[webkit-dev] Specification of deviations or specializations from CSS standard?

Leo Meyerovich lmeyerov at eecs.berkeley.edu
Sun Feb 21 20:34:46 PST 2010

I'm trying to write a (executable and analyzable) model of CSS2.1 (and 
some of 3). Much of the CSS standard is intentionally undefined to give 
leeway to browsers; however, that doesn't make it clear what browsers 
actually do (esp. when features interact). In hopes of tightening the 
standards etc., I'm trying to build models of what browsers actually do. 
Are there writeups of how WebKit deviates from the standard or what it 
picks as an interpretation for unspecified behavior in the standard? In 
particular, writeups closer to 
http://dev.w3.org/csswg/css3-tables-algorithms/Overview.src.htm than say 
the Quirksmode analyses.

My process has been to reverse engineer through tests and go through 
WebKit source code but there is obviously a lot of noise and missed 
detail this way. I'm not sure what the ideal correspondence between spec 
and implementation is, but I suspect having an analyzable/queryable 
non-performance oriented specification of what the WebKit algorithms are 
doing would help.

Thanks in advance,

- Leo

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