JSFiddle - React, Tailwind, and code Playground

HTML

<div id="covering-element"></div>
<div>
  <div id="hidden-element"></div>
</div>

CSS

#covering-element {
  position: absolute;
  width: 100px;
  height: 100px;
  background: darksalmon;
  text-align: center;
}

#hidden-element {
  width: 25px;
  height: 25px;
  background: deeppink;
}