1__Impl_in_rule__Keyframe_selector__Group__18818 = new BitSet(new long[] { 0x081F00000002CC00L });
+	public static final BitSet FOLLOW_rule__Keyframe_selector__Group__2_in_rule__Keyframe_selector__Group__18821 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_58_in_rule__Keyframe_selector__Group__1__Impl8849 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Keyframe_selector__Group__2__Impl_in_rule__Keyframe_selector__Group__28880 = new BitSet(new long[] { 0x081F00000002CC00L });
+	public static final BitSet FOLLOW_rule__Keyframe_selector__Group__3_in_rule__Keyframe_selector__Group__28883 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Keyframe_selector__DeclarationsAssignment_2_in_rule__Keyframe_selector__Group__2__Impl8910 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Keyframe_selector__Group__3__Impl_in_rule__Keyframe_selector__Group__38941 = new BitSet(new long[] { 0x081F00000002CC00L });
+	public static final BitSet FOLLOW_rule__Keyframe_selector__Group__4_in_rule__Keyframe_selector__Group__38944 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Keyframe_selector__Group_3__0_in_rule__Keyframe_selector__Group__3__Impl8971 = new BitSet(new long[] { 0x0001000000000002L });
+	public static final BitSet FOLLOW_rule__Keyframe_selector__Group__4__Impl_in_rule__Keyframe_selector__Group__49002 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_59_in_rule__Keyframe_selector__Group__4__Impl9030 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Keyframe_selector__Group_0_1__0__Impl_in_rule__Keyframe_selector__Group_0_1__09071 = new BitSet(new long[] { 0x0000000000000200L });
+	public static final BitSet FOLLOW_rule__Keyframe_selector__Group_0_1__1_in_rule__Keyframe_selector__Group_0_1__09074 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Keyframe_selector__PercentageAssignment_0_1_0_in_rule__Keyframe_selector__Group_0_1__0__Impl9101 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Keyframe_selector__Group_0_1__1__Impl_in_rule__Keyframe_selector__Group_0_1__19131 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_RULE_PERCENT_in_rule__Keyframe_selector__Group_0_1__1__Impl9158 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Keyframe_selector__Group_3__0__Impl_in_rule__Keyframe_selector__Group_3__09191 = new BitSet(new long[] { 0x001E00000002CC00L });
+	public static final BitSet FOLLOW_rule__Keyframe_selector__Group_3__1_in_rule__Keyframe_selector__Group_3__09194 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_48_in_rule__Keyframe_selector__Group_3__0__Impl9222 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Keyframe_selector__Group_3__1__Impl_in_rule__Keyframe_selector__Group_3__19253 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Keyframe_selector__DeclarationsAssignment_3_1_in_rule__Keyframe_selector__Group_3__1__Impl9280 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Ruleset__Group__0__Impl_in_rule__Ruleset__Group__09315 = new BitSet(new long[] { 0x0400000000020100L });
+	public static final BitSet FOLLOW_rule__Ruleset__Group__1_in_rule__Ruleset__Group__09318 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Ruleset__SelectorsAssignment_0_in_rule__Ruleset__Group__0__Impl9345 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Ruleset__Group__1__Impl_in_rule__Ruleset__Group__19375 = new BitSet(new long[] { 0x0400000000020100L });
+	public static final BitSet FOLLOW_rule__Ruleset__Group__2_in_rule__Ruleset__Group__19378 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Ruleset__Group_1__0_in_rule__Ruleset__Group__1__Impl9405 = new BitSet(new long[] { 0x0000000000020102L });
+	public static final BitSet FOLLOW_rule__Ruleset__Group__2__Impl_in_rule__Ruleset__Group__29436 = new BitSet(new long[] { 0x0400000000020100L });
+	public static final BitSet FOLLOW_rule__Ruleset__Group__3_in_rule__Ruleset__Group__29439 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_RULE_WS_in_rule__Ruleset__Group__2__Impl9467 = new BitSet(new long[] { 0x0000000000020002L });
+	public static final BitSet FOLLOW_rule__Ruleset__Group__3__Impl_in_rule__Ruleset__Group__39498 = new BitSet(new long[] { 0x081E00000002CC00L });
+	public static final BitSet FOLLOW_rule__Ruleset__Group__4_in_rule__Ruleset__Group__39501 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_58_in_rule__Ruleset__Group__3__Impl9529 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Ruleset__Group__4__Impl_in_rule__Ruleset__Group__49560 = new BitSet(new long[] { 0x081E00000002CC00L });
+	public static final BitSet FOLLOW_rule__Ruleset__Group__5_in_rule__Ruleset__Group__49563 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Ruleset__Group_4__0_in_rule__Ruleset__Group__4__Impl9590 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Ruleset__Group__5__Impl_in_rule__Ruleset__Group__59621 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_59_in_rule__Ruleset__Group__5__Impl9649 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Ruleset__Group_1__0__Impl_in_rule__Ruleset__Group_1__09692 = new BitSet(new long[] { 0x0000000000020100L });
+	public static final BitSet FOLLOW_rule__Ruleset__Group_1__1_in_rule__Ruleset__Group_1__09695 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_RULE_WS_in_rule__Ruleset__Group_1__0__Impl9723 = new BitSet(new long[] { 0x0000000000020002L });
+	public static final BitSet FOLLOW_rule__Ruleset__Group_1__1__Impl_in_rule__Ruleset__Group_1__19754 = new BitSet(new long[] { 0x101E04900000FC00L });
+	public static final BitSet FOLLOW_rule__Ruleset__Group_1__2_in_rule__Ruleset__Group_1__19757 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_RULE_COMMA_in_rule__Ruleset__Group_1__1__Impl9784 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Ruleset__Group_1__2__Impl_in_rule__Ruleset__Group_1__29813 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Ruleset__SelectorsAssignment_1_2_in_rule__Ruleset__Group_1__2__Impl9840 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Ruleset__Group_4__0__Impl_in_rule__Ruleset__Group_4__09876 = new BitSet(new long[] { 0x0001000000000000L });
