abspos-container-change-dynamic-001.html

<!doctype html>
<meta charset="utf-8">
<title>Dynamic position change in table cell with abspos child</title>
<link rel="help" href="https://drafts.csswg.org/css-position-3/#position-property">
<link rel="help" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1815552">
<link rel="author" title="Emilio Cobos Álvarez" href="mailto:[email protected]">
<link rel="author" title="Mozilla" href="https://mozilla.org">
<link rel="match" href="abspos-container-change-dynamic-001-ref.html">
<table>
  <tbody>
    <tr>
      <td>A</td>
      <td id="target">B</td>
  </tbody>
</table>
<script>
  let target = document.getElementById("target");
  target.getBoundingClientRect();
  target.style.position = "relative";
  let abspos = document.createElement("div");
  abspos.style = `
    position: absolute;
    top: 0;
    left: 0;
    width: 100px;
    height: 100px;
    background-color: lime;
  `;
  target.appendChild(abspos);
</script>

chromium/third_party/blink/web_tests/external/wpt/css/css-tables/abspos-container-change-dynamic-001.html