JSFiddle - React, Tailwind, and code Playground

by Boba Poshtar

HTML

<div><span></span></div>

CSS

div {
  position: relative;
  height: 50px;
  border: 15px solid red;
}
span {
  position: absolute;
  left: 0;
  top: 0;
  width: 10px;
  height: 10px;
  border: 5px solid blue;
}