JSFiddle - React, Tailwind, and code Playground

by Paco86

HTML

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

CSS

.outer {
  width: 100%;
  height: 300px;
  background-color: #efefef;
}

.inner {
  background-color: #000;
  margin: 0 auto;
  width: 80%;
  min-width: 500px;
  height: 300px;
}