JSFiddle - React, Tailwind, and code Playground

HTML

<script src="https://unpkg.com/react@latest/dist/react.js"></script>
<script src="https://unpkg.com/react-dom@latest/dist/react-dom.js"></script>
<script src="https://unpkg.com/babel-standalone@latest/babel.min.js"></script>
 <div id="root"/>

Babel + JSX

var ex = <h1>It worked!</h1>;
ReactDOM.render(
  ex,
  document.getElementById('root')
);