Here is the example (works in Chrome, for this example I used only webkit prefixes):
Visit http://jsfiddle.net/HgJun/1/
I faced with the following situation:
Animation at a given time is applied to two elements. Blocks are animated simultaneously, for the same period of time using the jQuery.animate().
1) unit class "inner" changes transform: translateY coordinate
2) block with class "content" changes the height
While the animation is used, children of the block "footer" start to shake a little (vibrate), moving up and down to 1px or 2px.
This situation was observed with the following conditions:
Windows 8
Chrome 30
Firefox 24
Perhaps someone has already solved a similar problem?