+	public static final BitSet FOLLOW_rule__Ruleset__Group_4__1_in_rule__Ruleset__Group_4__09879 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Ruleset__DeclarationsAssignment_4_0_in_rule__Ruleset__Group_4__0__Impl9906 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Ruleset__Group_4__1__Impl_in_rule__Ruleset__Group_4__19936 = new BitSet(new long[] { 0x0001000000000000L });
+	public static final BitSet FOLLOW_rule__Ruleset__Group_4__2_in_rule__Ruleset__Group_4__19939 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Ruleset__Group_4_1__0_in_rule__Ruleset__Group_4__1__Impl9966 = new BitSet(new long[] { 0x0001000000000002L });
+	public static final BitSet FOLLOW_rule__Ruleset__Group_4__2__Impl_in_rule__Ruleset__Group_4__29997 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_48_in_rule__Ruleset__Group_4__2__Impl10026 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Ruleset__Group_4_1__0__Impl_in_rule__Ruleset__Group_4_1__010065 = new BitSet(new long[] { 0x001E00000002CC00L });
+	public static final BitSet FOLLOW_rule__Ruleset__Group_4_1__1_in_rule__Ruleset__Group_4_1__010068 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_48_in_rule__Ruleset__Group_4_1__0__Impl10096 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Ruleset__Group_4_1__1__Impl_in_rule__Ruleset__Group_4_1__110127 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Ruleset__DeclarationsAssignment_4_1_1_in_rule__Ruleset__Group_4_1__1__Impl10154 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Selector__Group__0__Impl_in_rule__Selector__Group__010188 = new BitSet(new long[] { 0x0000006000020080L });
+	public static final BitSet FOLLOW_rule__Selector__Group__1_in_rule__Selector__Group__010191 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Selector__SimpleselectorsAssignment_0_in_rule__Selector__Group__0__Impl10218 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Selector__Group__1__Impl_in_rule__Selector__Group__110248 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Selector__Alternatives_1_in_rule__Selector__Group__1__Impl10275 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Selector__Group_1_0__0__Impl_in_rule__Selector__Group_1_0__010310 = new BitSet(new long[] { 0x101E04900002FC00L });
+	public static final BitSet FOLLOW_rule__Selector__Group_1_0__1_in_rule__Selector__Group_1_0__010313 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Selector__CombinatorAssignment_1_0_0_in_rule__Selector__Group_1_0__0__Impl10340 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Selector__Group_1_0__1__Impl_in_rule__Selector__Group_1_0__110370 = new BitSet(new long[] { 0x101E04900002FC00L });
+	public static final BitSet FOLLOW_rule__Selector__Group_1_0__2_in_rule__Selector__Group_1_0__110373 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_RULE_WS_in_rule__Selector__Group_1_0__1__Impl10401 = new BitSet(new long[] { 0x0000000000020002L });
+	public static final BitSet FOLLOW_rule__Selector__Group_1_0__2__Impl_in_rule__Selector__Group_1_0__210432 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Selector__SelectorAssignment_1_0_2_in_rule__Selector__Group_1_0__2__Impl10459 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Selector__Group_1_1__0__Impl_in_rule__Selector__Group_1_1__010495 = new BitSet(new long[] { 0x101E04F00000FC80L });
+	public static final BitSet FOLLOW_rule__Selector__Group_1_1__1_in_rule__Selector__Group_1_1__010498 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_RULE_WS_in_rule__Selector__Group_1_1__0__Impl10528 = new BitSet(new long[] { 0x0000000000020002L });
+	public static final BitSet FOLLOW_RULE_WS_in_rule__Selector__Group_1_1__0__Impl10541 = new BitSet(new long[] { 0x0000000000020002L });
+	public static final BitSet FOLLOW_rule__Selector__Group_1_1__1__Impl_in_rule__Selector__Group_1_1__110574 = new BitSet(new long[] { 0x101E04F00000FC80L });
+	public static final BitSet FOLLOW_rule__Selector__Group_1_1__2_in_rule__Selector__Group_1_1__110577 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Selector__Group_1_1_1__0_in_rule__Selector__Group_1_1__1__Impl10604 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Selector__Group_1_1__2__Impl_in_rule__Selector__Group_1_1__210635 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Selector__SelectorAssignment_1_1_2_in_rule__Selector__Group_1_1__2__Impl10662 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Selector__Group_1_1_1__0__Impl_in_rule__Selector__Group_1_1_1__010698 = new BitSet(new long[] { 0x0000000000020000L });
+	public static final BitSet FOLLOW_rule__Selector__Group_1_1_1__1_in_rule__Selector__Group_1_1_1__010701 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Selector__CombinatorAssignment_1_1_1_0_in_rule__Selector__Group_1_1_1__0__Impl10728 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Selector__Group_1_1_1__1__Impl_in_rule__Selector__Group_1_1_1__110758 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_RULE_WS_in_rule__Selector__Group_1_1_1__1__Impl10786 = new BitSet(new long[] { 0x0000000000020002L });
+	public static final BitSet FOLLOW_rule__SimpleSelectorForNegation__Group_0__0__Impl_in_rule__SimpleSelectorForNegation__Group_0__010821 = new BitSet(new long[] { 0x0000048000003000L });
+	public static final BitSet FOLLOW_rule__SimpleSelectorForNegation__Group_0__1_in_rule__SimpleSelectorForNegation__Group_0__010824 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__SimpleSelectorForNegation__Alternatives_0_0_in_rule__SimpleSelectorForNegation__Group_0__0__Impl10851 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__SimpleSelectorForNegation__Group_0__1__Impl_in_rule__SimpleSelectorForNegation__Group_0__110881 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__SimpleSelectorForNegation__SubSelectorsAssignment_0_1_in_rule__SimpleSelectorForNegation__Group_0__1__Impl10908 = new BitSet(new long[] { 0x0000048000003002L });
+	public static final BitSet FOLLOW_rule__Simple_selector__Group_0__0__Impl_in_rule__Simple_selector__Group_0__010943 = new BitSet(new long[] { 0x0000048000003000L });
