In my recent exploits using only CSS and HTML to layout a web page, I've noticed that I couldn't get a whole page to appear centrally on a page in IE5 or 5.5. This, of course, used to be dead easy when using table layouts.
Well, I've come across the solution on SimpleBits. Although I use a container DIV to centre the page in other browsers, IE5 and 5.5 needs the page text-align attribute set to center. Nice and easy!!