JSFiddle - React, Tailwind, and code Playground

HTML

<body>
<div class="container">

</div>
</body>

CSS

body{
	background: #222;
	margin:0;
	padding: 0;
}
.container{
	margin:0 auto;
    display:table;
    padding:20px;
	width:100%;
	background: red;
	height: 100%;
}