JSFiddle - React, Tailwind, and code Playground

HTML

<div>

</div>
<span>
  
</span>

CSS

div {
  height: 200px;
  background-color: grey;
}

span {
  display: block;
  width: 200px;
  height: 200px;
  border-radius: 50%;
  margin: -100px 0 0 75px;
  background-color: red;
}