react template

HTML

<script src="http://fb.me/react-with-addons-0.10.0.min.js"></script>
<script src="http://fb.me/react-js-fiddle-integration.js"></script>

CSS

.message-important {
    color: #f00;
}

.message-read {
    opacity: 0.5;
}

JavaScript 1.7

/**
* @jsx React.DOM
*/

var Example = React.createClass({
  render: function() {
    return (
      <div style={{
        color: 'white',
        backgroundColor: 'lightblue'
      }}>Test</div>
    );
  }
})

React.renderComponent(<Example/>, document.body);