375850 - Parent element's outer top edge incorrect position

Status: RESOLVED INVALID

(Firefox :: General, defect)

Description

[Jay]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1.3) Gecko/20070309 Firefox/2.0.0.3
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1.3) Gecko/20070309 Firefox/2.0.0.3

When there is a parent div with height specified and it has a child div with margin specified than the parents's top edge shifts down to child's top edge (excluding margin).

Reproducible: Always

Steps to Reproduce:
1. see the bug attached


Expected Results:  
The correct position of parent's top edge is at the same level with the child's top edge including the margin.

Comment 1

[Jay]

Attachment: Minimal testcase

Comment 2

[Dave Townsend [:mossop]]

No, margins collapse in CSS so unless there is anything other than margin
between the parents margin then the parent and child margins merge.