Dakuten on HTML

History:
(added -webkit-font-feature-settings: 'ccmp' 1;)
(added Iron 41 image of @alt)
(OSX)
(added <U+3041 U+3099>, non-standard @font)
(published)
About “Dakuten”:
https://en.wikipedia.org/wiki/Dakuten
About “Horizontal and vertical writing in East Asian scripts”:
https://en.wikipedia.org/wiki/Horizontal_and_vertical_writing_in_East_Asian_scripts
About “UTR #50: Unicode Vertical Text Layout”:
https://www.unicode.org/reports/tr50/
About “Glyph Composition/Decomposition (ccmp)” — Syntax for OpenType features in CSS
https://helpx.adobe.com/typekit/using/open-type-syntax.html#ccmp
<U+3041> HIRAGANA LETTER SMALL A
<U+3042> HIRAGANA LETTER A
<U+304B> HIRAGANA LETTER KA
<U+304C> HIRAGANA LETTER GA
<U+3099> COMBINING KATAKANA-HIRAGANA VOICED SOUND MARK
<U+309B> KATAKANA-HIRAGANA VOICED SOUND MARK

Rendering test (Windows)

Fonts:

Yu Gothic, Yu Mincho, Meiryo, MS Gothic, MS Mincho, IPAexGothic, IPAexMincho, MS PGothic, MS PMincho

Horizontal samples:

あ゛, あ゛, あ゛, あ゛, あ゛, あ゛, あ゛, あ゛, あ゛

あ゙, あ゙, あ゙, あ゙, あ゙, あ゙, あ゙, あ゙, あ゙

ぁ゙, ぁ゙, ぁ゙, ぁ゙, ぁ゙, ぁ゙, ぁ゙, ぁ゙, ぁ゙

か゛, か゛, か゛, か゛, か゛, か゛, か゛, か゛, か゛

, , , , , , , ,

が, が, が, が, が, が, が, が, が

A゛, A゛, A゛, A゛, A゛, A゛, A゛, A゛, A゛

A゙, A゙, A゙, A゙, A゙, A゙, A゙, A゙, A゙

Vertical samples (if possible):

あ゛, あ゛, あ゛, あ゛, あ゛, あ゛, あ゛, あ゛, あ゛

あ゙, あ゙, あ゙, あ゙, あ゙, あ゙, あ゙, あ゙, あ゙

ぁ゙, ぁ゙, ぁ゙, ぁ゙, ぁ゙, ぁ゙, ぁ゙, ぁ゙, ぁ゙

か゛, か゛, か゛, か゛, か゛, か゛, か゛, か゛, か゛

, , , , , , , ,

が, が, が, が, が, が, が, が, が

A゛, A゛, A゛, A゛, A゛, A゛, A゛, A゛, A゛

A゙, A゙, A゙, A゙, A゙, A゙, A゙, A゙, A゙

Results (Windows)

