title: translateY/X causing scrollbars in Firefox
body: <p>When using <code>translateX</code> or <code>translateY</code>, the layout of the page on Firefox appears to be affected. Persistent scrollbars are generated, even though the CSS specification states that these properties shouldn't affect layout.</p>
  
  <p>For an example, go to <a href="http://daneden.me/animate" rel="noreferrer">http://daneden.me/animate</a> and click the 'fadeOutRightBig' animation. scrollbars will be generated on all browsers (that support CSS animations) but will persist in Firefox. Is this down to a mistake by Mozilla or by the other browsers? Any known solution?</p>