chromium/third_party/blink/web_tests/css3/selectors3/xml/css3-modsel-72.xml

<?xml-stylesheet href="css3-modsel-72.css" type="text/css"?>
<test>
 <div xmlns="http://www.w3.org/1999/xhtml">
  <p>This paragraph should have a green background and there should be no red anywhere.</p>
 </div>
</test>