Windows 8.1 + Internet Explorer 11.0.9600.17631
Font:
Yu Gothic
Yu Mincho
Meiryo
MS Gothic
MS Mincho
IPAexGothic
IPAexMincho
MS PGothic
MS PMincho
U+3042 U+309B
あ゛ (Yu Gothic)
あ゛ (Yu Mincho)
あ゛ (Meiryo)
あ゛ (MS Gothic)
あ゛ (MS Mincho)
あ゛ (IPAexGothic)
あ゛ (IPAexMincho)
あ゛ (MS PGothic)
あ゛ (MS PMincho)
U+3042 U+3099
あ゙ (Yu Gothic)
あ゙ (Yu Mincho)
あ゙ (Meiryo)
あ゙ (MS Gothic)
あ゙ (MS Mincho)
あ゙ (IPAexGothic)
あ゙ (IPAexMincho)
あ゙ (MS PGothic)
あ゙ (MS PMincho)
U+3041 U+3099
ぁ゙ (Yu Gothic)
ぁ゙ (Yu Mincho)
ぁ゙ (Meiryo)
ぁ゙ (MS Gothic)
ぁ゙ (MS Mincho)
ぁ゙ (IPAexGothic)
ぁ゙ (IPAexMincho)
ぁ゙ (MS PGothic)
ぁ゙ (MS PMincho)
U+304B U+309B
か゛ (Yu Gothic)
か゛ (Yu Mincho)
か゛ (Meiryo)
か゛ (MS Gothic)
か゛ (MS Mincho)
か゛ (IPAexGothic)
か゛ (IPAexMincho)
か゛ (MS PGothic)
か゛ (MS PMincho)
U+304C
が (Yu Gothic)
が (Yu Mincho)
が (Meiryo)
が (MS Gothic)
が (MS Mincho)
が (IPAexGothic)
が (IPAexMincho)
が (MS PGothic)
が (MS PMincho)
U+304B U+3099
が (Yu Gothic)
が (Yu Mincho)
が (Meiryo)
が (MS Gothic)
が (MS Mincho)
が (IPAexGothic)
が (IPAexMincho)
が (MS PGothic)
が (MS PMincho)
U+0041 U+309B
A゛ (Yu Gothic)
A゛ (Yu Mincho)
A゛ (Meiryo)
A゛ (MS Gothic)
A゛ (MS Mincho)
A゛ (IPAexGothic)
A゛ (IPAexMincho)
A゛ (MS PGothic)
A゛ (MS PMincho)
U+0041 U+3099
A゙ (Yu Gothic)
A゙ (Yu Mincho)
A゙ (Meiryo)
A゙ (MS Gothic)
A゙ (MS Mincho)
A゙ (IPAexGothic)
A゙ (IPAexMincho)
A゙ (MS PGothic)
A゙ (MS PMincho)
U+3042 U+309B (vert)
あ゛ (vertical Yu Gothic)
あ゛ (vertical Yu Mincho)
あ゛ (vertical Meiryo)
あ゛ (vertical MS Gothic)
あ゛ (vertical MS Mincho)
あ゛ (vertical IPAexGothic)
あ゛ (vertical IPAexMincho)
あ゛ (vertical MS PGothic)
あ゛ (vertical MS PMincho)
U+3042 U+3099 (vert)
あ゙ (vertical Yu Gothic)
あ゙ (vertical Yu Mincho)
あ゙ (vertical Meiryo)
あ゙ (vertical MS Gothic)
あ゙ (vertical MS Mincho)
あ゙ (vertical IPAexGothic)
あ゙ (vertical IPAexMincho)
あ゙ (vertical MS PGothic)
あ゙ (vertical MS PMincho)
U+3041 U+3099 (vert)
ぁ゙ (vertical Yu Gothic)
ぁ゙ (vertical Yu Mincho)
ぁ゙ (vertical Meiryo)
ぁ゙ (vertical MS Gothic)
ぁ゙ (vertical MS Mincho)
ぁ゙ (vertical IPAexGothic)
ぁ゙ (vertical IPAexMincho)
ぁ゙ (vertical MS PGothic)
ぁ゙ (vertical MS PMincho)
U+304B U+309B (vert)
か゛ (vertical Yu Gothic)
か゛ (vertical Yu Mincho)
か゛ (vertical Meiryo)
か゛ (vertical MS Gothic)
か゛ (vertical MS Mincho)
か゛ (vertical IPAexGothic)
か゛ (vertical IPAexMincho)
か゛ (vertical MS PGothic)
か゛ (vertical MS PMincho)
U+304C (vert)
が (vertical Yu Gothic)
が (vertical Yu Mincho)
が (vertical Meiryo)
が (vertical MS Gothic)
が (vertical MS Mincho)
が (vertical IPAexGothic)
が (vertical IPAexMincho)
が (vertical MS PGothic)
が (vertical MS PMincho)
U+304B U+3099 (vert)
が (vertical Yu Gothic)
が (vertical Yu Mincho)
が (vertical Meiryo)
が (vertical MS Gothic)
が (vertical MS Mincho)
が (vertical IPAexGothic)
が (vertical IPAexMincho)
が (vertical MS PGothic)
が (vertical MS PMincho)
U+0041 U+309B (vert)
A゛ (vertical Yu Gothic)
A゛ (vertical Yu Mincho)
A゛ (vertical Meiryo)
A゛ (vertical MS Gothic)
A゛ (vertical MS Mincho)
A゛ (vertical IPAexGothic)
A゛ (vertical IPAexMincho)
A゛ (vertical MS PGothic)
A゛ (vertical MS PMincho)
U+0041 U+3099 (vert)
A゙ (vertical Yu Gothic)
A゙ (vertical Yu Mincho)
A゙ (vertical Meiryo)
A゙ (vertical MS Gothic)
A゙ (vertical MS Mincho)
A゙ (vertical IPAexGothic)
A゙ (vertical IPAexMincho)
A゙ (vertical MS PGothic)
A゙ (vertical MS PMincho)
Windows 8.1 + Firefox 35.0.1 (case WinXP?)
Font:
Yu Gothic
Yu Mincho
Meiryo
MS Gothic
MS Mincho
IPAexGothic
IPAexMincho
MS PGothic
MS PMincho
U+3042 U+309B
あ゛ (Yu Gothic)
あ゛ (Yu Mincho)
あ゛ (Meiryo)
あ゛ (MS Gothic)
あ゛ (MS Mincho)
あ゛ (IPAexGothic)
あ゛ (IPAexMincho)
あ゛ (MS PGothic)
あ゛ (MS PMincho)
U+3042 U+3099
あ゙ (Yu Gothic)
あ゙ (Yu Mincho)
あ゙ (Meiryo)
あ゙ (MS Gothic)
あ゙ (MS Mincho)
あ゙ (IPAexGothic)
あ゙ (IPAexMincho)
あ゙ (MS PGothic)
あ゙ (MS PMincho)
U+3041 U+3099
ぁ゙ (Yu Gothic)
ぁ゙ (Yu Mincho)
ぁ゙ (Meiryo)
ぁ゙ (MS Gothic)
ぁ゙ (MS Mincho)
ぁ゙ (IPAexGothic)
ぁ゙ (IPAexMincho)
ぁ゙ (MS PGothic)
ぁ゙ (MS PMincho)
U+304B U+3099
が (Yu Gothic)
が (Yu Mincho)
が (Meiryo)
が (MS Gothic)
が (MS Mincho)
が (IPAexGothic)
が (IPAexMincho)
が (MS PGothic)
が (MS PMincho)
U+0041 U+3099
A゙ (Yu Gothic)
A゙ (Yu Mincho)
A゙ (Meiryo)
A゙ (MS Gothic)
A゙ (MS Mincho)
A゙ (IPAexGothic)
A゙ (IPAexMincho)
A゙ (MS PGothic)
A゙ (MS PMincho)
Windows 8.1 + Firefox 38.0a1
Font:
Yu Gothic
Yu Mincho
Meiryo
MS Gothic
MS Mincho
IPAexGothic
IPAexMincho
MS PGothic
MS PMincho
U+3042 U+309B (vert)
あ゛ (vertical Yu Gothic)
あ゛ (vertical Yu Mincho)
あ゛ (vertical Meiryo)
あ゛ (vertical MS Gothic)
あ゛ (vertical MS Mincho)
あ゛ (vertical IPAexGothic)
あ゛ (vertical IPAexMincho)
あ゛ (vertical MS PGothic)
あ゛ (vertical MS PMincho)
U+3042 U+3099 (vert)
あ゙ (vertical Yu Gothic)
あ゙ (vertical Yu Mincho)
あ゙ (vertical Meiryo)
あ゙ (vertical MS Gothic)
あ゙ (vertical MS Mincho)
あ゙ (vertical IPAexGothic)
あ゙ (vertical IPAexMincho)
あ゙ (vertical MS PGothic)
あ゙ (vertical MS PMincho)
U+3041 U+3099 (vert)
ぁ゙ (vertical Yu Gothic)
ぁ゙ (vertical Yu Mincho)
ぁ゙ (vertical Meiryo)
ぁ゙ (vertical MS Gothic)
ぁ゙ (vertical MS Mincho)
ぁ゙ (vertical IPAexGothic)
ぁ゙ (vertical IPAexMincho)
ぁ゙ (vertical MS PGothic)
ぁ゙ (vertical MS PMincho)
U+304B U+3099 (vert)
が (vertical Yu Gothic)
が (vertical Yu Mincho)
が (vertical Meiryo)
が (vertical MS Gothic)
が (vertical MS Mincho)
が (vertical IPAexGothic)
が (vertical IPAexMincho)
が (vertical MS PGothic)
が (vertical MS PMincho)
U+0041 U+3099 (vert)
A゙ (vertical Yu Gothic)
A゙ (vertical Yu Mincho)
A゙ (vertical Meiryo)
A゙ (vertical MS Gothic)
A゙ (vertical MS Mincho)
A゙ (vertical IPAexGothic)
A゙ (vertical IPAexMincho)
A゙ (vertical MS PGothic)
A゙ (vertical MS PMincho)

