tourdeflexmodules/src/spark/css/CSSDescendantSelectorExample.mxml

<?xml version="1.0" encoding="utf-8"?>
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<s:Module xmlns:fx="http://ns.adobe.com/mxml/2009" 
			   xmlns:s="library://ns.adobe.com/flex/spark" 
			   xmlns:mx="library://ns.adobe.com/flex/mx">
	
	<fx:Style>
		@namespace s "library://ns.adobe.com/flex/spark";
		@namespace mx "library://ns.adobe.com/flex/mx";
		
		s|ButtonBar s|ToggleButton:upAndSelected,
		s|ButtonBar s|ToggleButton:overAndSelected,
		s|ButtonBar s|ToggleButton:downAndSelected,
		
		s|ButtonBar s|ToggleButton:disabledAndSelected {
			baseColor: #FF6633;
			color: #FFFFCC;
		}
		
		s|ButtonBar {
			baseColor: #FFFFCC;
		}
		
		s|Button {
			baseColor: #000000;
			color: #269d6c;
		}
		
		s|VGroup s|Label {
			fontWeight: "bold";
			color: #336699;
		}
		
		s|VGroup mx|Text {
			color: #0A436B;
			fontWeight: "bold";
		}
	</fx:Style>
	
	<s:Panel title="Advanced CSS: Descendant Selector Example" height="100%" width="100%">
		
		<s:layout>
			<s:HorizontalLayout paddingLeft="10" paddingRight="10" paddingTop="10" paddingBottom="10"/>
		</s:layout>
		
		<s:Group width="50%" height="50%">
			<s:ButtonBar id="viewMenu" requireSelection="true" x="10" y="10">
				<s:dataProvider>
					<mx:ArrayCollection source="['Home', 'Events', 'Rooms', 'Dining']" />
				</s:dataProvider>
			</s:ButtonBar>
			<s:Button label="Click Me!" x="12" y="48"/>
			<s:Label x="10" y="90" text="Only text in the VGroup below has bold content." />
			<s:VGroup x="10" y="109">
				<s:Label text="This text component has the style setting referring to the Spark Label component." />
				<mx:Text text="This text component has a style setting with a reference to a Halo Text component."/>
			</s:VGroup>
		</s:Group>
		<s:Label width="200" text="Descendant selectors can be used to specifically qualify the component you 
want to style via the namespace and component. See the Style settings in the code for reference." x="440" y="10"/>
	</s:Panel>
</s:Module>