<html>
<script src="https://unpkg.com/react@16/umd/react.production.min.js"></script>
<script src="https://unpkg.com/react-dom@16/umd/react-dom.production.min.js"></script>
<script src="https://unpkg.com/babel-standalone@6.15.0/babel.min.js"></script>
<body>
<div id="mydiv"></div>
<div id="root"></div>
<script type="text/babel">
class Hello extends React.Component {
render() {
return <h1>Hello World !</h1>
}
}
ReactDOM.render(<Hello />, document.getElementById('mydiv'))
const myelement = <h1>I Love JSX !</h1>;
ReactDOM.render(myelement, document.getElementById('root'));
</script>
</body>
</html>