JSFiddle - React, Tailwind, and code Playground

HTML

<br>
<div class="first"> I have a fixe dwidth</div>
<br>
<div class="second"> I have a fixe dwidth</div>

CSS

div{width:200px; background:#ddd;}

div.first{margin:0 auto;}
div.second{position:absolute;left:50%;margin-left:-100px}