helloWorld.html

<!DOCTYPE html>
<html>
<head>
	<title></title>
</head>
<body>
<main id="app"></main>
<script src="https://cdnjs.cloudflare.com/ajax/libs/react/15.4.1/react.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/react/15.4.1/react-dom.js"></script>
<script type="text/javascript">
	function Hola(props) {
		const name = props.name;

		return React.DOM.h1({
			id: 'Title',
		}, `Hola ${name}`);
	}

	const hola =  React.createElement(Hola, {
		name: 'Mardwin',
	});

	ReactDOM.render(
		hola,
		document.getElementById('app')
	);

	setTimeout(
			() => {
				ReactDOM.render(
					React.createElement(Hola, {name: 'Mardwin!'}),
					document.getElementById('app')
					);
			},
			1000
		)
</script>
</body>
</html>