[CSS21] support for 'vertical-align' on :first-line should not be required

A group of us were discussing tests for which we don't have two
passing implementations.  For this test:
http://test.csswg.org/suites/css2.1/20110111/html4/first-line-pseudo-016.htm
the thing that causes WebKit to fail seems to be lack of support for
'vertical-align' on :first-line (and Opera's failure is likely
similar, related to what area the background of the :first-line
should be drawn on).

Since the behavior of 'vertical-align' on :first-line is not
particularly well defined (though the spec says it should be
"similar to an inline-level element"), we think that we should
remove 'vertical-align' from the list of properties in section
5.12.1 that are required to apply to 'vertical-align':
http://www.w3.org/TR/CSS21/selector.html#first-line-pseudo
and we should mark the test in question as a may.

-David

-- 
L. David Baron                                 http://dbaron.org/
Mozilla Corporation                       http://www.mozilla.com/

Received on Tuesday, 25 January 2011 23:34:53 UTC