<!DOCTYPE html>
<link rel="author" title="Morten Stenshorne" href="mailto:mstensho@chromium.org">
<link rel="help" href="https://bugs.chromium.org/p/chromium/issues/detail?id=1308124">
<link rel="stylesheet" type="text/css" href="/fonts/ahem.css">
<style>
  body {
    margin: 0;
  }
  #mc {
    columns: 2;
    gap: 0;
    column-fill: auto;
    width: 600px;
    height: 20px;
    line-height: 20px;
    font: 20px/1 ahem;
  }
</style>
<div id="mc">
  <span id="span" style="backface-visibility:hidden; filter:blur(1px);">
    x<child id="firstchild">x</child><br>
    <child id="secondchild">x</child>x
  </span>
</div>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script>
  test(()=> {
    assert_equals(document.elementFromPoint(10, 10).id, "span");
  }, "First x");

  test(()=> {
    assert_equals(document.elementFromPoint(30, 10).id, "firstchild");
  }, "First child");

  test(()=> {
    assert_equals(document.elementFromPoint(310, 10).id, "secondchild");
  }, "Second child");

  test(()=> {
    assert_equals(document.elementFromPoint(330, 10).id, "span");
  }, "Last x");
</script>
