Matt, On Sep 28, 2006, at 10:18 AM, Matt Dawson wrote:
> Here's a very basic question. I've set up a very basic example html > file > attached to this email. Attachments are stripped before the email is sent on to list members. If you could post page page and send us the url, we could see what you mean. > if I delete the red border on the content column, the column unsnaps > from the top of the body. Why is that? My best guess is 'Collapsing margins'. When 2 margins 'touch' they are allowed to overlap. This includes the margins of elements that are inside each other. For example if you have something like this <div id="header"> <h1>Header 1</h1> </div> The margin for the h1 can stick out the top of #header. which will look like extra white space above #header. Adding padding or borders to #header will keep the h1 margin from touching any other margin outside of #header and this will force the #header to grow to contain the h1 margin. Clear as mud, right? Here's a good article. <http://www.complexspiral.com/publications/uncollapsing-margins/> hth -- Roger Roelofs ______________________________________________________________________ css-discuss [EMAIL PROTECTED] http://www.css-discuss.org/mailman/listinfo/css-d IE7b2 testing hub -- http://css-discuss.incutio.com/?page=IE7 List wiki/FAQ -- http://css-discuss.incutio.com/ Supported by evolt.org -- http://www.evolt.org/help_support_evolt/
