Padding of 0px disables margin

Hi,

when I have two nested divs, the inner one with a margin-bottom and
the outer one with a padding-bottom, the margin of the inner div is
ignored when I set the padding of the outer div to 0.

Look at this example:
http://kundenweb.creations.de/usenet...fulpadding.htm

Since this is valid in IE and Firefox it's probably the desired
behaviour, but where is it defined in the spec?

Regards,
André

In article
<49144485-582d-49ad-9763-f9966b1aec16 (AT) b9g2000prh (DOT) googlegroups.com>,
André Hänsel <andre (AT) webkr (DOT) de> wrote:

Hi,

when I have two nested divs, the inner one with a margin-bottom and
the outer one with a padding-bottom, the margin of the inner div is
ignored when I set the padding of the outer div to 0.

Look at this example:
http://kundenweb.creations.de/usenet...fulpadding.htm

Since this is valid in IE and Firefox it's probably the desired
behaviour, but where is it defined in the spec?

You might also notice that a border on the containing div also triggers
the margin to show on the contained element

--
dorayme

In article
<doraymeRidThis-FB1177.13125808042008 (AT) news-vip (DOT) optusnet.com.au>,
dorayme <doraymeRidThis (AT) optusnet (DOT) com.au> wrote:

In article
49144485-582d-49ad-9763-f9966b1aec16...oglegroups.com>,
André Hänsel <andre (AT) webkr (DOT) de> wrote:

Hi,

when I have two nested divs, the inner one with a margin-bottom and
the outer one with a padding-bottom, the margin of the inner div is
ignored when I set the padding of the outer div to 0.

Look at this example:
http://kundenweb.creations.de/usenet...fulpadding.htm

Since this is valid in IE and Firefox it's probably the desired
behaviour, but where is it defined in the spec?

You might also notice that a border on the containing div also triggers
the margin to show on the contained element

I assume you have looked at the CSS 8.3.1 and associated sections.

Perhaps a read of this might help you:

<http://complexspiral.com/publications/uncollapsing-margins/>

--
dorayme