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chromium/content/test/data/accessibility/html/menu.html 

<!DOCTYPE html>
<html>
<body>
<style>li { list-style-type: none; }</style>
<p>
  Menu is deprecated, but it may still be used semantically with list item children.
  For more history, see crbug.com/87553.
</p>

<menu>
  <li>Cats</li>
  <li>Dogs</li>
</menu>

</body>
</html>