JSFiddle - React, Tailwind, and code Playground

HTML

<table>
  <colgroup>
    <col style="background-color:red">
    <col style="text-align:left !important">
  </colgroup>
  <tr>
    <th>ISBN</th>
    <th>Title</th>
  </tr>
  <tr>
    <td>3476896</td>
    <td>My first HTML</td>
  </tr>
</table>

CSS

body > table > tbody > tr > th
{
    text-align:right;
}