* 仕様書

[REFS[
-[1] [CITE@en[CSS Writing Modes Level 4]], [TIME[2020-09-05T23:08:25.000Z]], [TIME[2020-09-06T01:36:32.185Z]] <https://drafts.csswg.org/css-writing-modes/#propdef-direction>
]REFS]

* メモ


[3] 
[SAMP(CSS)[direction:ltr;]] [PP10]


[2]
[CITE@ja[激レアプロパティ directionの使いどころ | Blog hamashun.com]] ([TIME[2007-03-24 11:34:09 +09:00]] 版) <http://www.hamashun.com/blog/2007/01/direction.html>

[4] [CITE@EN[Extensible Stylesheet Language (XSL) Version 2.0]], [TIME[2018-10-09T13:22:10.000Z]], [TIME[2020-10-23T12:55:38.423Z]] <https://www.w3.org/TR/xslfo20/#writing-mode-related>

[6] [CITE@en-us[Timed Text Markup Language 1 (TTML1) (Third Edition)]], [TIME[2020-08-20T18:38:18.000Z]], [TIME[2020-10-23T14:35:59.388Z]] <https://www.w3.org/TR/ttml1/#style-attribute-direction>

[5] [CITE@en-us[Timed Text Markup Language 2 (TTML2) (2nd Edition)]], [TIME[2020-07-28T01:59:54.000Z]], [TIME[2020-10-23T14:32:37.583Z]] <https://w3c.github.io/ttml2/#style-attribute-direction>