JSFiddle - React, Tailwind, and code Playground

HTML

<div class="parent">
  <div class="sub">sub 
  ncontent</div>
</div>

CSS

.parent{
  padding: 5% 0;
  border: 1px solid;
  }
.sub {
  padding: 10% 0;
  border: 1px solid red;
}