JSFiddle - React, Tailwind, and code Playground

by Mukul kant

HTML

<div></div>

CSS

div {
    box-shadow: 0 9px 0px 0px white inset, 0 -9px 0px 0px white inset, 12px 0 15px -4px rgba(31, 73, 125, 0.8) inset, -12px 0 15px -4px rgba(31, 73, 125, 0.8) inset;
    width: 100px;
    height: 100px;
    margin: 50px;
    background: white;
}