Odd "shaking" effect when animating width with jQuery (only in Chrome!)
I was looking to this issue as well and this: -webkit-backface-visibility: hidden; solve my problem. I add this odd shaking while using CSS3 transform on a SVG.
More info can be found here: CSS3 transform rotate causing 1px shift in Chrome
Hope it helps
I changed your css: ul.nav li a, adding float: right to it and that fix the shake.
Anyway if it helps, I had the same problem when animating height of a div within another div with height:auto. Changing the height to a fix width solved it.
Hope it helps.
This seems to be a bug in Chrome version 21.0.1180.60 and may also be present in other versions. Nothing wrong with the code here and I guess we just leave it up to workarounds or submitting a bug report now.
Sigh.