Sander Reporter
	Description • 21 years ago

2003062408 - win98 (verified to still exist in recent nightly (winxp) by Sparr
in #mozillazine)
See the url for the testcase. Three block elements nested in each other, with
the outer and inner floating, and the outer having padding-top. If the middle
element is block and not floating, an amount of padding-bottom equal to the
padding-top seems to be acquired by one of the elements, though the
dom-inspector doesn't show values for it. Floating the middle element, or making
it inline, makes the behaviour go away.
I'm not even certain this is a bug, but the behaviour doesn't make any sense to
me, so I'm assuming so. Opera 7.0 doesn't show it.

	David Baron :dbaron:
	Comment 2 • 21 years ago

I fear this has something to do with the space manager using a different
coordinate system from everything else (see the comment in
nsBlockReflowState::RecoverStateFrom and the code in
nsBlockFrame::ComputeFinalSize that uses nsSpaceManager::YMost).

	Zoe Gillenwater
	Comment 3 • 18 years ago

I just ran into this today in a real site I'm working on. Actually, the top padding is not duplicated and applied as the bottom padding, but instead is added to the declared bottom padding. So if the top padding is 100px and the bottom padding is 0, the rendered bottom padding is 100px. If the top padding is 100px and the bottom padding is 50px, the rendered bottom padding is 150px. You can see this here:
http://www.pixelsurge.com/experiment/FF-bug_floats-padding-dup.html

I hope this can get fixed soon.

	Zoe Gillenwater
	Comment 4 • 18 years ago

I just ran into this today in a real site I'm working on. Actually, the top padding is not duplicated and applied as the bottom padding, but instead is added to the declared bottom padding. So if the top padding is 100px and the bottom padding is 0, the rendered bottom padding is 100px. If the top padding is 100px and the bottom padding is 50px, the rendered bottom padding is 150px. You can see this here:
http://www.pixelsurge.com/experiment/FF-bug_floats-padding-dup.html

I hope this can get fixed soon.

	Zoe Gillenwater
	Comment 5 • 18 years ago

Sorry for the double post -- don't know how that happened.

	Boris Zbarsky [:bzbarsky]
	Comment 6 • 17 years ago

This got fixed by the reflow branch landing.

	Boris Zbarsky [:bzbarsky]
	Comment 8 • 17 years ago

Checked in test.