483551 - Duplicated top margin at floatbox with clear when it is the first element

Status: RESOLVED DUPLICATE of bug 451791

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

Description

[Teoh Han Hui]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.0.6) Gecko/2009011913 Firefox/3.0.6
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 6.0; en-US; rv:1.9.1b3) Gecko/20090305 Firefox/3.1b3 (.NET CLR 3.5.30729)

Object: 'the parent element for floated elements with its last child's clear attribute set' (FLOATBOX)

Provided:
1. the FLOATBOX is the first element, and
2. the FLOATBOX does not have a border.

An additional top margin is inserted above the FLOATBOX when:
1. a top margin is set for the FLOATBOX's next sibling, or
2. a bottom margin is set for the FLOATBOX.

Reproducible: Always

Steps to Reproduce:
See attachment.
Actual Results:  
The top margin is applied both above and below the FLOATBOX PARENT.

Expected Results:  
The top margin should only be applied below the FLOATBOX PARENT.

Comment 1

[Teoh Han Hui]

Attachment: Simple Testcase