I do not wish to be unkind, but this isn't very good piece of advice ;-)
ALWAYS include a doctype, preferably the strict dtd, but transitional will do. I would also suggest developing your layout in FireFox and add IE browser specific adjustments in seperate browser files. FireFox adheres to the standards, where the IE behaviour is very unpredictable. Many of the problems have been fixed in IE7, but ie6 is still widely used.
Kind regards,
rinze
Hope this helps !
Rinze
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