JSFiddle - React, Tailwind, and code Playground

HTML

<script src="http://fb.me/react-with-addons-0.11.0.js"></script>
<script src="http://fb.me/JSXTransformer-0.11.0.js"></script>
<link rel="stylesheet" href="http://github.hubspot.com/odometer/themes/odometer-theme-digital.css">
<script src="http://github.hubspot.com/odometer/odometer.js"></script>
<script src="http://fb.me/react-js-fiddle-integration.js"></script>

JavaScript 1.7

OdometerComponent = React.createClass({
  componentDidMount: function(){
     this.odometer = new Odometer({
      el: this.getDOMNode(),
      value: this.props.value,
      format: '',
      theme: 'digital',
    });
  },
  componentDidUpdate: function() {
   this.odometer.update(this.props.value)
  },
  render: function() {
    return React.DOM.div()
  }
})

setInterval(function() {
  React.renderComponent(OdometerComponent({value: Date.now()}), document.body);
}, 2500)