It took me a couple seconds to figure out there was content below the auto-resizing header image. I tried to click on both the "Documentation is easy" and "FLATDOC" text to see if either were links to the content before realizing there was a scroll bar.
I'd suggest not having such a large image, or at least resize it to only expand to a portion of the screen, to prevent confusion.
I'd suggest not having such a large image, or at least resize it to only expand to a portion of the screen, to prevent confusion.