JSFiddle - React, Tailwind, and code Playground
HTML
<div>
</div><div>
</div><div>
</div><div>
</div><div>
</div><div>
</div><div>
</div><div>
</div><div>
</div><div>
</div>CSS
div {background: #000; width: 50px; height: 50px; float: left; margin-right:10px; margin-bottom: 10px; }
div:nth-child(4) ~ div { background: #ff0000; }