JSFiddle - React, Tailwind, and code Playground

by Dmitry Britan

HTML

<div class="centered"></div>

CSS

.centered {
    position: fixed; /* or absolute */
    top: 50%;
    left: 50%;
    width: 200px;
    height:100px;
    margin: -50px 0 0 -100px;
    background: #f0f0f0;
}