Having a spot of bother with this... shake effect example
in firefox if I omit the line
$this.css({'margin-left':$this.position().left});
then the box is animated over to the left instead of in the centre. If I keep that line of code to fix firefox then chrome has the same problem.
Any tips on getting round this would be grand.
thanks in advance
the solution (not a happy one but it 'works' cross browser - I say cross browser, got ie9 and my work machine can't run virtual PC!!!!);