chromium/third_party/blink/web_tests/css3/selectors3/xml/css3-modsel-41.xml

<?xml-stylesheet href="css3-modsel-41.css" type="text/css"?>
<test>
<p xmlns="http://www.w3.org/1999/xhtml">You should see before this paragraph the words GENERATED CONTENT over green background</p>
</test>