JSFiddle - React, Tailwind, and code Playground

HTML

<div class="centered-div">
    YOUR TEXT HERE
</div>

CSS

.centered-div {
    width: 500px;
    height: 500px;
    position: fixed;
    top: 50%;
    left: 50%;
    margin-left: -250px;
    margin-top: -250px;
    background: grey;
    color: #fff;
}