JSFiddle - React, Tailwind, and code Playground

HTML

<div></div>

CSS

div {
    height: 200px;
    width: 200px;
    box-shadow: inset -1px 0 0 red, inset 0 -1px 0 red, inset 1px 0 0 red, inset 0 1px 0 red;
}