Ok so i'm trying to make a div the size of the window the user is using. I want it to auto adjust to the width / height of there page depending on there resolution, or even if they simply re-size there browser. Normally I would let things go and just try and figure it out over time when I think it's going to be too much work, but this makes no sense to me. I posted my jsbin below, and to me it "should" work perfectly. Please if someone can shed some light onto why this is not it would be beyond helpful!
Thank you all in advance!