Note: about:config layout.css.vertical-text.enabled (Nightly Build only)

Windows 8.1 + Firefox 35.0.1 + NVDA 2014.4jp
Unicode
Character
Audio
U+3042
あああ
U+3042 U+309B
あ゛あ゛あ゛
U+3042 U+3099
あ゙あ゙あ゙
This is same as “U+3042”.
U+304B
かかか
U+304B U+309B
か゛か゛か゛
U+304C
ががが
U+304B U+3099
ががが
This is same as “U+304C”.
U+0041
AAA
U+0041 U+309B
A゛A゛A゛
U+0041 U+3099
A゙A゙A゙

Note: “U+3041” and “U+3041 U+3099” are read equally.

Windows 8.1 + Opera 12.17
Font:
Yu Gothic
Yu Mincho
Meiryo
MS Gothic
MS Mincho
IPAexGothic
IPAexMincho
MS PGothic
MS PMincho
U+3042 U+309B
あ゛ (Yu Gothic)
あ゛ (Yu Mincho)
あ゛ (Meiryo)
あ゛ (MS Gothic)
あ゛ (MS Mincho)
あ゛ (IPAexGothic)
あ゛ (IPAexMincho)
あ゛ (MS PGothic)
あ゛ (MS PMincho)
U+3042 U+3099
あ゙ (Yu Gothic)
あ゙ (Yu Mincho)
あ゙ (Meiryo)
あ゙ (MS Gothic)
あ゙ (MS Mincho)
あ゙ (IPAexGothic)
あ゙ (IPAexMincho)
あ゙ (MS PGothic)
あ゙ (MS PMincho)
U+3041 U+3099
ぁ゙ (Yu Gothic)
ぁ゙ (Yu Mincho)
ぁ゙ (Meiryo)
ぁ゙ (MS Gothic)
ぁ゙ (MS Mincho)
ぁ゙ (IPAexGothic)
ぁ゙ (IPAexMincho)
ぁ゙ (MS PGothic)
ぁ゙ (MS PMincho)
U+304B U+3099
が (Yu Gothic)
が (Yu Mincho)
が (Meiryo)
が (MS Gothic)
が (MS Mincho)
が (IPAexGothic)
が (IPAexMincho)
が (MS PGothic)
が (MS PMincho)
U+0041 U+3099
A゙ (Yu Gothic)
A゙ (Yu Mincho)
A゙ (Meiryo)
A゙ (MS Gothic)
A゙ (MS Mincho)
A゙ (IPAexGothic)
A゙ (IPAexMincho)
A゙ (MS PGothic)
A゙ (MS PMincho)

Note: If “-webkit-font-feature-settings: 'ccmp' 1;” is applied, the same result as Firefox is brought.

Windows 8.1 + Midori 0.5.9
Font:
Yu Gothic
Yu Mincho
Meiryo
MS Gothic
MS Mincho
IPAexGothic
IPAexMincho
MS PGothic
MS PMincho
U+3042 U+309B
あ゛ (Yu Gothic)
あ゛ (Yu Mincho)
あ゛ (Meiryo)
あ゛ (MS Gothic)
あ゛ (MS Mincho)
あ゛ (IPAexGothic)
あ゛ (IPAexMincho)
あ゛ (MS PGothic)
あ゛ (MS PMincho)
U+3042 U+3099
あ゙ (Yu Gothic)
あ゙ (Yu Mincho)
あ゙ (Meiryo)
あ゙ (MS Gothic)
あ゙ (MS Mincho)
あ゙ (IPAexGothic)
あ゙ (IPAexMincho)
あ゙ (MS PGothic)
あ゙ (MS PMincho)
U+3041 U+3099
ぁ゙ (Yu Gothic)
ぁ゙ (Yu Mincho)
ぁ゙ (Meiryo)
ぁ゙ (MS Gothic)
ぁ゙ (MS Mincho)
ぁ゙ (IPAexGothic)
ぁ゙ (IPAexMincho)
ぁ゙ (MS PGothic)
ぁ゙ (MS PMincho)
U+304B U+309B
か゛ (Yu Gothic)
か゛ (Yu Mincho)
か゛ (Meiryo)
か゛ (MS Gothic)
か゛ (MS Mincho)
か゛ (IPAexGothic)
か゛ (IPAexMincho)
か゛ (MS PGothic)
か゛ (MS PMincho)
U+304B U+3099
が (Yu Gothic)
が (Yu Mincho)
が (Meiryo)
が (MS Gothic)
が (MS Mincho)
が (IPAexGothic)
が (IPAexMincho)
が (MS PGothic)
が (MS PMincho)
U+0041 U+309B
A゛ (Yu Gothic)
A゛ (Yu Mincho)
A゛ (Meiryo)
A゛ (MS Gothic)
A゛ (MS Mincho)
A゛ (IPAexGothic)
A゛ (IPAexMincho)
A゛ (MS PGothic)
A゛ (MS PMincho)
U+0041 U+3099
A゙ (Yu Gothic)
A゙ (Yu Mincho)
A゙ (Meiryo)
A゙ (MS Gothic)
A゙ (MS Mincho)
A゙ (IPAexGothic)
A゙ (IPAexMincho)
A゙ (MS PGothic)
A゙ (MS PMincho)
U+3042 U+309B (vert)
あ゛ (vertical Yu Gothic)
あ゛ (vertical Yu Mincho)
あ゛ (vertical Meiryo)
あ゛ (vertical MS Gothic)
あ゛ (vertical MS Mincho)
あ゛ (vertical IPAexGothic)
あ゛ (vertical IPAexMincho)
あ゛ (vertical MS PGothic)
あ゛ (vertical MS PMincho)
U+3042 U+3099 (vert)
あ゙ (vertical Yu Gothic)
あ゙ (vertical Yu Mincho)
あ゙ (vertical Meiryo)
あ゙ (vertical MS Gothic)
あ゙ (vertical MS Mincho)
あ゙ (vertical IPAexGothic)
あ゙ (vertical IPAexMincho)
あ゙ (vertical MS PGothic)
あ゙ (vertical MS PMincho)
U+3041 U+3099 (vert)
ぁ゙ (vertical Yu Gothic)
ぁ゙ (vertical Yu Mincho)
ぁ゙ (vertical Meiryo)
ぁ゙ (vertical MS Gothic)
ぁ゙ (vertical MS Mincho)
ぁ゙ (vertical IPAexGothic)
ぁ゙ (vertical IPAexMincho)
ぁ゙ (vertical MS PGothic)
ぁ゙ (vertical MS PMincho)
U+304B U+309B (vert)
か゛ (vertical Yu Gothic)
か゛ (vertical Yu Mincho)
か゛ (vertical Meiryo)
か゛ (vertical MS Gothic)
か゛ (vertical MS Mincho)
か゛ (vertical IPAexGothic)
か゛ (vertical IPAexMincho)
か゛ (vertical MS PGothic)
か゛ (vertical MS PMincho)
U+304B U+3099 (vert)
が (vertical Yu Gothic)
が (vertical Yu Mincho)
が (vertical Meiryo)
が (vertical MS Gothic)
が (vertical MS Mincho)
が (vertical IPAexGothic)
が (vertical IPAexMincho)
が (vertical MS PGothic)
が (vertical MS PMincho)
U+0041 U+309B (vert)
A゛ (vertical Yu Gothic)
A゛ (vertical Yu Mincho)
A゛ (vertical Meiryo)
A゛ (vertical MS Gothic)
A゛ (vertical MS Mincho)
A゛ (vertical IPAexGothic)
A゛ (vertical IPAexMincho)
A゛ (vertical MS PGothic)
A゛ (vertical MS PMincho)
U+0041 U+3099 (vert)
A゙ (vertical Yu Gothic)
A゙ (vertical Yu Mincho)
A゙ (vertical Meiryo)
A゙ (vertical MS Gothic)
A゙ (vertical MS Mincho)
A゙ (vertical IPAexGothic)
A゙ (vertical IPAexMincho)
A゙ (vertical MS PGothic)
A゙ (vertical MS PMincho)