+	public static final BitSet FOLLOW_rule__Simple_selector__Group_0__1_in_rule__Simple_selector__Group_0__010946 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Simple_selector__Alternatives_0_0_in_rule__Simple_selector__Group_0__0__Impl10973 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Simple_selector__Group_0__1__Impl_in_rule__Simple_selector__Group_0__111003 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Simple_selector__SubSelectorsAssignment_0_1_in_rule__Simple_selector__Group_0__1__Impl11030 = new BitSet(new long[] { 0x0000048000003002L });
+	public static final BitSet FOLLOW_rule__AttributeSelector__Group__0__Impl_in_rule__AttributeSelector__Group__011065 = new BitSet(new long[] { 0x0000040000000000L });
+	public static final BitSet FOLLOW_rule__AttributeSelector__Group__1_in_rule__AttributeSelector__Group__011068 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__AttributeSelector__Group__1__Impl_in_rule__AttributeSelector__Group__111126 = new BitSet(new long[] { 0x001E00000000CC00L });
+	public static final BitSet FOLLOW_rule__AttributeSelector__Group__2_in_rule__AttributeSelector__Group__111129 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_42_in_rule__AttributeSelector__Group__1__Impl11157 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__AttributeSelector__Group__2__Impl_in_rule__AttributeSelector__Group__211188 = new BitSet(new long[] { 0x0000080F00000030L });
+	public static final BitSet FOLLOW_rule__AttributeSelector__Group__3_in_rule__AttributeSelector__Group__211191 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__AttributeSelector__NameAssignment_2_in_rule__AttributeSelector__Group__2__Impl11218 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__AttributeSelector__Group__3__Impl_in_rule__AttributeSelector__Group__311248 = new BitSet(new long[] { 0x0000080F00000030L });
+	public static final BitSet FOLLOW_rule__AttributeSelector__Group__4_in_rule__AttributeSelector__Group__311251 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__AttributeSelector__Group_3__0_in_rule__AttributeSelector__Group__3__Impl11278 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__AttributeSelector__Group__4__Impl_in_rule__AttributeSelector__Group__411309 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_43_in_rule__AttributeSelector__Group__4__Impl11337 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__AttributeSelector__Group_3__0__Impl_in_rule__AttributeSelector__Group_3__011378 = new BitSet(new long[] { 0x001E00000000CC40L });
+	public static final BitSet FOLLOW_rule__AttributeSelector__Group_3__1_in_rule__AttributeSelector__Group_3__011381 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__AttributeSelector__OpAssignment_3_0_in_rule__AttributeSelector__Group_3__0__Impl11408 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__AttributeSelector__Group_3__1__Impl_in_rule__AttributeSelector__Group_3__111438 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__AttributeSelector__ValueAssignment_3_1_in_rule__AttributeSelector__Group_3__1__Impl11465 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__ClassSelector__Group__0__Impl_in_rule__ClassSelector__Group__011499 = new BitSet(new long[] { 0x0000008000000000L });
+	public static final BitSet FOLLOW_rule__ClassSelector__Group__1_in_rule__ClassSelector__Group__011502 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__ClassSelector__Group__1__Impl_in_rule__ClassSelector__Group__111560 = new BitSet(new long[] { 0x001E00000000CC00L });
+	public static final BitSet FOLLOW_rule__ClassSelector__Group__2_in_rule__ClassSelector__Group__111563 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_39_in_rule__ClassSelector__Group__1__Impl11591 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__ClassSelector__Group__2__Impl_in_rule__ClassSelector__Group__211622 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__ClassSelector__NameAssignment_2_in_rule__ClassSelector__Group__2__Impl11649 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__ElementSelector__Group__0__Impl_in_rule__ElementSelector__Group__011685 = new BitSet(new long[] { 0x001E00000000CC00L });
+	public static final BitSet FOLLOW_rule__ElementSelector__Group__1_in_rule__ElementSelector__Group__011688 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__ElementSelector__Group__1__Impl_in_rule__ElementSelector__Group__111746 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__ElementSelector__NameAssignment_1_in_rule__ElementSelector__Group__1__Impl11773 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__UniversalSelector__Group__0__Impl_in_rule__UniversalSelector__Group__011807 = new BitSet(new long[] { 0x101E00100000CC00L });
+	public static final BitSet FOLLOW_rule__UniversalSelector__Group__1_in_rule__UniversalSelector__Group__011810 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__UniversalSelector__Group__1__Impl_in_rule__UniversalSelector__Group__111868 = new BitSet(new long[] { 0x101E00100000CC00L });
+	public static final BitSet FOLLOW_rule__UniversalSelector__Group__2_in_rule__UniversalSelector__Group__111871 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__UniversalSelector__NamespaceAssignment_1_in_rule__UniversalSelector__Group__1__Impl11898 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__UniversalSelector__Group__2__Impl_in_rule__UniversalSelector__Group__211929 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_36_in_rule__UniversalSelector__Group__2__Impl11957 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__IdSelector__Group__0__Impl_in_rule__IdSelector__Group__011994 = new BitSet(new long[] { 0x0000000000002000L });
+	public static final BitSet FOLLOW_rule__IdSelector__Group__1_in_rule__IdSelector__Group__011997 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__IdSelector__Group__1__Impl_in_rule__IdSelector__Group__112055 = new BitSet(new long[] { 0x001E00000000CC00L });
+	public static final BitSet FOLLOW_rule__IdSelector__Group__2_in_rule__IdSelector__Group__112058 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_RULE_HASHMARK_in_rule__IdSelector__Group__1__Impl12085 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__IdSelector__Group__2__Impl_in_rule__IdSelector__Group__212114 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__IdSelector__NameAssignment_2_in_rule__IdSelector__Group__2__Impl12141 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Css_namespace_prefix__Group__0__Impl_in_rule__Css_namespace_prefix__Group__012177 = new BitSet(new long[] { 0x101E00100000CC00L });
