JSFiddle - React, Tailwind, and code Playground

HTML

<script src="http://fb.me/react-with-addons-0.12.0.js"></script>
<script src="http://fb.me/JSXTransformer-0.12.0.js"></script>
<script src="http://fb.me/react-js-fiddle-integration.js"></script>

JavaScript 1.7

var Hello = React.createClass({
    render: function () {
        var world = <World quay="456" key="123" />;
        return <div>Hello {world} - {world.key} </div>;
    }
});

var World = React.createClass({
    render: function() {
        return (<span>{this.key}{this.props.quay}{this.props.key}</span>);
    }
});
 
React.render(<Hello />, document.body);