Note: If “-webkit-font-feature-settings: 'ccmp' 1;” is applied, the same result as Firefox is brought.

Windows 8.1 + Amaya 11.4.7
Font:
sans-serif
serif
U+3042 U+309B
あ゛ (sans-serif)
あ゛ (serif)
U+3042 U+3099
あ゙ (sans-serif)
あ゙ (serif)
U+3041 U+3099
ぁ゙ (sans-serif)
ぁ゙ (serif)
U+304B U+309B
か゛ (sans-serif)
か゛ (serif)
U+304C
が (sans-serif)
が (serif)
U+304B U+3099
が (sans-serif)
が (serif)
U+0041 U+309B
A゛ (sans-serif)
A゛ (serif)
U+0041 U+3099
A゙ (sans-serif)
A゙ (serif)
Windows 8.1 + Lynx 2.8.6rel.4THjp
Character:
Numeric character reference
UTF-8 in @alt attribute
UTF-8 in textnode
U+3042 U+309B
あ゛ (NCR)
あ゛ (alt)
あ゛ (text)
U+3042 U+3099
あ&#x3099; (NCR)
あU3099 (alt)
あ (text)
U+3041 U+3099
ぁ&#x3099; (NCR)
ぁU3099 (alt)
ぁ (text)
U+304B U+309B
か゛ (NCR)
か゛ (alt)
か゛ (text)
U+304C
が (NCR)
が (alt)
が (text)
U+304B U+3099
か&#x3099; (NCR)
かU3099 (alt)
か (text)
U+0041 U+309B
A゛ (NCR)
A゛ (alt)
A゛ (text)
U+0041 U+3099
A&#x3099; (NCR)
AU3099 (alt)
A (text)
Windows 8.1 + Lynx 2.8.9dev.3
Character:
Numeric character reference
UTF-8 in @alt attribute
UTF-8 in textnode
U+3042 U+309B
a5"5 (NCR)
a5"5 (alt)
a5"5 (text)
U+3042 U+3099
a5&#x3099; (NCR)
a5絛82U99 (alt)
a5 (text)
U+3041 U+3099
A5&#x3099; (NCR)
A5U3099 (alt)
A5 (text)
U+304B U+309B
ka"5 (NCR)
ka"5 (alt)
ka"5 (text)
U+304C
ga (NCR)
ga (alt)
ga (text)
U+304B U+3099
ka&#x3099; (NCR)
ka絛82U99 (alt)
ka (text)
U+0041 U+309B
A"5 (NCR)
A"5 (alt)
A"5 (text)
U+0041 U+3099
A&#x3099; (NCR)
A絛82U99 (alt)
A (text)
Windows XP + Internet Explorer 6 (KB943922)
Font:
Meiryo
Meiryo lang=ja
MS Gothic
MS Gothic lang=ja
MS Mincho
MS Mincho lang=ja
MS PGothic
MS PGothic lang=ja
MS PMincho
MS PMincho lang=ja
U+3042 U+309B
あ゛ (Meiryo)
あ゛ (Meiryo ja)
あ゛ (MS Gothic)
あ゛ (MS Gothic ja)
あ゛ (MS Mincho)
あ゛ (MS Mincho ja)
あ゛ (MS PGothic)
あ゛ (MS PGothic ja)
あ゛ (MS PMincho)
あ゛ (MS PMincho ja)
U+3042 U+3099
あ゙ (Meiryo)
あ゙ (Meiryo ja)
あ゙ (MS Gothic)
あ゙ (MS Gothic ja)
あ゙ (MS Mincho)
あ゙ (MS Mincho ja)
あ゙ (MS PGothic)
あ゙ (MS PGothic ja)
あ゙ (MS PMincho)
あ゙ (MS PMincho ja)
U+3041 U+3099
ぁ゙ (Meiryo)
ぁ゙ (Meiryo ja)
ぁ゙ (MS Gothic)
ぁ゙ (MS Gothic ja)
ぁ゙ (MS Mincho)
ぁ゙ (MS Mincho ja)
ぁ゙ (MS PGothic)
ぁ゙ (MS PGothic ja)
ぁ゙ (MS PMincho)
ぁ゙ (MS PMincho ja)
U+304B U+309B
か゛ (Meiryo)
か゛ (Meiryo ja)
か゛ (MS Gothic)
か゛ (MS Gothic ja)
か゛ (MS Mincho)
か゛ (MS Mincho ja)
か゛ (MS PGothic)
か゛ (MS PGothic ja)
か゛ (MS PMincho)
か゛ (MS PMincho ja)
U+304C
が (Meiryo)
が (Meiryo ja)
が (MS Gothic)
が (MS Gothic ja)
が (MS Mincho)
が (MS Mincho ja)
が (MS PGothic)
が (MS PGothic ja)
が (MS PMincho)
が (MS PMincho ja)
U+304B U+3099
が (Meiryo)
が (Meiryo ja)
が (MS Gothic)
が (MS Gothic ja)
が (MS Mincho)
が (MS Mincho ja)
が (MS PGothic)
が (MS PGothic ja)
が (MS PMincho)
が (MS PMincho ja)
U+0041 U+309B
A゛ (Meiryo)
A゛ (Meiryo ja)
A゛ (MS Gothic)
A゛ (MS Gothic ja)
A゛ (MS Mincho)
A゛ (MS Mincho ja)
A゛ (MS PGothic)
A゛ (MS PGothic ja)
A゛ (MS PMincho)
A゛ (MS PMincho ja)
U+0041 U+3099
A゙ (Meiryo)
A゙ (Meiryo ja)
A゙ (MS Gothic)
A゙ (MS Gothic ja)
A゙ (MS Mincho)
A゙ (MS Mincho ja)
A゙ (MS PGothic)
A゙ (MS PGothic ja)
A゙ (MS PMincho)
A゙ (MS PMincho ja)
U+3042 U+309B (vert)
あ゛ (vertical Meiryo)
あ゛ (vertical Meiryo ja)
あ゛ (vertical MS Gothic)
あ゛ (vertical MS Gothic ja)
あ゛ (vertical MS Mincho)
あ゛ (vertical MS Mincho ja)
あ゛ (vertical MS PGothic)
あ゛ (vertical MS PGothic ja)
あ゛ (vertical MS PMincho)
あ゛ (vertical MS PMincho ja)
U+3042 U+3099 (vert)
