JSFiddle - React, Tailwind, and code Playground

HTML

<body>
<table style="width:300px">
<tr>
  <td>Jill</td>
  <td>Smith</td>		
  <td>50</td>
  </tr>
<tr>
  <td>Eve</td>
  <td>Jackson</td>		
  <td class = "row_group">94</td>
</tr>
<tr>
  <td>John</td>
  <td>Doe</td>		
  <td class = "row_group">80</td>
</tr>
</table>

  </body>

CSS

table,th,td
{
border:1px solid black;
}
.row_group {
       display: table-row-group;
       height: 40px;
}
tr{
  height: 5px;
}