<th> in <tbody> removes borders around said cells

[sonovawolf]

<table class="pt-table">
  <thead>
    <tr>
      <th>Column header</th>
      <th>Column header</th>
      <th>Column header</th>
    </tr>
  </thead>
  <tbody>
    <tr>
      <th>Row header</td>
      <td>Table data</td>
      <td>Table data</td>
    </tr>

    <tr>
      <th>Row header</td>
      <td>Table data</td>
      <td>Table data</td>
    </tr>
  </tbody>
</table>

I would have expected the border between the first cell of the <thead> and the first cell of the <tbody> to stay.

[sonovawolf]

Looks like the selector is table.pt-table tbody tr:first-child td while it should include a th.

[llorca]

@thisisalessandro mind pushing a PR? sounds like right up your alley