あ゙ (vertical Meiryo)
あ゙ (vertical Meiryo ja)
あ゙ (vertical MS Gothic)
あ゙ (vertical MS Gothic ja)
あ゙ (vertical MS Mincho)
あ゙ (vertical MS Mincho ja)
あ゙ (vertical MS PGothic)
あ゙ (vertical MS PGothic ja)
あ゙ (vertical MS PMincho)
あ゙ (vertical MS PMincho ja)
U+3041 U+3099 (vert)
ぁ゙ (vertical Meiryo)
ぁ゙ (vertical Meiryo ja)
ぁ゙ (vertical MS Gothic)
ぁ゙ (vertical MS Gothic ja)
ぁ゙ (vertical MS Mincho)
ぁ゙ (vertical MS Mincho ja)
ぁ゙ (vertical MS PGothic)
ぁ゙ (vertical MS PGothic ja)
ぁ゙ (vertical MS PMincho)
ぁ゙ (vertical MS PMincho ja)
U+304B U+309B (vert)
か゛ (vertical Meiryo)
か゛ (vertical Meiryo ja)
か゛ (vertical MS Gothic)
か゛ (vertical MS Gothic ja)
か゛ (vertical MS Mincho)
か゛ (vertical MS Mincho ja)
か゛ (vertical MS PGothic)
か゛ (vertical MS PGothic ja)
か゛ (vertical MS PMincho)
か゛ (vertical MS PMincho ja)
U+304C (vert)
が (vertical Meiryo)
が (vertical Meiryo ja)
が (vertical MS Gothic)
が (vertical MS Gothic ja)
が (vertical MS Mincho)
が (vertical MS Mincho ja)
が (vertical MS PGothic)
が (vertical MS PGothic ja)
が (vertical MS PMincho)
が (vertical MS PMincho ja)
U+304B U+3099 (vert)
が (vertical Meiryo)
が (vertical Meiryo ja)
が (vertical MS Gothic)
が (vertical MS Gothic ja)
が (vertical MS Mincho)
が (vertical MS Mincho ja)
が (vertical MS PGothic)
が (vertical MS PGothic ja)
が (vertical MS PMincho)
が (vertical MS PMincho ja)
U+0041 U+309B (vert)
A゛ (vertical Meiryo)
A゛ (vertical Meiryo ja)
A゛ (vertical MS Gothic)
A゛ (vertical MS Gothic ja)
A゛ (vertical MS Mincho)
A゛ (vertical MS Mincho ja)
A゛ (vertical MS PGothic)
A゛ (vertical MS PGothic ja)
A゛ (vertical MS PMincho)
A゛ (vertical MS PMincho ja)
U+0041 U+3099 (vert)
A゙ (vertical Meiryo)
A゙ (vertical Meiryo ja)
A゙ (vertical MS Gothic)
A゙ (vertical MS Gothic ja)
A゙ (vertical MS Mincho)
A゙ (vertical MS Mincho ja)
A゙ (vertical MS PGothic)
A゙ (vertical MS PGothic ja)
A゙ (vertical MS PMincho)
A゙ (vertical MS PMincho ja)
Windows XP + Internet Explorer 8.0.6001.18702
About the same:
Windows 8.1 + Blink (Iron 40)
Difference 1:
Windows XP has no YuGothic/YuMincho
Difference 2:
Vertical <U+3042 U+3099> Meiryo Dakuten position (IE8: top-left; Blink: middle-right;)
Difference 3:
Vertical <U+3041 U+3099> Meiryo Dakuten position (IE8: top-left; Blink: middle-right;)
Difference 4:
Vertical <U+0041 U+3099> Meiryo Dakuten position (IE8: top-left; Blink: middle-right;)
Windows XP + Safari 5.1.7
About the same:
Windows 8.1 + Midori 0.5.9
Difference 1:
Windows XP has no YuGothic/YuMincho
Difference 2:
On Windows XP, Safari 5.1.7 draws MS (P)Mincho as bitmap font
Difference 3:
Default font-size of Safari are 16 pixels (like many browsers)
Windows XP + Firefox 35.0.1 (case Win8.1?)
Font:
Meiryo
MS Gothic
MS Mincho
IPAexGothic
IPAexMincho
MS PGothic
MS PMincho
U+3042 U+309B
あ゛ (Meiryo)
あ゛ (MS Gothic)
あ゛ (MS Mincho)
あ゛ (IPAexGothic)
あ゛ (IPAexMincho)
あ゛ (MS PGothic)
あ゛ (MS PMincho)
U+3042 U+3099
あ゙ (Meiryo)
あ゙ (MS Gothic)
あ゙ (MS Mincho)
あ゙ (IPAexGothic)
あ゙ (IPAexMincho)
あ゙ (MS PGothic)
あ゙ (MS PMincho)
U+3041 U+3099
ぁ゙ (Meiryo)
ぁ゙ (MS Gothic)
ぁ゙ (MS Mincho)
ぁ゙ (IPAexGothic)
ぁ゙ (IPAexMincho)
ぁ゙ (MS PGothic)
ぁ゙ (MS PMincho)
U+304B U+3099
が (Meiryo)
が (MS Gothic)
が (MS Mincho)
が (IPAexGothic)
が (IPAexMincho)
が (MS PGothic)
が (MS PMincho)
U+0041 U+3099
A゙ (Meiryo)
A゙ (MS Gothic)
A゙ (MS Mincho)
A゙ (IPAexGothic)
A゙ (IPAexMincho)
A゙ (MS PGothic)
A゙ (MS PMincho)

