JSFiddle - React, Tailwind, and code Playground

by j08691

HTML

<div>

</div>

CSS

div {
        width: 100px;
        height: 100px;
        background: red;
        }
    div:before {
        content: "";
        display:block;
        width: 100px;
        height:30px;
        background: yellow;
    }