Re: [CSS21] 10.1 Containing block for absolute elements with inline-level nearest positioned ancestor

On Mar 16, 2010, at 9:00 AM, Bruno Fassino wrote:

> On Tue, Mar 16, 2010 at 4:30 PM, Brad Kemper <brad.kemper@gmail.com> wrote:
>> 
>> On Mar 16, 2010, at 8:03 AM, Brad Kemper wrote:
>> 
>>> 
>>> On Mar 15, 2010, at 11:33 PM, Bruno Fassino wrote:
>>> 
>>>> 2. No current browser respects it.  In such cases Safari, Opera, IE8
>>>> makes the right side of the C.B. equal to the left side. Using the
>>>> 'negative width' abstraction, is like they set the width to zero, not
>>>> allowing it to become negative.  Only IE7 behaved according to the
>>>> spec.
>>>> 
>>>> Here is a more detailed page describing the situation:
>>>> http://www.brunildo.org/test/inline-cb.html
>>> 
>>> My recent Webkit Nightly download behaved like the renderings on that page said it should.
>> 
>> Whoops. Sorry, I thought the last two examples were renderings of how it was supposed to look. I didn't read carefully enough. Webkit is indeed using the left edge as the right edge in the examples, instead of using the right edge of the last box.
> 
> 
> Thanks Brad for the check.  I've added a picture of the "desired"
> rendering of those two cases, hoping to make the thing a bit less
> confusing...

Yes, thanks.

So, this makes me wonder how IE7 (in standards mode) handles a case like this:

.fullbox { 
	border:.5em solid orange; 
	background:url(big-image.png);
	top:0; bottom:0; left:0; right:0;
}

It seems like Webkit, Opera, IE8, and Firefox are all doing what they are so that they can draw such a box as a single rectangle. Does IE7 divide it in half, instead of keeping the positioned item whole? That doesn't seem correct either to me, but maybe it is?