<!DOCTYPE html><html><head>
<title>Attribute dash-separated value selector with universal namespace</title>
<style type="text/css">@namespace a url(http://www.example.org/a);
@namespace b url(http://www.example.org/b);
@namespace html url(http://www.w3.org/1999/xhtml);
*|p, *|q, *|r, *|s { display : block ; margin-bottom : 1em }
*|p, *|r { background-color : red }
*|*[*|lang|="en"], *|*[a|foo|="un-d"] { background-color : lime }
</style>
<link rel="author" title="Daniel Glazman" href="http://glazman.org/">
<link rel="author" title="Ian Hickson" href="mailto:ian@hixie.ch">
<link rel="help" href="https://www.w3.org/TR/css3-selectors/#selectors">
<meta name="flags" content=" namespace">
</head>
<body xmlns:a="http://www.example.org/a" xmlns:b="http://www.example.org/b">
<p lang="en-us"></p>
<q xmlns="http://www.example.org/a" a:foo="un-deux-trois"></q>
<q xmlns="http://www.example.org/a" a:foo="un-second-deuxieme-trois"></q>
<r xmlns="http://www.example.org/a" a:foo="un-d-trois"></r>
<s xmlns="http://www.example.org/b" b:foo="un-d-trois"></s>
</body></html>