JSFiddle - React, Tailwind, and code Playground

HTML

<div>
    <ul>
        <li>AAAAAAAAAAA</li>
        <li>EEEEEEEEEEE</li>
        <li>IIIIIIIIIII</li>
        <li>OOOOOOOOOOO</li>
    </ul>
    <p>UUUUUUUUUUUU</p>
</div>

CSS

div{
    opacity:0.2;
    background:#ff0000;
}