JSFiddle - React, Tailwind, and code Playground

by luka kupunia

HTML

<div class="box">
  <div class="box1"></div>
</div>

CSS

div.box {
   background: red;
   position: relative;
}
div.box1 {
  width: 100px;
  height: 100px;
  position: relative;
  background: black;
}