tests/visual/table/offset-parent-2.html

<!DOCTYPE html> <title>Basic Visual Test</title>

<style>
  @import '/reset.css';
  html,
  body {
    height: 1500px;
  }

  #reference {
    width: 200px;
    height: 200px;
    background-color: red;
    box-shadow: inset 0 0 0 1px black;
  }

  #popper {
    width: 100px;
    height: 100px;
    background-color: rebeccapurple;
    box-shadow: inset 0 0 0 1px black;
  }

  table {
    margin-top: 100px;
  }

  th {
    position: relative;
  }
</style>

<table>
  <tbody>
    <tr>
      <th>
        <div id="reference">Reference</div>
        <div id="popper">Popper</div>
      </th>
    </tr>
  </tbody>
</table>

<script type="module">
  import { createPopper } from '../dist/popper.js';
  const reference = document.querySelector('#reference');
  const popper = document.querySelector('#popper');

  window.instance = createPopper(reference, popper, {
    placement: 'right',
  });
</script>