<html>
<head>
<script src="https://unpkg.com/react@15/dist/react.min.js"> </script>
<script src="https://unpkg.com/react-dom@15/dist/react-dom.min.js"></script>
<script src="https://unpkg.com/babel-standalone@6.15.0/babel.min.js"></script>
</head>
<body>
<script type="text/babel">
<div id="root"></div>
<script type="text/babel">
class FirstComponent extends React.Component {
constructor(props) {
super(props);
}
render() {
return (
// The JSX code you put here is what your component will render
);
}
};
</script>
</body>
</html>