JSFiddle - React, Tailwind, and code Playground

by tredio

HTML

<div class="parent">
    <div class="shadow"></div>
</div>

CSS

body{ background:#CCC;}
.parent{ width:400px; height:400px; overflow:hidden; margin:20px auto; background:#FFF; padding:0 10px;}
.shadow{ width:400px; height:100%; box-shadow:0 0 15px #000;}