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Re: Control over collapsing margins

From: Patrick Garies <pgaries@fastmail.us>
Date: Wed, 29 Apr 2009 08:22:43 -0500
Message-ID: <49F854A3.5000502@fastmail.us>
To: David Hyatt <hyatt@apple.com>
CC: www-style@w3.org
David Hyatt wrote:
>  These properties exist in WebKit.  I proposed them for
>  standardization back when I implemented them and got a lukewarm
>  response, so never followed up.  I'll propose them again now in case
>  there is more interest.
>  -webkit-margin-top-collapse -webkit-margin-bottom-collapse
>  Supported values are: collapse - Do the collapse as normal. separate
>  - Don't collapse. discard - Do the collapse and discard the entire
>  result (this is actually how margins in table cells work for many
>  HTML elements in quirks mode).
>  dave (hyatt@apple.com)

The ability to suppress margin collapsing is definitely something that 
CSS needs. I've run into this problem numerous times when designing or 
troubleshooting HTML documents.

That said, I don't see a use case for the |discard| value that /authors/ 
would use. I'm also not sure that you really need to properties for both 
the top and bottom margins; suppressing them altogether via a single 
property would probably be enough.

— Patrick Garies
Received on Wednesday, 29 April 2009 13:23:35 UTC

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