JSFiddle - React, Tailwind, and code Playground

HTML

<table width=200 height=200 frameborder=1>
<tr class="fixed">
    <td>a</td>
    <td>b</td>
</tr>
<tr class="fixed">
    <td>c</td>
    <td>d</td>
</tr>    
</table>

CSS

.fixed td {
  width: 50px;
  height: 20px;
  display: block;
  background-color: green;
  border: 1px solid blue;
}