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chromium/third_party/blink/web_tests/external/wpt/css/css-break/hit-test-hidden-overflow.html 

<!DOCTYPE html>
<link rel="author" title="Morten Stenshorne" href="mailto:[email protected]">
<link rel="help" href="https://bugs.chromium.org/p/chromium/issues/detail?id=1330515">
<style>
  body { margin: 0; }
</style>
<div id="first" style="margin-top:20px; height:20px;">
  <div style="overflow:hidden; width:500px; margin-left:-100px; height:0;">
    <div style="columns:2; gap:0; width:200%;">
      <div style="position:relative; margin-left:-100%; height:800px;"></div>
    </div>
  </div>
</div>
<div id="second" style="height:20px;"></div>
<div id="log" style="margin-top:200px;"></div>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script>
  test(()=> { assert_equals(document.elementFromPoint(50, 10), document.documentElement); }, "above first block");
  test(()=> { assert_equals(document.elementFromPoint(50, 30), first); }, "first block");
  test(()=> { assert_equals(document.elementFromPoint(50, 50), second); }, "second block");
  test(()=> { assert_equals(document.elementFromPoint(50, 70), document.documentElement); }, "below first block");
</script>