Doen't appear on Firefox

Hi !

Firstly thank you for all of your modules, they are really great !

I have a problem with Slideshow CK on Firefox, but I can't understand what append.
I have no conflict with Jquery, no JS error.

The slideshow appear on Chrome and IE but not on Firefox.
The div is #slideshow

Can you help me ?
Thank you for your help

Have a good day
Mathieu

I'm sorry... I searched for hours, and just after my post I found the solution.

I had a small top difference so I added this on my template :

@-moz-document url-prefix() {
.slideshow {
top:143px;
}
}

That was the problem.
Thank you, and sorry for the topic.

Mathieu