JSFiddle - React, Tailwind, and code Playground

HTML

<div class="container" style="background:#0f0; overflow: hidden;">
    <div style="float: left;" >Words</div>
  </div>
  <div style="background:#f00; margin-top: 100px;">Words</div>

CSS

.container:after{
            content: "\0020";
            display: block;
            clear: both;
        }