JSFiddle - React, Tailwind, and code Playground

HTML

<table border="1">
  <tr>
    <td>Col 1</td>
    <td>Col 2</td>
    <td>Col 3</td>
  </tr>
  <tr>
    <td rowspan="2">Col 1</td>
    <td>Col 2</td>
    <td rowspan="2">Col 3</td>
  </tr>
  <tr>
    <td>Col 1</td>
  </tr>
  <tr>
    <td>Col 1</td>
    <td>Col 2</td>
    <td>Col 3</td>
  </tr>
  <tr>
    <td rowspan="2">Col 1</td>
    <td rowspan="2">Col 2</td>
    <td>Col 3</td>
  </tr>
  <tr>
    <td>Col 1</td>
  </tr>
  <tr>
    <td>Col 1</td>
    <td>Col 2</td>
    <td>Col 3</td>
  </tr>
</table>

JavaScript

$('tr:odd').css("background-color", "orange");