CSS Grid troubles
===

Here is code example: [http://jsfiddle.net/gubvw/3/][1]

If you'll slowly change screen size by dragging sizer in testing window you'll see that number columns scattered.  

![Column scattering][2]  

What can I do to fix this trouble? 


  [1]: http://jsfiddle.net/gubvw/3/
  [2]: http://i.stack.imgur.com/8OPSd.png