JSFiddle - React, Tailwind, and code Playground

HTML

<table>
  <tr>
    <td>Month</td>
    <td>Savings</td>
  </tr>
  <tr>
    <td>January</td>
    <td>$100</td>
  </tr>
  <tr>
    <td>February</td>
    <td>$80</td>
  </tr>
</table>

CSS

td:first-child{
    -moz-border-radius:10px 0 0 10px;
    -webkit-border-radius:10px 0 0 10px;
}
td:last-child{
    -moz-border-radius:0 10px 10px 0;
    -webkit-border-radius:0 10px 10px 0;
}
td{background:red;}