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Re: [css3-text-layout] margin-before/after/start/end etc. and :ttb pseudo-classes

From: MURATA Makoto (FAMILY Given) <eb2m-mrt@asahi-net.or.jp>
Date: Sat, 05 Jun 2010 10:13:43 +0900
To: www-style@w3.org
Message-Id: <20100605101343.9596.B794FC04@asahi-net.or.jp>
We are stuck.

Pseudo-selectors based on values specified in documents or stylesheets 
do not allow reasonable fallbacks from vertical writing to horizontal writing.

Pseudo-selectors based on the writing mode chosen by the user or browser
may cause circular interdependencies or conflicts.  Some people are thus strongly 
against.

New properties for specifying borders, etc. in relative to the writing direction 
chosen by the user or browser do have some implementation difficulties.  Some 
people are thus strongly against.

Recent implementations of EPUB in Japan have started to abuse existing margin, etc. 
properties by making them relative to the writing direction chosen by the user or viewer.
I know that the CSS WG has decided not to change the current definition of these 
properties.

As far as vertical writing is concerned, CSS is likely to fail, and I will have to try to
persuade IDPF not to use CSS for vertical writing.


Cheers,
Makoto
Received on Saturday, 5 June 2010 01:14:51 GMT

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