JSFiddle - React, Tailwind, and code Playground

HTML

<div class="absolute">Hello</div>

CSS

div.absolute {
    width: 100%;
    border: 5px solid #000;
    background-color: #F00;
    position: absolute; top: 100px;
    box-sizing: border-box;
    -moz-box-sizing: border-box;
    -webkit-box-sizing: border-box;
    padding: 50px;
}