Hmm, I was mistaken. The first time I was playing around with it, the image wasn’t scaling with width, so I used that to assume the height of the browser (by assuming the bottom left hand must be visible on the “actual” screen), without that I can’t really say the browser window was large enough. I also miscalculated the browser size on a smaller monitor, after adjusting it, the text ends up below the fold along with ~1/4th of the button, just as CarlMud said.
So I feel dumb.
