JSFiddle - React, Tailwind, and code Playground

by Ben

HTML

<body>
  <div id="left">Left</div><div id="right"><p>Right</p><p>Right 2</p></div>
</body>

CSS

#left {
  display: inline-block;
  background: red;
  width: 20%;
  height: 100%;
  vertical-align: top;
}
#right {
  display: inline-block;
  background: green;
  width: 80%;
  height: 100%;
  vertical-align: top;
}