JSFiddle - React, Tailwind, and code Playground

HTML

<table>
  <tr>
    <td>abcd1</td>
    <td>abcd2</td>
    <td>abcd3</td>
  </tr>
  <tr>
    <td>aaaa</td>
    <td>bbbb</td>
    <td></td>
  </tr>
</table>

JavaScript

$('td:contains("aaaa")').css({border:'1px solid red'}).parent().find('td:eq(2)').append($('<span class="specialClass">some text</span>'));