JSFiddle - React, Tailwind, and code Playground

HTML

<div class="container">
  <div class="left"></div>
  <div class="right"></div>
</div>

CSS

.container {
  height: 200px;
  width: 100%;
  background: #222;
  padding: 5px;
  display: flex;
}

.left {
  height: 50px;
  width: 100px;
  background: #fff;
}

.right {
  height: 50px;
  width: 100px;
  background: #fff;
}