chromium/third_party/blink/web_tests/fast/lists/list-marker-and-layout-tree-change.html

<div>
  <ul>
    <li>
      <div>
        <div style="background:yellow; padding:50px;"></div>
        <small id="small">x</small>
      </div>
    </li>
  </ul>
</div>

<script>
if (window.testRunner)
  testRunner.waitUntilDone();

setTimeout(function() {
  // Cleanup
  document.getElementById(`small`).style.display=`none`;
  if (window.testRunner) {
    testRunner.notifyDone();
  }
}, 0);
</script>