+	public static final BitSet FOLLOW_rule__Css_namespace_prefix__Group__1_in_rule__Css_namespace_prefix__Group__012180 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Css_namespace_prefix__Alternatives_0_in_rule__Css_namespace_prefix__Group__0__Impl12207 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Css_namespace_prefix__Group__1__Impl_in_rule__Css_namespace_prefix__Group__112238 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_60_in_rule__Css_namespace_prefix__Group__1__Impl12266 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Css_declaration__Group__0__Impl_in_rule__Css_declaration__Group__012301 = new BitSet(new long[] { 0x001E00000002CC00L });
+	public static final BitSet FOLLOW_rule__Css_declaration__Group__1_in_rule__Css_declaration__Group__012304 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_RULE_WS_in_rule__Css_declaration__Group__0__Impl12332 = new BitSet(new long[] { 0x0000000000020002L });
+	public static final BitSet FOLLOW_rule__Css_declaration__Group__1__Impl_in_rule__Css_declaration__Group__112363 = new BitSet(new long[] { 0x0000000000021000L });
+	public static final BitSet FOLLOW_rule__Css_declaration__Group__2_in_rule__Css_declaration__Group__112366 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Css_declaration__PropertyAssignment_1_in_rule__Css_declaration__Group__1__Impl12393 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Css_declaration__Group__2__Impl_in_rule__Css_declaration__Group__212423 = new BitSet(new long[] { 0x0000000000021000L });
+	public static final BitSet FOLLOW_rule__Css_declaration__Group__3_in_rule__Css_declaration__Group__212426 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_RULE_WS_in_rule__Css_declaration__Group__2__Impl12454 = new BitSet(new long[] { 0x0000000000020002L });
+	public static final BitSet FOLLOW_rule__Css_declaration__Group__3__Impl_in_rule__Css_declaration__Group__312485 = new BitSet(new long[] { 0x001E00800003EFC0L, 0x0000000000000001L });
+	public static final BitSet FOLLOW_rule__Css_declaration__Group__4_in_rule__Css_declaration__Group__312488 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_RULE_COLON_in_rule__Css_declaration__Group__3__Impl12515 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Css_declaration__Group__4__Impl_in_rule__Css_declaration__Group__412544 = new BitSet(new long[] { 0x0000000000040000L });
+	public static final BitSet FOLLOW_rule__Css_declaration__Group__5_in_rule__Css_declaration__Group__412547 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Css_declaration__ValueTokensAssignment_4_in_rule__Css_declaration__Group__4__Impl12576 = new BitSet(new long[] { 0x001E00800003EFC2L, 0x0000000000000001L });
+	public static final BitSet FOLLOW_rule__Css_declaration__ValueTokensAssignment_4_in_rule__Css_declaration__Group__4__Impl12588 = new BitSet(new long[] { 0x001E00800003EFC2L, 0x0000000000000001L });
+	public static final BitSet FOLLOW_rule__Css_declaration__Group__5__Impl_in_rule__Css_declaration__Group__512621 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Css_declaration__ImportantAssignment_5_in_rule__Css_declaration__Group__5__Impl12648 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Css_property__Group__0__Impl_in_rule__Css_property__Group__012691 = new BitSet(new long[] { 0x001E00000002CC00L });
+	public static final BitSet FOLLOW_rule__Css_property__Group__1_in_rule__Css_property__Group__012694 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Css_property__Group__1__Impl_in_rule__Css_property__Group__112752 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Css_property__NameAssignment_1_in_rule__Css_property__Group__1__Impl12779 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__PseudoClass__Group__0__Impl_in_rule__PseudoClass__Group__012813 = new BitSet(new long[] { 0x001E00000000DC00L });
+	public static final BitSet FOLLOW_rule__PseudoClass__Group__1_in_rule__PseudoClass__Group__012816 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_RULE_COLON_in_rule__PseudoClass__Group__0__Impl12843 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__PseudoClass__Group__1__Impl_in_rule__PseudoClass__Group__112872 = new BitSet(new long[] { 0x001E00000000DC00L });
+	public static final BitSet FOLLOW_rule__PseudoClass__Group__2_in_rule__PseudoClass__Group__112875 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_RULE_COLON_in_rule__PseudoClass__Group__1__Impl12903 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__PseudoClass__Group__2__Impl_in_rule__PseudoClass__Group__212934 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rulePseudoClassName_in_rule__PseudoClass__Group__2__Impl12961 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__PseudoClassFunction__Group_0__0__Impl_in_rule__PseudoClassFunction__Group_0__012996 = new BitSet(new long[] { 0x101E04900000FC00L });
+	public static final BitSet FOLLOW_rule__PseudoClassFunction__Group_0__1_in_rule__PseudoClassFunction__Group_0__012999 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__PseudoClassFunction__NotAssignment_0_0_in_rule__PseudoClassFunction__Group_0__0__Impl13026 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__PseudoClassFunction__Group_0__1__Impl_in_rule__PseudoClassFunction__Group_0__113056 = new BitSet(new long[] { 0x2000000000000000L });
+	public static final BitSet FOLLOW_rule__PseudoClassFunction__Group_0__2_in_rule__PseudoClassFunction__Group_0__113059 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__PseudoClassFunction__ParamSelectorAssignment_0_1_in_rule__PseudoClassFunction__Group_0__1__Impl13086 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__PseudoClassFunction__Group_0__2__Impl_in_rule__PseudoClassFunction__Group_0__213116 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_61_in_rule__PseudoClassFunction__Group_0__2__Impl13144 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__PseudoClassFunction__Group_1__0__Impl_in_rule__PseudoClassFunction__Group_1__013181 = new BitSet(new long[] { 0x001E00000000CC00L });
