JSFiddle - React, Tailwind, and code Playground

HTML

<div></div>

CSS

div {
    width: 300px;
    height: 100px;
    background: #369;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.5), inset 0 0 10px rgba(0, 0, 0, 0.5);
}