1220621-1f.html - mozsearch

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<!DOCTYPE html>

<style>

  table {

    table-layout: fixed;

    border: 1px solid black;

    width: 300px;

  td {

    background: yellow;

    border: 1px solid purple;

</style>

<table>

  <colgroup>

    <col>

    <col>

    <col>

    <col>

  </colgroup>

  <tbody>

    <td>One</td>

    <td>Two</td>

    <td>Three</td>

  </tbody>

</table>

<script>

  var t = document.querySelector("table");

  // Flush layout

  var width = t.offsetWidth;

  // Remove the one colgroup

  document.querySelector("colgroup").remove();

</script>