Add and remove a class with animation
<p>I have written a script that changes the box's color in another box's hover:
<a href="http://jsfiddle.net/w5b9v/2/" rel="nofollow">http://jsfiddle.net/w5b9v/2/</a></p>

<p>How can I add animation to this transition?
Thanks in advance</p>
