JSFiddle - React, Tailwind, and code Playground

HTML

<div id='parent'>
 <div id='child'>Text</div>
</div>

CSS

#parent {
  display: table-cell;
  width: 300px;
  height: 300px;
  vertical-align: middle;
  text-align: center;
    border: 1px solid black;
}

#child {
    display: inline-block;
    width:100px;
    height: 100px;
    border: 1px solid black;
}