JSFiddle - React, Tailwind, and code Playground
HTML
<table class="table1">
<tr class="row1">
<td class='cell11'>1-1</td>
<td>1-2</td>
<td>1-3</td>
</tr>
<tr class="row2">
<td class='cell21'>2-1</td>
<td>2-2</td>
<td>2-3</td>
</tr>
<tr class="row3">
<td class='cell31'>3-1</td>
<td>3-2</td>
<td>3-3</td>
</tr>
</table>
CSS
table {
border: 1px solid black;
background-color: white;
}
.colorRows {
background-color: yellow;
}
JavaScript
$('.row1').addClass("colorRows");
$(".cell31").closest("tr").addClass("colorRows");