Linda H wrote:
Thank you Adam and others for responding to my question. I wasn't as clear as I should have been. I do understand the box model and what the differences are between padding and margins. I was wondering if there were some rules of thumb for which is better to use when it doesn't make any difference visually (no background, or background is set in a higher level box, and no border). I suppose that thinking about possible future redefinition of the style sheet or which is quirkier would influence choices.
If there is no visual difference between the two in a particular situation, then it is really just a personal choice at that point.
Are collapsing margins quirks or features? Where can I read about them?
Features. You actually expect and want adjacent vertical margins to collapse; you just don't know you do. :-) This article provides a good explanation:
http://www.complexspiral.com/publications/uncollapsing-margins/
Also, can anyone point me to a good tutorial on Doctypes, please?
Our wiki contains lots of info and links: http://css-discuss.incutio.com/?page=RenderingMode
This is my favorite article on the subject in general: http://www.communitymx.com/content/article.cfm?cid=E2F258C46D285FEE
Zoe
-- Zoe M. Gillenwater Design Specialist Highway Safety Research Center http://www.hsrc.unc.edu
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