chromium/third_party/blink/web_tests/external/wpt/svg/linking/reftests/use-descendant-combinator-ref.html

<!doctype html>
<meta charset=utf-8>
<title>CSS Test reference</title>
<p>
  You should see a green square, and no red.
</p>
<svg
  version="1.1"
  xmlns="http://www.w3.org/2000/svg"
  xmlns:xlink="http://www.w3.org/1999/xlink">
  <rect width="100" height="100" fill="green"/>
</svg>