JSFiddle - React, Tailwind, and code Playground

by SerGen

HTML

<table>
  <tbody>
    <tr>
      <td>a</td>
      <td>b</td>
    </tr>
    <tr>
      <td colspan="2">c</td>
    </tr>
  </tbody>
</table>

CSS

td {
  padding: 10px;
}
td:first-child {
  border-bottom: 1px solid;
}