JSFiddle - React, Tailwind, and code Playground

HTML

<div>
<button>test</button>
<p>
hallo
</p>
</div>

CSS

p {
  
  background:red;
}

button {
  font-family:inherit;
  border:0;
  padding:0;
}

button:focus + p {
  position:absolute;
  bottom:0;
  background:yellow;
  
}