JSFiddle - React, Tailwind, and code Playground

HTML

<div id="test">zzz</div>

CSS

#test {
    background: blue;
    height:50px;
    position: relative;
    width: 50px;
}
#test:before {
    background: url("https://developers.google.com/_static/images/developers-logo.svg") repeat scroll 0 0 transparent;
    content: " ";
    display: block;
    height: 100px;
    position: absolute;
    width: 450px;
    z-index: -1;
}