JSFiddle - React, Tailwind, and code Playground

HTML

<table>
    <tr><td>foo</td></tr>
    <tr><td>bar</td></tr>
</table>

CSS

table{
  border: 4px solid blue;
  border-spacing:0;
}

td{
    border-top: 4px solid red;
  }

tr:first-child>td{
    border:none;
  }