JSFiddle - React, Tailwind, and code Playground

HTML

<div class='background' />

CSS

.background{
    background-image: url(http://blendr.io/wp-content/uploads/2014/05/Polygon-Background-2.jpg);
    background-size: cover;
    height:100%;
    
}
html, body{
    height:100%;
    width:100%;
}