JSFiddle - React, Tailwind, and code Playground

by MightyPork

HTML

<div id="foo">hooo</div>

CSS

#foo {
    width: 100px;
    height: 100px;
    background-color: green;
    
    margin: 0 auto;
}

html, body {
    height: 100%;
    width: 100%;
    padding: 0; margin: 0;
}

html {
    display: table;
}

body {    
    display: table-cell;
    vertical-align: middle;
}