JSFiddle - React, Tailwind, and code Playground

HTML

<div>
    <span>magix!</span>
</div>

CSS

div {
    background: red;
    width:100px;
    height: 100px;
    display:table;
}
div > span {
    display:table-cell;
    vertical-align:middle;
    text-align:center;
}