chromium/third_party/blink/web_tests/css3/selectors3/xml/css3-modsel-18c.xml

<?xml-stylesheet href="css3-modsel-18c.css" type="text/css"?>
<test>
 <p xmlns="http://www.w3.org/1999/xhtml"><a href="#foo">Hover <strong>here</strong> and the background of <span>this text should go green</span>.</a></p>
</test>