said by JAAulde 
:Third, differences that do exist are correctable if you understand the technology. For example, to quote KoolMoe
:
said by KoolMoe :
How come IE and Mozilla work with padding/margins differently? Doesn't the standard specify how that should be dealt with? If not, why not!
IE and the other guys have different 'box models' from each other when IE is in 'quirks' mode. Take IE out of quirks mode and things get much better. How do you get IE out of quirks mode? Ensure your DOCTYPE is valid and is the absolute first bit of text (no white space ahead of it either) in your served page. Answering the question as to why there are differences when IE does things its own way, see the above paragraph about vendors who go against the grain.
Query - If I am creating XHTML Pages and start them with:
