HTML - Table colgroup
Overview
Estimated time: 10–15 minutes
Example
<table class="report">
  <colgroup>
    <col class="col-name">
    <col class="col-amount">
  </colgroup>
  <tr><th>Name</th><th>Amount</th></tr>
  <tr><td>Item</td><td>$10</td></tr>
</table>