Okay, question because I'm driving myself crazy. Is there some reason why I can't use Z-Index to put a Gif on top of a table?

I ask because I made a gif of Hogwarts house hourglasses with cutouts of transparency. I was going to put a table behind it and use changing values to slide the sand up and down the hourglasses. It was all theoretically awesome and I can't get the image to show up when I set it as a DIV layer on top.

Any tips?