That's what it looks like to me with my browser maximized. How people design things like this and don't do a quick check to make sure it works well for different reasonable browser window dimensions is beyond me.
Yeah, that's what I eventually ended up doing. I only bothered to turn on my bookmark toolbar and use it in this case though because I had a particularly strong interest in reading this article. In most other cases I would have passed it by.
edit: oh, it's just a bit buggy. make your window narrower, and it disappears :) that makes it way better than most I've seen.