+	public static final BitSet FOLLOW_rule__PseudoClassFunction__Group_1__1_in_rule__PseudoClassFunction__Group_1__013184 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_RULE_COLON_in_rule__PseudoClassFunction__Group_1__0__Impl13211 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__PseudoClassFunction__Group_1__1__Impl_in_rule__PseudoClassFunction__Group_1__113240 = new BitSet(new long[] { 0x4000000000000000L });
+	public static final BitSet FOLLOW_rule__PseudoClassFunction__Group_1__2_in_rule__PseudoClassFunction__Group_1__113243 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__PseudoClassFunction__NameAssignment_1_1_in_rule__PseudoClassFunction__Group_1__1__Impl13270 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__PseudoClassFunction__Group_1__2__Impl_in_rule__PseudoClassFunction__Group_1__213300 = new BitSet(new long[] { 0x201E00800003EFC0L, 0x0000000000000001L });
+	public static final BitSet FOLLOW_rule__PseudoClassFunction__Group_1__3_in_rule__PseudoClassFunction__Group_1__213303 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_62_in_rule__PseudoClassFunction__Group_1__2__Impl13331 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__PseudoClassFunction__Group_1__3__Impl_in_rule__PseudoClassFunction__Group_1__313362 = new BitSet(new long[] { 0x201E00800003EFC0L, 0x0000000000000001L });
+	public static final BitSet FOLLOW_rule__PseudoClassFunction__Group_1__4_in_rule__PseudoClassFunction__Group_1__313365 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__PseudoClassFunction__ParamsAssignment_1_3_in_rule__PseudoClassFunction__Group_1__3__Impl13392 = new BitSet(new long[] { 0x001E00800003EFC2L, 0x0000000000000001L });
+	public static final BitSet FOLLOW_rule__PseudoClassFunction__Group_1__4__Impl_in_rule__PseudoClassFunction__Group_1__413423 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_61_in_rule__PseudoClassFunction__Group_1__4__Impl13451 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__NotFunctionCall__Group__0__Impl_in_rule__NotFunctionCall__Group__013492 = new BitSet(new long[] { 0x8000000000000000L });
+	public static final BitSet FOLLOW_rule__NotFunctionCall__Group__1_in_rule__NotFunctionCall__Group__013495 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_RULE_COLON_in_rule__NotFunctionCall__Group__0__Impl13522 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__NotFunctionCall__Group__1__Impl_in_rule__NotFunctionCall__Group__113551 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_63_in_rule__NotFunctionCall__Group__1__Impl13579 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__SymbolTok__Group__0__Impl_in_rule__SymbolTok__Group__013614 = new BitSet(new long[] { 0x0000000000000300L });
+	public static final BitSet FOLLOW_rule__SymbolTok__Group__1_in_rule__SymbolTok__Group__013617 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__SymbolTok__Group__1__Impl_in_rule__SymbolTok__Group__113675 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__SymbolTok__SymbolAssignment_1_in_rule__SymbolTok__Group__1__Impl13702 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__WSTok__Group__0__Impl_in_rule__WSTok__Group__013736 = new BitSet(new long[] { 0x0000000000020000L });
+	public static final BitSet FOLLOW_rule__WSTok__Group__1_in_rule__WSTok__Group__013739 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__WSTok__Group__1__Impl_in_rule__WSTok__Group__113797 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_RULE_WS_in_rule__WSTok__Group__1__Impl13824 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__StringTok__Group__0__Impl_in_rule__StringTok__Group__013857 = new BitSet(new long[] { 0x0000000000000040L });
+	public static final BitSet FOLLOW_rule__StringTok__Group__1_in_rule__StringTok__Group__013860 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__StringTok__Group__1__Impl_in_rule__StringTok__Group__113918 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__StringTok__ValueAssignment_1_in_rule__StringTok__Group__1__Impl13945 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__NumberTok__Group__0__Impl_in_rule__NumberTok__Group__013979 = new BitSet(new long[] { 0x001E00800001CC80L });
+	public static final BitSet FOLLOW_rule__NumberTok__Group__1_in_rule__NumberTok__Group__013982 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__NumberTok__Group__1__Impl_in_rule__NumberTok__Group__114040 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__NumberTok__ValAssignment_1_in_rule__NumberTok__Group__1__Impl14067 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__UrlTok__Group__0__Impl_in_rule__UrlTok__Group__014101 = new BitSet(new long[] { 0x0000000000000040L, 0x0000000000000001L });
+	public static final BitSet FOLLOW_rule__UrlTok__Group__1_in_rule__UrlTok__Group__014104 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__UrlTok__Group__1__Impl_in_rule__UrlTok__Group__114162 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__UrlTok__UrlAssignment_1_in_rule__UrlTok__Group__1__Impl14189 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__ColorTok__Group__0__Impl_in_rule__ColorTok__Group__014223 = new BitSet(new long[] { 0x001E00800003EFC0L, 0x0000000000000001L });
+	public static final BitSet FOLLOW_rule__ColorTok__Group__1_in_rule__ColorTok__Group__014226 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__ColorTok__Group__1__Impl_in_rule__ColorTok__Group__114284 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__ColorTok__ValueAssignment_1_in_rule__ColorTok__Group__1__Impl14311 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__IdentifierOrFuncTok__Group__0__Impl_in_rule__IdentifierOrFuncTok__Group__014345 = new BitSet(new long[] { 0x001E00000000CC00L });
+	public static final BitSet FOLLOW_rule__IdentifierOrFuncTok__Group__1_in_rule__IdentifierOrFuncTok__Group__014348 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__IdentifierOrFuncTok__Group__1__Impl_in_rule__IdentifierOrFuncTok__Group__114406 = new BitSet(new long[] { 0x4000000000000000L });
