JSFiddle - React, Tailwind, and code Playground

HTML

<div>
    some content
</div>
<div>
    some content
</div

CSS

body {
    margin: 0;
    padding: 0;
}
div {
    border: 5px solid red;
    padding: 10px;
    margin: 10px;
    width: 50%;
    display: inline-block;
    -webkit-box-sizing: border-box;
	-moz-box-sizing: border-box;
	box-sizing: border-box;   
}