Actually, it was designed for Safari on Mac OS X.
Nothing on Mac renders web pages like Internet Explorer for Windows does, and IE6 is generally broken compared to other browsers these days, since the rendering code hasn't been touched in half a decade. I even used some different techniques and methods from what I normally would with this layout, so what does work in IE is based on intuition.
So no, you don't see the problem, which is that I don't have a PC.