+	public static final BitSet FOLLOW_rule__IdentifierOrFuncTok__Group__2_in_rule__IdentifierOrFuncTok__Group__114409 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__IdentifierOrFuncTok__NameAssignment_1_in_rule__IdentifierOrFuncTok__Group__1__Impl14436 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__IdentifierOrFuncTok__Group__2__Impl_in_rule__IdentifierOrFuncTok__Group__214466 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__IdentifierOrFuncTok__Group_2__0_in_rule__IdentifierOrFuncTok__Group__2__Impl14493 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__IdentifierOrFuncTok__Group_2__0__Impl_in_rule__IdentifierOrFuncTok__Group_2__014530 = new BitSet(new long[] { 0x4000000000000000L });
+	public static final BitSet FOLLOW_rule__IdentifierOrFuncTok__Group_2__1_in_rule__IdentifierOrFuncTok__Group_2__014533 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__IdentifierOrFuncTok__Group_2__1__Impl_in_rule__IdentifierOrFuncTok__Group_2__114591 = new BitSet(new long[] { 0x001E00800003EFC0L, 0x0000000000000001L });
+	public static final BitSet FOLLOW_rule__IdentifierOrFuncTok__Group_2__2_in_rule__IdentifierOrFuncTok__Group_2__114594 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_62_in_rule__IdentifierOrFuncTok__Group_2__1__Impl14622 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__IdentifierOrFuncTok__Group_2__2__Impl_in_rule__IdentifierOrFuncTok__Group_2__214653 = new BitSet(new long[] { 0x2000000000000000L });
+	public static final BitSet FOLLOW_rule__IdentifierOrFuncTok__Group_2__3_in_rule__IdentifierOrFuncTok__Group_2__214656 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__IdentifierOrFuncTok__ParamsAssignment_2_2_in_rule__IdentifierOrFuncTok__Group_2__2__Impl14685 = new BitSet(new long[] { 0x001E00800003EFC2L, 0x0000000000000001L });
+	public static final BitSet FOLLOW_rule__IdentifierOrFuncTok__ParamsAssignment_2_2_in_rule__IdentifierOrFuncTok__Group_2__2__Impl14697 = new BitSet(new long[] { 0x001E00800003EFC2L, 0x0000000000000001L });
+	public static final BitSet FOLLOW_rule__IdentifierOrFuncTok__Group_2__3__Impl_in_rule__IdentifierOrFuncTok__Group_2__314730 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_61_in_rule__IdentifierOrFuncTok__Group_2__3__Impl14758 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__URLType__Group__0__Impl_in_rule__URLType__Group__014797 = new BitSet(new long[] { 0x03FFFFD80001FFC0L });
+	public static final BitSet FOLLOW_rule__URLType__Group__1_in_rule__URLType__Group__014800 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_64_in_rule__URLType__Group__0__Impl14828 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__URLType__Group__1__Impl_in_rule__URLType__Group__114859 = new BitSet(new long[] { 0x2000000000000000L });
+	public static final BitSet FOLLOW_rule__URLType__Group__2_in_rule__URLType__Group__114862 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__URLType__UrlAssignment_1_in_rule__URLType__Group__1__Impl14889 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__URLType__Group__2__Impl_in_rule__URLType__Group__214919 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_61_in_rule__URLType__Group__2__Impl14947 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__ValidURLSymbol__Group_18__0__Impl_in_rule__ValidURLSymbol__Group_18__014984 = new BitSet(new long[] { 0x001E000000000000L });
+	public static final BitSet FOLLOW_rule__ValidURLSymbol__Group_18__1_in_rule__ValidURLSymbol__Group_18__014987 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_35_in_rule__ValidURLSymbol__Group_18__0__Impl15015 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__ValidURLSymbol__Group_18__1__Impl_in_rule__ValidURLSymbol__Group_18__115046 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_ruleKeywordHack_in_rule__ValidURLSymbol__Group_18__1__Impl15073 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__ValidURL__Group_1_10__0__Impl_in_rule__ValidURL__Group_1_10__015106 = new BitSet(new long[] { 0x0000000000014000L });
+	public static final BitSet FOLLOW_rule__ValidURL__Group_1_10__1_in_rule__ValidURL__Group_1_10__015109 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_RULE_PERCENT_in_rule__ValidURL__Group_1_10__0__Impl15136 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__ValidURL__Group_1_10__1__Impl_in_rule__ValidURL__Group_1_10__115165 = new BitSet(new long[] { 0x0000000000014000L });
+	public static final BitSet FOLLOW_rule__ValidURL__Group_1_10__2_in_rule__ValidURL__Group_1_10__115168 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__ValidURL__Alternatives_1_10_1_in_rule__ValidURL__Group_1_10__1__Impl15195 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__ValidURL__Group_1_10__2__Impl_in_rule__ValidURL__Group_1_10__215225 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__ValidURL__Alternatives_1_10_2_in_rule__ValidURL__Group_1_10__2__Impl15252 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Identifier__Group__0__Impl_in_rule__Identifier__Group__015288 = new BitSet(new long[] { 0x001E00000000CC00L });
+	public static final BitSet FOLLOW_rule__Identifier__Group__1_in_rule__Identifier__Group__015291 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_RULE_DASH_in_rule__Identifier__Group__0__Impl15319 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Identifier__Group__1__Impl_in_rule__Identifier__Group__115350 = new BitSet(new long[] { 0x001E00000001CC00L });
+	public static final BitSet FOLLOW_rule__Identifier__Group__2_in_rule__Identifier__Group__115353 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Identifier__Alternatives_1_in_rule__Identifier__Group__1__Impl15380 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Identifier__Group__2__Impl_in_rule__Identifier__Group__215410 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Identifier__Group_2__0_in_rule__Identifier__Group__2__Impl15437 = new BitSet(new long[] { 0x001E00000001CC02L });
+	public static final BitSet FOLLOW_rule__Identifier__Group_2__0__Impl_in_rule__Identifier__Group_2__015474 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Identifier__Alternatives_2_0_in_rule__Identifier__Group_2__0__Impl15501 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Num__Group__0__Impl_in_rule__Num__Group__015533 = new BitSet(new long[] { 0x001E00800001CC80L });
