<?xml version="1.0" encoding="utf-8"?>
<s:Application xmlns="http://ns.adobe.com/mxml/2009"
               xmlns:s="library://ns.adobe.com/flex/spark">
 
    <Style source="descendants.css" />
 
    <s:layout>
        <s:VerticalLayout />
    </s:layout>
 
    <s:VGroup>
        <s:SimpleText>Text in a VGroup</s:SimpleText>
    </s:VGroup>
 
    <s:HGroup>
        <s:SimpleText id="red">Text in an HGroup</s:SimpleText>
    </s:HGroup>
 
</s:Application>

@namespace "library://ns.adobe.com/flex/spark";
 
VGroup SimpleText {
    font-size: 24pt;
}   
 
HGroup SimpleText {
    text-decoration: underline;
}   
 
#red {  
    color: #ff0000;
}