//Return the HTML code in render
//A ReactElement is a light, stateless, immutable, virtual representation of a DOM Element.
//ReactElements are the basic items in React-ish virtual DOM.
// What differs ReactComponent from ReactElement is - ReactComponents are stateful.
var CommentBox = React.createClass({
render: function() {
return (
<div className="commentBox">
Hello, world! I am a CommentBox.
</div>
);
}
});