388666 - margin-top of first-child of a multi-column element having border-top not rendered

Status: RESOLVED DUPLICATE of bug 616722

(Core :: Layout: Block and Inline, defect)

Description

[Eli Friedman]

data:text/html,<div style="-moz-column-count:1; border:solid"><div style="margin-top:10em">asdf

Expected results:
There is a 10em margin before "asdf".

Actual results:
There is no margin before "asdf".

Comment 1

[Daniel.S]

margin-collapsing should not happen in this context, see bug 616722 comment 8

Comment 2

[Gérard Talbot]

Hello,

When I try the test in URL field, I get a 10em (160px) top margin above "asdf".

I am using
Firefox 22.0, buildID 20130620121849, Linux KDE 4.10.4, i686 (32bits), kernel version 3.8.0-25-generic.

WORKSFORME

I have verified with 1 other test 
(
eg
http://test.csswg.org/suites/css3-multicol/nightly-unstable/html4/multicol-margin-001.htm
you must manually insert the following declarations
    -moz-column-count: 3;
    -moz-column-gap: 0px;
into the inspector style of web developer tools
and then compare with its reference file:
http://test.csswg.org/suites/css3-multicol/nightly-unstable/html4/reference/multicol-margin-ref.htm
) 
where the first block child of a multi-column element has a margin-top and it is rendered as expected.

Gérard

Comment 3

[Daniel.S]

Just checked it.

This was fixed by bug 616722.