JSFiddle - React, Tailwind, and code Playground

HTML

<div class="wrap"></div>

CSS

.wrap {
  width: 300px;
  height: 400px;
  background-color: #ccc;
  margin: 40px auto;
  box-shadow: 10px 10px 0 red,
              20px 20px 0 green,
              30px 30px 0 blue;
}