chromium/third_party/blink/web_tests/css3/selectors3/xml/css3-modsel-182.xml

<?xml-stylesheet href="css3-modsel-182.css" type="text/css"?>
<test>
<p xmlns="http://www.w3.org/1999/xhtml">
<foo:bar xmlns:foo="http://www.example.org/">
This text should be green.
</foo:bar>
</p>
</test>