A common problem when using Internet Explorer for Macintosh is seeing 'boxes' of text overlapping or shifted way to the right. Vicky Tickner is an ace web designer who has solved the problem on her site. See
http://www.vickytickner.34sp.com.
Vicky has produced her layout entirely in CSS. This allows her to
change the colour scheme and layout of her entire site by changing one CSS stylesheet. There is a demonstration of this on the website with the ability to choose between three colour schemes. Most browsers support the styling segment of CSS (font, colour, size, etc), even Netscape 4! The difficulty with this approach is that the various browsers implement the CSS box model in different ways. This website details one of the key differences
http://www.positioniseverything.net/floatmodel.html.
IE5 on the Macintosh doesn't understand the right statement correctly for the main content. Mozilla, Firebird, Opera etc. understand CSS correctly. The full description of the fix can be found at
http://www.dzr-web.com/misc/ie-right-positioning.
A good book on CSS is published by Glasshaus.
http://www.glasshaus.com/bookInfo.asp?bookId=59.
It should be noted that a web site will never look exactly the same in
any two web browsers however you code it, either using tables or CSS (or both).
Personally, I try to avoid both as far as possible to enable those with the most primitive software to acess our pages easily.