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[RC6] c411-vt-mrgn-000 is incorrect: fractional pixel issue!

From: Gérard Talbot <css21testsuite@gtalbot.org>
Date: Wed, 14 Dec 2011 16:10:34 -0800
Message-ID: <3210e615c4706525e5e8b15fe7453f48.squirrel@gtalbot.org>
To: "Public CSS test suite mailing list" <public-css-testsuite@w3.org>
Hello,

While carefully crafting a reftest for

[nightly-unstable]
http://test.csswg.org/suites/css2.1/nightly-unstable/html4/c411-vt-mrgn-000.htm

[RC6]
http://test.csswg.org/suites/css2.1/20110323/html4/c411-vt-mrgn-000.htm

I noticed a 1px shift downward of the topmost white stripe in Chrome
16.0.912.63 and Konqueror 4.7.4.

p.one has a margin-bottom of 2cm (used value is 75px: it's not 74px!).

p.four has a margin-top of -1cm (used value is -37px).

The weird thing is that, later, there is another rounding issue which
seemingly "corrects", neutralizes the effect of the offset created
before and this makes it much more difficult to notice.

So, I am putting aside the reftest

http://www.gtalbot.org/BrowserBugsSection/css21testsuite/c411-vt-mrgn-000-ref.xht

while waiting for this test to be corrected.

regards, Gérard
-- 
Contributions to the CSS 2.1 test suite:
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CSS 2.1 Test suite RC6, March 23rd 2011:
http://test.csswg.org/suites/css2.1/20110323/html4/toc.html

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http://test.csswg.org/harness/

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Received on Thursday, 15 December 2011 00:14:00 GMT

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