+	public static final BitSet FOLLOW_rule__Num__Group__1_in_rule__Num__Group__015536 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Num__Alternatives_0_in_rule__Num__Group__0__Impl15563 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Num__Group__1__Impl_in_rule__Num__Group__115594 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Num__Alternatives_1_in_rule__Num__Group__1__Impl15621 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Num__Group_1_0__0__Impl_in_rule__Num__Group_1_0__015655 = new BitSet(new long[] { 0x0000000000010000L });
+	public static final BitSet FOLLOW_rule__Num__Group_1_0__1_in_rule__Num__Group_1_0__015658 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_39_in_rule__Num__Group_1_0__0__Impl15686 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Num__Group_1_0__1__Impl_in_rule__Num__Group_1_0__115717 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_RULE_ONE_INT_in_rule__Num__Group_1_0__1__Impl15747 = new BitSet(new long[] { 0x0000000000010002L });
+	public static final BitSet FOLLOW_RULE_ONE_INT_in_rule__Num__Group_1_0__1__Impl15760 = new BitSet(new long[] { 0x0000000000010002L });
+	public static final BitSet FOLLOW_rule__Num__Group_1_1__0__Impl_in_rule__Num__Group_1_1__015797 = new BitSet(new long[] { 0x0000008000000000L });
+	public static final BitSet FOLLOW_rule__Num__Group_1_1__1_in_rule__Num__Group_1_1__015800 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_RULE_ONE_INT_in_rule__Num__Group_1_1__0__Impl15830 = new BitSet(new long[] { 0x0000000000010002L });
+	public static final BitSet FOLLOW_RULE_ONE_INT_in_rule__Num__Group_1_1__0__Impl15843 = new BitSet(new long[] { 0x0000000000010002L });
+	public static final BitSet FOLLOW_rule__Num__Group_1_1__1__Impl_in_rule__Num__Group_1_1__115876 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Num__Group_1_1_1__0_in_rule__Num__Group_1_1__1__Impl15903 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Num__Group_1_1_1__0__Impl_in_rule__Num__Group_1_1_1__015938 = new BitSet(new long[] { 0x0000000000010000L });
+	public static final BitSet FOLLOW_rule__Num__Group_1_1_1__1_in_rule__Num__Group_1_1_1__015941 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_39_in_rule__Num__Group_1_1_1__0__Impl15970 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Num__Group_1_1_1__1__Impl_in_rule__Num__Group_1_1_1__116002 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_RULE_ONE_INT_in_rule__Num__Group_1_1_1__1__Impl16032 = new BitSet(new long[] { 0x0000000000010002L });
+	public static final BitSet FOLLOW_RULE_ONE_INT_in_rule__Num__Group_1_1_1__1__Impl16045 = new BitSet(new long[] { 0x0000000000010002L });
+	public static final BitSet FOLLOW_rule__Hex__Group__0__Impl_in_rule__Hex__Group__016082 = new BitSet(new long[] { 0x0000000000014000L });
+	public static final BitSet FOLLOW_rule__Hex__Group__1_in_rule__Hex__Group__016085 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_RULE_HASHMARK_in_rule__Hex__Group__0__Impl16112 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Hex__Group__1__Impl_in_rule__Hex__Group__116141 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Hex__Group_1__0_in_rule__Hex__Group__1__Impl16170 = new BitSet(new long[] { 0x0000000000014002L });
+	public static final BitSet FOLLOW_rule__Hex__Group_1__0_in_rule__Hex__Group__1__Impl16182 = new BitSet(new long[] { 0x0000000000014002L });
+	public static final BitSet FOLLOW_rule__Hex__Group_1__0__Impl_in_rule__Hex__Group_1__016219 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Hex__Alternatives_1_0_in_rule__Hex__Group_1__0__Impl16246 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rulecharset_in_rule__Stylesheet__CharsetAssignment_016283 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_ruleimportExpression_in_rule__Stylesheet__ImportsAssignment_116314 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_ruleruleset_in_rule__Stylesheet__RulesetAssignment_2_016345 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rulemedia_in_rule__Stylesheet__MediaAssignment_2_116376 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rulepage_in_rule__Stylesheet__PageAssignment_2_216407 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rulefont_face_in_rule__Stylesheet__Font_faceAssignment_2_316438 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rulekeyframes_in_rule__Stylesheet__KeyframesAssignment_2_416469 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_RULE_CSSSTRING_in_rule__Charset__CharsetAssignment_116500 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_RULE_CSSSTRING_in_rule__ImportExpression__ValueAssignment_1_016531 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rulemedia_list_in_rule__ImportExpression__MediaListAssignment_1_1_116562 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rulepseudo_page_in_rule__Page__PseudoPageAssignment_216593 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rulecss_declaration_in_rule__Page__DeclarationsAssignment_416624 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rulecss_declaration_in_rule__Page__DeclarationsAssignment_5_116655 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rulemedia_list_in_rule__Media__MedialistAssignment_116686 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_ruleruleset_in_rule__Media__RulesetsAssignment_316717 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rulecss_declaration_in_rule__Font_face__DeclarationsAssignment_316748 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rulecss_declaration_in_rule__Font_face__DeclarationsAssignment_4_116779 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_ruleIdentifier_in_rule__Keyframes__NameAssignment_216810 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rulekeyframe_selector_in_rule__Keyframes__KeyframeselectorsAssignment_416841 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rulekeyframe_selector_in_rule__Keyframes__KeyframeselectorsAssignment_5_116872 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_ruleIdentifier_in_rule__Keyframe_selector__TypeAssignment_0_016903 