remove -webkit-transform: translateZ(0); because it breaks z-index properties

Hi,

Great library!

I read that the -webkit-transform: translateZ(0); CSS property was used to enable hardware acceleration and make transitions more fluid. Is that why it is used on that library?

I found that when using the Window zoom option, the z-index property that you set to the window container is canceled and does not work. The result is that when you have "absolutely" positionned elements on the page with z-indexes, they appear over the zoom window, even if their z-index property is lower.
I fixed that by removing the -webkit-transform property.