I'm trying to create a site where the background image takes
up 100% of the screen, minus a 30px border around the app.
perimiter. The sizing method I'm trying to replicate is at
Notice that when the window is resized to any dimensions the
1) Resizes proportionately w/out distortion
2) Maintains its aspect ratio at all times
3) All other image information is clipped when the window is
resized unproportionately i.e. 30% high 100% wide.