参考までに。
対象 : WebKit Nightly r75294 (2011-01-08 03:37:18 UTC) on Mac.
2011/1/18 Ryosuke Niwa <rniwa@webkit.org>
> 2011/1/17 小澤 郁人 <f-ozawa@b-s-c.co.jp>
>
>> chromeは文字が横倒しです。
>>
>
> WebKit系ブラウザはMac以外ではvertical writing modeに対応していません。
>
> Glyphs in vertical text tests are rotated 90 degrees clockwise on Windows
> https://bugs.webkit.org/show_bug.cgi?id=48459
>
> Glyphs in vertical text tests are rotated 90 degrees clockwise on Chromium
> Windows
> https://bugs.webkit.org/show_bug.cgi?id=51450
>
> [GTK] Glyphs in vertical text tests are rotated 90 degrees clockwise
> https://bugs.webkit.org/show_bug.cgi?id=50619
>
> [Qt] Glyphs in vertical text tests are rotated 90 degrees clockwise
> https://bugs.webkit.org/show_bug.cgi?id=51584
>
> Best regards,
> Ryosuke Niwa
> Software Engineer
> Google Inc.
>
>
