Flip Addon

I thought it would be simple!
I have a flip addon on my home page - I would like to trigger a Hover (mouseover) command ot the flip on document loaded - ultimately I will use a delay timer.
I did give the flip a css class but now I realise there is no css attached to that - but to the flip-panel I think.
If anyone has any ideas I woud be very grateful to hear from you.
Thanks
Tony