JSFiddle - React, Tailwind, and code Playground

HTML

<table>
    <tr class="faded">
        <td><div>testtesttesttestt</div></td>
        <td><div>testtsttesttesttt</div></td>
    </tr>
</table>

CSS

.faded{
    background-color: red;
    height: 100px;
    opacity: 0.4;
    filter: alpha(opacity=50);
}