JSFiddle - React, Tailwind, and code Playground

HTML

<div id="content">hello world!</div>

CSS

body, html {
    background-color:#FFF;
    height:100%;
}
#content {
    width:980px;
    height: 100%;
    background-color:#FCC;
    position: relative;
    display: block;
    margin-left: auto;
    margin-right: auto;
    top: 0px;
    bottom:0px;
    text-align:center;
}