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Re: Questions on [RC6] anonymous-boxes-001

From: Gérard Talbot <css21testsuite@gtalbot.org>
Date: Tue, 15 Nov 2011 16:45:29 -0800
Message-ID: <1eb5ce28f67d5b1a8375f12850237d6c.squirrel@gtalbot.org>
To: "Boris Zbarsky" <bzbarsky@mit.edu>
Cc: "Public CSS test suite mailing list" <public-css-testsuite@w3.org>

Le Mar 15 novembre 2011 15:22, "Gérard Talbot" a écrit :
> Boris,
>
> [RC6]
> http://test.csswg.org/suites/css2.1/20110323/html4/anonymous-boxes-001.htm
>
> [nightly-unstable]
> http://test.csswg.org/suites/css2.1/nightly-unstable/html4/anonymous-boxes-001.htm
>
> 1- #child is floated left: why? I do not see why it would need to or
> what left-floating it accomplishes. #child and #background both have
> z-index: auto and #child follows after #background: so #child should
> overlap #background. #child has top: auto so it should be resolved as 0.
>
> 2- The assert text goes saying something that just isn't tested by the
> testcase code:
>
>   <meta name="assert" content="Anonymous block boxes are ignored when
> resolving         percentage values that would refer to it: the
> closest non-anonymous         ancestor box is used instead.">
>   <style type="text/css">
>     #parent { height: 200px; position: relative; }
>     #child { float: left; height: 50%; width: 100px; background: green;
> position: relative }
>     #background { position: absolute; top: 0; left: 0; width: 100px;
> height: 100px; background: red }
>   </style>
>  </head>
>  <body>
>    <p>There must be a green square below and no red.</p>
>    <div id="parent">
>      <div id="background"></div>
>      <div id="child"></div>&nbsp;<div></div>
>    </div>
>
> The only anonymous block box I see is represented by the non-breaking
> space and nothing can be referring to it anyway. #child is not inside an
> anonymous block box.
>
> "Anonymous block boxes are ignored when resolving percentage values that
> would refer to it: the closest non-anonymous ancestor box is used
> instead. For example, if the child of the anonymous block box inside the
> DIV above needs to know the height of its containing block to resolve a
> percentage height, then it will use the height of the containing block
> formed by the DIV, not of the anonymous block box."
> http://www.w3.org/TR/CSS21/visuren.html#anonymous-block-level


Proposed replacements:

http://www.gtalbot.org/BrowserBugsSection/css21testsuite/anonymous-boxes-001a.html

http://www.gtalbot.org/BrowserBugsSection/css21testsuite/anonymous-boxes-001b.html

regards, Gérard
-- 
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Received on Wednesday, 16 November 2011 00:46:04 GMT

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