JSFiddle - React, Tailwind, and code Playground

HTML

<div></div>

CSS

div{
    top: 100px;
    position: absolute;
    left: 100px;
    height: 100px;
    width: 100px;
    box-shadow: 10px 10px 10px rgba(0,0,0,.5), 0 0 10px rgba(255,0,0,.5) inset;
    border-radius: 5px;
    background: white;
}

body{background: #fff}