315620-2b.xhtml
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<style>
<![CDATA[
div { background: red; height: 3em; }
div:empty { background: lime; }
]]>
</style>
</head>
<body>
<div><![CDATA[ ]]></div>
</body>
</html>
