I too have placed the suggested code in the Quick CSS area and I am getting the same results as the others are.
The gallery will not load until you scroll down to it. I even launched different browsers (Firefox and Chrome).

What happens is that true you do not get the animation/sfx but the gallery loads as if the animation is being applied, even when you select the reload page button. Each item loads one at a time and in my case where I have several galleries on a page, the gallery will only load when you scroll down to it.

Regards,

David