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_ruleNum_in_rule__Keyframe_selector__PercentageAssignment_0_1_016934 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rulecss_declaration_in_rule__Keyframe_selector__DeclarationsAssignment_216965 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rulecss_declaration_in_rule__Keyframe_selector__DeclarationsAssignment_3_116996 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_ruleselector_in_rule__Ruleset__SelectorsAssignment_017027 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_ruleselector_in_rule__Ruleset__SelectorsAssignment_1_217058 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rulecss_declaration_in_rule__Ruleset__DeclarationsAssignment_4_017089 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rulecss_declaration_in_rule__Ruleset__DeclarationsAssignment_4_1_117120 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rulesimple_selector_in_rule__Selector__SimpleselectorsAssignment_017151 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rulecombinator_in_rule__Selector__CombinatorAssignment_1_0_017182 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_ruleselector_in_rule__Selector__SelectorAssignment_1_0_217213 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rulecombinator_in_rule__Selector__CombinatorAssignment_1_1_1_017244 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_ruleselector_in_rule__Selector__SelectorAssignment_1_1_217275 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_ruleElementSelector_in_rule__SimpleSelectorForNegation__ElementAssignment_0_0_017306 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_ruleUniversalSelector_in_rule__SimpleSelectorForNegation__UniversalAssignment_0_0_117337 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_ruleSubSelectorForNegation_in_rule__SimpleSelectorForNegation__SubSelectorsAssignment_0_117368 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_ruleSubSelectorForNegation_in_rule__SimpleSelectorForNegation__SubSelectorsAssignment_117399 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_ruleElementSelector_in_rule__Simple_selector__ElementAssignment_0_0_017430 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_ruleUniversalSelector_in_rule__Simple_selector__UniversalAssignment_0_0_117461 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_ruleSubSelector_in_rule__Simple_selector__SubSelectorsAssignment_0_117492 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_ruleSubSelector_in_rule__Simple_selector__SubSelectorsAssignment_117523 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_ruleIdentifier_in_rule__AttributeSelector__NameAssignment_217554 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__AttributeSelector__OpAlternatives_3_0_0_in_rule__AttributeSelector__OpAssignment_3_017585 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__AttributeSelector__ValueAlternatives_3_1_0_in_rule__AttributeSelector__ValueAssignment_3_117618 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_ruleIdentifier_in_rule__ClassSelector__NameAssignment_217651 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_ruleIdentifier_in_rule__ElementSelector__NameAssignment_117682 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rulecss_namespace_prefix_in_rule__UniversalSelector__NamespaceAssignment_117713 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_ruleIdentifier_in_rule__IdSelector__NameAssignment_217744 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rulecss_property_in_rule__Css_declaration__PropertyAssignment_117775 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_ruleCssTok_in_rule__Css_declaration__ValueTokensAssignment_417806 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_RULE_IMPORTANT_SYM_in_rule__Css_declaration__ImportantAssignment_517837 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_ruleValidPropertyIdent_in_rule__Css_property__NameAssignment_117868 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_ruleIdentifier_in_rule__PseudoClassName__NameAssignment17899 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_ruleNotFunctionCall_in_rule__PseudoClassFunction__NotAssignment_0_017930 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_ruleSimpleSelectorForNegation_in_rule__PseudoClassFunction__ParamSelectorAssignment_0_117961 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_ruleIdentifier_in_rule__PseudoClassFunction__NameAssignment_1_117992 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_ruleCssTok_in_rule__PseudoClassFunction__ParamsAssignment_1_318023 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__SymbolTok__SymbolAlternatives_1_0_in_rule__SymbolTok__SymbolAssignment_118054 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_RULE_CSSSTRING_in_rule__StringTok__ValueAssignment_118087 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_ruleNum_in_rule__NumberTok__ValAssignment_118118 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_ruleURLType_in_rule__UrlTok__UrlAssignment_118149 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_ruleHex_in_rule__ColorTok__ValueAssignment_118180 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_ruleIdentifier_in_rule__IdentifierOrFuncTok__NameAssignment_118211 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_ruleCssTok_in_rule__IdentifierOrFuncTok__ParamsAssignment_2_218242 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_ruleValidURL_in_rule__URLType__UrlAssignment_118273 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Identifier__Group_2__0_in_synpred134_InternalCSS15437 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_RULE_ONE_INT_in_synpred136_InternalCSS15760 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_RULE_ONE_INT_in_synpred137_InternalCSS15843 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Num__Group_1_1_1__0_in_synpred138_InternalCSS15903 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_RULE_ONE_INT_in_synpred139_InternalCSS16045 = new BitSet(new long[] { 0x0000000000000002L });
+	public static final BitSet FOLLOW_rule__Hex__Group_1__0_in_synpred140_InternalCSS16182 = new BitSet(new long[] { 0x0000000000000002L });
+
+}
+\ No newline at end of file