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Unspecified line-height may cause issues with reftests: eg anonymous-boxes-inheritance-001

From: Gérard Talbot <css21testsuite@gtalbot.org>
Date: Sat, 26 Nov 2011 20:31:16 -0800
Message-ID: <c21a47135314dc10df9104b986066f0f.squirrel@gtalbot.org>
To: "Public CSS test suite mailing list" <public-css-testsuite@w3.org>
[resending this to the correct mailing list this time!]
Hello,

Some testcases do not define line-height when setting font-size and this
could lead to problems if reftests are made for these.

font: 1in Ahem;

could be using a 1 to 1.2 line-height value which could create
differences in testcases, namely tiny-but-noticeable-by-softwares gaps.

One example:
[nightly-unstable]
http://test.csswg.org/suites/css2.1/nightly-unstable/html4/anonymous-boxes-inheritance-001.htm

Firefox 8.0 will render a tiny white gap between the blue and orange
squares.

Firefox 8.0 uses a line-height of 97px (btw, I have no idea where such
value comes from) but it could have been 96px or 96 mult by 1.1
(~=106px) or 1.2 (~=115px) as well, therefore creating bigger vertical
gaps.

Gérard
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Received on Sunday, 27 November 2011 04:31:48 GMT

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