JQuery animate border without moving div

Question

I want to animate a div by first making it\'s border thicker by 5px on mouseenter, then decreasing the border by 5px on mouseleave, the tricky part is that I don\'t want the

Answer 1

Interesting issue... It works better by switching classes, but still it's not very smooth:

http://jsfiddle.net/dzTHB/13/