JSFiddle - React, Tailwind, and code Playground

HTML

<html>
    <body>
        <div id="myDiv"><span id="mySpan">test</span></div>
    <body>
</html>

CSS

#myDiv
{border:1px solid black; height:50px;width:200px;vertical-align:middle; line-height: 50px;}

#mySpan
{}