JSFiddle - React, Tailwind, and code Playground

HTML

<div id="outer">
    <div id="inner">
        Hello world!
    </div>
</div>

CSS

#outer {
    width:500px; 
    height:200px; 
    background:#FFCCCC;
    margin:50px auto 0 auto;
    display:block;
}
#inner {
    background:#FFCC33;
    margin:50px 50px 50px 50px;
    padding:10px;
    display:block;
}