Appendix: <img> @alt styling

CSS & HTML
img {
  font-size: 2em;
  white-space: nowrap;
}

.v {
  /* for IE5.5+ */
  writing-mode: tb-rl;
}

html:root .v {
  -ms-writing-mode: tb-rl;
  -ms-text-orientation: mixed;
  -webkit-writing-mode: vertical-rl;
  -webkit-text-orientation: mixed;

  /* for Fx36+ (Nightly) */
  writing-mode: vertical-rl;
  text-orientation: mixed;
}

.Meiryo {
  font-family:
    /* escape for Presto */
    '\30E1\30A4\30EA\30AA',
    Meiryo,
    sans-serif;
}

<img class="v Meiryo"
  alt="&#x3042;&#x309B; (vertical Meiryo)"
  title="&#x3042;&#x309B; (vertical Meiryo)">
Test
あ゛ (vertical Meiryo)
Windows 8.1 + Internet Explorer 11.0.9600.17631
unstyled small text
Windows XP + Internet Explorer 8.0.6001.18702
image icon, and unstyled small text
Windows XP + Internet Explorer 6
image icon, and unstyled small text
Windows 8.1 + Firefox 35.0.1
styled text (but unsupported writing-mode)
Windows 8.1 + Firefox 38.0a1
styled text (vertical)
Windows 8.1 + Opera 12.17
styled text (but fixed height 22 pixel, text clipped)
Windows 8.1 + Blink (Iron 40)
styled text (Hiragana rotated)
Windows 8.1 + Blink (Iron 41)
styled text (vertical)
Windows 8.1 + Midori 0.5.9
styled text (but uneffective writing-mode)
Windows XP + Safari 5.1.7
styled blank box without text

Appendix: Rendering test about non-standard Windows vertical font

About “Vertical Writing and Printing”
https://msdn.microsoft.com/en-us/library/cc194859.aspx
Fonts (Windows vertical font):

@Yu Gothic, @Yu Mincho, @Meiryo, @MS Gothic, @MS Mincho, @IPAexGothic, @IPAexMincho, @MS PGothic, @MS PMincho

Horizontal samples (Windows vertical font):

あ゛, あ゛, あ゛, あ゛, あ゛, あ゛, あ゛, あ゛, あ゛

あ゙, あ゙, あ゙, あ゙, あ゙, あ゙, あ゙, あ゙, あ゙

ぁ゙, ぁ゙, ぁ゙, ぁ゙, ぁ゙, ぁ゙, ぁ゙, ぁ゙, ぁ゙

か゛, か゛, か゛, か゛, か゛, か゛, か゛, か゛, か゛

, , , , , , , ,

が, が, が, が, が, が, が, が, が

A゛, A゛, A゛, A゛, A゛, A゛, A゛, A゛, A゛

A゙, A゙, A゙, A゙, A゙, A゙, A゙, A゙, A゙

Vertical samples (Windows vertical font, if possible):

あ゛, あ゛, あ゛, あ゛, あ゛, あ゛, あ゛, あ゛, あ゛

あ゙, あ゙, あ゙, あ゙, あ゙, あ゙, あ゙, あ゙, あ゙

ぁ゙, ぁ゙, ぁ゙, ぁ゙, ぁ゙, ぁ゙, ぁ゙, ぁ゙, ぁ゙

か゛, か゛, か゛, か゛, か゛, か゛, か゛, か゛, か゛

, , , , , , , ,

が, が, が, が, が, が, が, が, が

A゛, A゛, A゛, A゛, A゛, A゛, A゛, A゛, A゛

A゙, A゙, A゙, A゙, A゙, A゙, A゙, A゙, A゙

<img> @alt styling test (Windows vertical font)
あ゛ (vertical @Meiryo)

Results (vertical font)

