chromium/content/test/data/frame_tree/page_with_positioned_frame_pointer-events_none.html

<!DOCTYPE html>
<meta name="viewport" content="width=device-width, initial-scale=1">
<style>
iframe {
  position:absolute;
  top: 50px;
  left: 50px;
  width: 100px;
  height: 100px;
  pointer-events: none;
}
</style>
<html>
<body>
<iframe src="/cross-site/baz.com/title1.html"></iframe>
This page contains a positioned cross-origin iframe.
<iframe id="small" style="pointer-events: auto; width: 1px; height: 1px; top: 0px; left: 0px;" src="/cross-site/bar.com/title1.html"></iframe>
</body>
</html>