JSFiddle - React, Tailwind, and code Playground

HTML

<script src="//cdnjs.cloudflare.com/ajax/libs/react/0.10.0/react.js"></script>
<div id="x"></div>

CoffeeScript

{div, button} = React.DOM

X = React.createClass
  openWindow: ->
    window.open('http://euclidthegame.org/Level14.html', null, 'width=600,height=500')

  render: ->
    (div {},
      (button
        onClick: @openWindow
      , 'open new window') 
    )
    
React.renderComponent X(), document.getElementById('x')