Windows 8.1 + Internet Explorer 11.0.9600.17631
Font:
@Yu Gothic
@Yu Mincho
@Meiryo
@MS Gothic
@MS Mincho
@IPAexGothic
@IPAexMincho
@MS PGothic
@MS PMincho
U+3042 U+309B
あ゛ (@Yu Gothic)
あ゛ (@Yu Mincho)
あ゛ (@Meiryo)
あ゛ (@MS Gothic)
あ゛ (@MS Mincho)
あ゛ (@IPAexGothic)
あ゛ (@IPAexMincho)
あ゛ (@MS PGothic)
あ゛ (@MS PMincho)
U+3042 U+3099
あ゙ (@Yu Gothic)
あ゙ (@Yu Mincho)
あ゙ (@Meiryo)
あ゙ (@MS Gothic)
あ゙ (@MS Mincho)
あ゙ (@IPAexGothic)
あ゙ (@IPAexMincho)
あ゙ (@MS PGothic)
あ゙ (@MS PMincho)
U+3041 U+3099
ぁ゙ (Yu Gothic)
ぁ゙ (Yu Mincho)
ぁ゙ (Meiryo)
ぁ゙ (MS Gothic)
ぁ゙ (MS Mincho)
ぁ゙ (IPAexGothic)
ぁ゙ (IPAexMincho)
ぁ゙ (MS PGothic)
ぁ゙ (MS PMincho)
U+304B U+309B
か゛ (@Yu Gothic)
か゛ (@Yu Mincho)
か゛ (@Meiryo)
か゛ (@MS Gothic)
か゛ (@MS Mincho)
か゛ (@IPAexGothic)
か゛ (@IPAexMincho)
か゛ (@MS PGothic)
か゛ (@MS PMincho)
U+304C
が (@Yu Gothic)
が (@Yu Mincho)
が (@Meiryo)
が (@MS Gothic)
が (@MS Mincho)
が (@IPAexGothic)
が (@IPAexMincho)
が (@MS PGothic)
が (@MS PMincho)
U+304B U+3099
が (@Yu Gothic)
が (@Yu Mincho)
が (@Meiryo)
が (@MS Gothic)
が (@MS Mincho)
が (@IPAexGothic)
が (@IPAexMincho)
が (@MS PGothic)
が (@MS PMincho)
U+0041 U+309B
A゛ (@Yu Gothic)
A゛ (@Yu Mincho)
A゛ (@Meiryo)
A゛ (@MS Gothic)
A゛ (@MS Mincho)
A゛ (@IPAexGothic)
A゛ (@IPAexMincho)
A゛ (@MS PGothic)
A゛ (@MS PMincho)
U+0041 U+3099
A゙ (@Yu Gothic)
A゙ (@Yu Mincho)
A゙ (@Meiryo)
A゙ (@MS Gothic)
A゙ (@MS Mincho)
A゙ (@IPAexGothic)
A゙ (@IPAexMincho)
A゙ (@MS PGothic)
A゙ (@MS PMincho)

Note: In “writing-mode: tb-rl;”, the result is same as the case of default font (IE11).

