296497 - Background doesn't render when element was *initially* out of view

Status: RESOLVED DUPLICATE of bug 201897

(Core :: Layout, defect)

Description

[lhunath]

User-Agent:       Opera/8.0 (X11; Linux i686; U; en)
Build Identifier: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7.8) Gecko/20050530

span { position: relative; }
div { position: absolute; background: red; right: 0; margin-right: 75%; }
<span><div>I have only partially filled background</div></span>

Reproducible: Always

Steps to Reproduce:
1. Make a relatively positioned element.
2. Insert an absolutely positioned element in it.
3. Make the second element out of view and give it a background.
4. Bring it back into view using the margin property.

Actual Results:  
The background is only partially filled; or not; or completely, this depends on 
how much of the second element was off the screen before the margin was applied.

Expected Results:  
The whole background should be filled (red).

Comment 1

[Andrew Gillespie]

<span><div>I have only partially filled background</div></span>

The code above is placing a block level element inside an in-line element. This
is not valid html and should not be displayed as described under expected results.

Comment 2

[Andrew Schultz]

I'm not sure how "margin-right: 75%" is supposed to bring it back on the screen.
 The width of the containing block is 0! (unless you have something else on the
page that contains the SPAN.  And the margin pushes the DIV farther off the
screen.  Try a trunk build.  I think you'll be unpleasantly surprised (AFAICT,
the rendering on the trunk is correct and is wrong on the 1.7 branch build you
tested).

Beyond that the background on the DIV looks fine to me (the little bit that's on
the screen).

dumping in layout, but please attach an HTML testcase that demonstrates the bug
and test with a trunk build.

Comment 3

[Boris Zbarsky [:bzbarsky]]

*** This bug has been marked as a duplicate of 201897 ***