== Description ==
If an object has a margin: #px auto; CSS decleration used for centering, adding an effect like 'shake' or 'bounce' causes the object to be aligned to the left (disrespecting the 'auto' part in the margin decleration) in the following browers:

Opera 9(.63), FF 2(.0.0.20), FF 3(.0.6) and IE 6

Also, the content below this object snaps to a lower position during the animation in the browsers mentioned above AND:

Safari 4(public beta 5528.16), WebKit? (nightly build), Chrome (1.0.154.48)

== Expected behaviour ==
The object should stay centered during the animation (of course, taking the offsets of the animation into account).