I have tried many different css code and still no luck.

Here's what i'm looking for. For the Page Background I have and Image, For the tables on top I have there backgrounds set to black. I need the table backgrounds to be about 50% transparent. The images, the text, and the border cannot be transprent only the background of the tables. I'm sure its possibe I just haven't found it yet.

Thanks,
TheHolyMessiah