JSFiddle - React, Tailwind, and code Playground

HTML

<div>It's working!</div>

CSS

html, body, div {
    height: 100%;
}
body {
    margin: 0;
}
div {
    box-sizing: border-box;
    position: relative;
    margin-top: -75%;
    padding-top: 75%;
    background: #d35400;
    color: #fff;
}