What makes me ask this question is we can trick search engines by using CSS. For example; we can show them an <H1> which is only 1px in size etc. Moreover, this style is placed in an external javascript file unreadable by the crawlers. Im talking about something which can be done by CSS I discussed at
http://forums.seochat.com/showpost.p...39&postcount=8
Again my question is : Does using any CSS on a page can effect negatively on its rankins?