JSFiddle - React, Tailwind, and code Playground

by Naeel Maqsudov

HTML

<center>
  <div id="d1">1</div>
</center>
<br>

<div id="d2">2</div>

CSS

#d1{width:300px; height:100px;border: 1px solid red}

#d2{width:300px; height:100px;border: 1px solid red; margin: 0 auto}