Crate a Component

Create a simple ReactComponent

HTML

<script src="https://cdnjs.cloudflare.com/ajax/libs/babel-core/5.8.24/browser.js"></script>
<script src="https://fb.me/react-with-addons-0.14.0.js"></script>
<script src="https://fb.me/react-dom-0.14.0.js"></script>
<script src="https://facebook.github.io/react/js/jsfiddle-integration-babel.js"></script>

<div id="container">

</div>

Babel + JSX

var MyComponent = React.createClass({
    render: function(){
        return (
            <h1>Hello, world!</h1>
        );
    }
});

ReactDOM.render(
    <MyComponent/>,
    document.getElementById('container')
);