JSFiddle - React, Tailwind, and code Playground

HTML

<div class="page">
    <div class="one">One</div>
    <div class="two">Two</div>
</div>

CSS

body {
	background: gray;
}
div.page {
	color: white;
	background: black;
	max-width: 72em;
	margin: auto;
	padding: 1em;
}
div.one {
	background-color: red;
	width: 40%;
}
div.two {
	background-color: green;
	width: 120%;
}