- From: Koji Ishii <kojiishi@gmail.com>
- Date: Mon, 12 Jan 2015 00:26:52 +0900
- To: "www-style@w3.org" <www-style@w3.org>
- Cc: Jonathan Kew <jfkthame@gmail.com>, smontagu@smontagu.org, GĂ©rard Talbot <css21testsuite@gtalbot.org>
I'd like to propose to: 1. Defer 'sideways-left'[1] to Level 4, and 2. Make 'sideways' as a value alias to 'sideways-right', not as a switch between 'sideways-left' and 'sideways-right' by writing-mode. Currently, WebKit and Blink does not implement this value, and do #2 above. IE does not implement this property yet. I don't know the status of Gecko, but I'd like to sort this out before implementations pick different choices for the 'sideways' value. Currently the property is prefixed, so we could probably work out if truly needed, but I hear no complaints with the current WebKit/Blink implementations. One more thing to note on this value is that, a concern was raised before that all other values of this property only change orientation of characters, while this value changes the baseline as well. This difference makes implementing this value more complex than others. IIRC the discussion didn't last long, but I think it was not really satisfactory for the proposer. Other 3 values (mixed, upright, and sideways-right) are important for Chinese and Japanese vertical flow, while this value is for rarer use cases in other scripts. I propose that this value can be discussed further in Level 4, and I wish us not to introduce interoperability issues nor slow this spec down because of this value. [1] http://dev.w3.org/csswg/css-writing-modes-3/#valdef-text-orientation-sideways-left /koji
Received on Sunday, 11 January 2015 15:27:19 UTC