Heh, this is just one of those things that make you ram your head against walls...

That Voodoo You Do - Positioning to the Bottom Right

Basically, you have to give the container position: absolute; but no positioning data. You then set the inner div to position: relative; add your bottom: 0px; right: 0px; and it comes together nicely. I could have googled and hit the top result, but noooo, I just had to spend 15 futile minutes...