JSFiddle - React, Tailwind, and code Playground

by Nic Fontaine

HTML

<div id="outer">
<div id="inner">
</div>
</div>

CSS

#outer {
  width: 100%
  height: 40px;
  background: red;
}

#inner {
  position: absolute;
  background: green;
  left: 0;
}