Windows 8.1 + Firefox 38.0a1
Font:
sans-serif
serif
sans-serif (vert)
serif (vert)
U+3042 U+309B
あ゛ (Gothic)
あ゛ (Mincho)
あ゛ (vertical Gothic)
あ゛ (vertical Mincho)
U+3042 U+3099
あ゙ (Gothic)
あ゙ (Mincho)
あ゙ (vertical Gothic)
あ゙ (vertical Mincho)
U+3041 U+3099
ぁ゙ (Gothic)
ぁ゙ (Mincho)
ぁ゙ (vertical Gothic)
ぁ゙ (vertical Mincho)
U+304B U+309B
か゛ (Gothic)
か゛ (Mincho)
か゛ (vertical Gothic)
か゛ (vertical Mincho)
U+304B U+3099
が (Gothic)
が (Mincho)
が (vertical Gothic)
が (vertical Mincho)
U+0041 U+309B
A゛ (Gothic)
A゛ (Mincho)
A゛ (vertical Gothic)
A゛ (vertical Mincho)
U+0041 U+3099
A゙ (Gothic)
A゙ (Mincho)
A゙ (vertical Gothic)
A゙ (vertical Mincho)
Windows 8.1 + Opera 12.17
Font:
@Yu Gothic
@Yu Mincho
@Meiryo
@MS Gothic
@MS Mincho
@IPAexGothic
@IPAexMincho
@MS PGothic
@MS PMincho
U+3042 U+309B
あ゛ (@Yu Gothic)
あ゛ (@Yu Mincho)
あ゛ (@Meiryo)
あ゛ (@MS Gothic)
あ゛ (@MS Mincho)
あ゛ (@IPAexGothic)
あ゛ (@IPAexMincho)
あ゛ (@MS PGothic)
あ゛ (@MS PMincho)
U+3042 U+3099
あ゙ (@Yu Gothic)
あ゙ (@Yu Mincho)
あ゙ (@Meiryo)
あ゙ (@MS Gothic)
あ゙ (@MS Mincho)
あ゙ (@IPAexGothic)
あ゙ (@IPAexMincho)
あ゙ (@MS PGothic)
あ゙ (@MS PMincho)
U+3041 U+3099
ぁ゙ (@Yu Gothic)
ぁ゙ (@Yu Mincho)
ぁ゙ (@Meiryo)
ぁ゙ (@MS Gothic)
ぁ゙ (@MS Mincho)
ぁ゙ (@IPAexGothic)
ぁ゙ (@IPAexMincho)
ぁ゙ (@MS PGothic)
ぁ゙ (@MS PMincho)
U+304B U+309B
か゛ (@Yu Gothic)
か゛ (@Yu Mincho)
か゛ (@Meiryo)
か゛ (@MS Gothic)
か゛ (@MS Mincho)
か゛ (@IPAexGothic)
か゛ (@IPAexMincho)
か゛ (@MS PGothic)
か゛ (@MS PMincho)
U+304C
が (@Yu Gothic)
が (@Yu Mincho)
が (@Meiryo)
が (@MS Gothic)
が (@MS Mincho)
が (@IPAexGothic)
が (@IPAexMincho)
が (@MS PGothic)
が (@MS PMincho)
U+304B U+3099
が (@Yu Gothic)
が (@Yu Mincho)
が (@Meiryo)
が (@MS Gothic)
が (@MS Mincho)
が (@IPAexGothic)
が (@IPAexMincho)
が (@MS PGothic)
が (@MS PMincho)
U+0041 U+309B
A゛ (@Yu Gothic)
A゛ (@Yu Mincho)
A゛ (@Meiryo)
A゛ (@MS Gothic)
A゛ (@MS Mincho)
A゛ (@IPAexGothic)
A゛ (@IPAexMincho)
A゛ (@MS PGothic)
A゛ (@MS PMincho)
U+0041 U+3099
A゙ (@Yu Gothic)
A゙ (@Yu Mincho)
A゙ (@Meiryo)
A゙ (@MS Gothic)
A゙ (@MS Mincho)
A゙ (@IPAexGothic)
A゙ (@IPAexMincho)
A゙ (@MS PGothic)
A゙ (@MS PMincho)
Windows 8.1 + Midori 0.5.9
Font:
sans-serif
serif
sans-serif (vert)
serif (vert)
U+3042 U+309B
あ゛ (Gothic)
あ゛ (Mincho)
あ゛ (vertical Gothic)
あ゛ (vertical Mincho)
U+3042 U+3099
あ゙ (Gothic)
あ゙ (Mincho)
あ゙ (vertical Gothic)
あ゙ (vertical Mincho)
U+3041 U+3099
ぁ゙ (Gothic)
ぁ゙ (Mincho)
ぁ゙ (vertical Gothic)
ぁ゙ (vertical Mincho)
U+304B U+309B
か゛ (Gothic)
か゛ (Mincho)
か゛ (vertical Gothic)
か゛ (vertical Mincho)
U+304B U+3099
が (Gothic)
が (Mincho)
が (vertical Gothic)
が (vertical Mincho)
U+0041 U+309B
A゛ (Gothic)
A゛ (Mincho)
A゛ (vertical Gothic)
A゛ (vertical Mincho)
U+0041 U+3099
A゙ (Gothic)
A゙ (Mincho)
A゙ (vertical Gothic)
A゙ (vertical Mincho)
Windows 8.1 + Amaya 11.4.7
Coincident:
Windows 8.1 + Amaya default font
i.e.:
font-family: '@font'” … 'font' unmatches
Windows XP + Internet Explorer 6 (KB943922)
Font:
@Yu Gothic (miss)
@Yu Mincho (miss)
@Meiryo
@Meiryo lang=ja
@MS Gothic
@MS Gothic lang=ja
@MS Mincho
@MS Mincho lang=ja
@MS PGothic
@MS PGothic lang=ja
@MS PMincho
@MS PMincho lang=ja
U+3042 U+309B
あ゛ (is not @YuGothic)
あ゛ (is not @YuMincho)
あ゛ (@Meiryo)
あ゛ (@Meiryo ja)
あ゛ (@MS Gothic)
あ゛ (@MS Gothic ja)
あ゛ (@MS Mincho)
あ゛ (@MS Mincho ja)
あ゛ (@MS PGothic)
あ゛ (@MS PGothic ja)
あ゛ (@MS PMincho)
あ゛ (@MS PMincho ja)
U+3042 U+3099
あ゙ (is not @YuGothic)
あ゙ (is not @YuMincho)
あ゙ (@Meiryo)
あ゙ (@Meiryo ja)
あ゙ (@MS Gothic)
あ゙ (@MS Gothic ja)
あ゙ (@MS Mincho)
あ゙ (@MS Mincho ja)
あ゙ (@MS PGothic)
あ゙ (@MS PGothic ja)
あ゙ (@MS PMincho)
あ゙ (@MS PMincho ja)
U+3041 U+3099
ぁ゙ (is not @YuGothic)
ぁ゙ (is not @YuMincho)
ぁ゙ (@Meiryo)
ぁ゙ (@Meiryo ja)
ぁ゙ (@MS Gothic)
ぁ゙ (@MS Gothic ja)
ぁ゙ (@MS Mincho)
ぁ゙ (@MS Mincho ja)
ぁ゙ (@MS PGothic)
ぁ゙ (@MS PGothic ja)
ぁ゙ (@MS PMincho)
ぁ゙ (@MS PMincho ja)
U+304B U+309B
か゛ (is not @YuGothic)
か゛ (is not @YuMincho)
か゛ (@Meiryo)
か゛ (@Meiryo ja)
か゛ (@MS Gothic)
か゛ (@MS Gothic ja)
か゛ (@MS Mincho)
か゛ (@MS Mincho ja)
か゛ (@MS PGothic)
か゛ (@MS PGothic ja)
か゛ (@MS PMincho)
か゛ (@MS PMincho ja)
U+304C
が (is not @YuGothic)
が (is not @YuMincho)
が (@Meiryo)
が (@Meiryo ja)
が (@MS Gothic)
が (@MS Gothic ja)
が (@MS Mincho)
が (@MS Mincho ja)
が (@MS PGothic)
が (@MS PGothic ja)
が (@MS PMincho)
が (@MS PMincho ja)
U+304B U+3099
が (is not @YuGothic)
が (is not @YuMincho)
が (@Meiryo)
が (@Meiryo ja)
が (@MS Gothic)
が (@MS Gothic ja)
が (@MS Mincho)
が (@MS Mincho ja)
が (@MS PGothic)
が (@MS PGothic ja)
が (@MS PMincho)
が (@MS PMincho ja)
U+0041 U+309B
A゛ (is not @YuGothic)
A゛ (is not @YuMincho)
A゛ (@Meiryo)
A゛ (@Meiryo ja)
A゛ (@MS Gothic)
A゛ (@MS Gothic ja)
A゛ (@MS Mincho)
A゛ (@MS Mincho ja)
A゛ (@MS PGothic)
A゛ (@MS PGothic ja)
A゛ (@MS PMincho)
A゛ (@MS PMincho ja)
U+0041 U+3099
A゙ (is not @YuGothic)
A゙ (is not @YuMincho)
A゙ (@Meiryo)
A゙ (@Meiryo ja)
A゙ (@MS Gothic)
A゙ (@MS Gothic ja)
A゙ (@MS Mincho)
A゙ (@MS Mincho ja)
A゙ (@MS PGothic)
A゙ (@MS PGothic ja)
A゙ (@MS PMincho)
A゙ (@MS PMincho ja)

Note: In “writing-mode: tb-rl;”, the result is same as the case of default font (IE6).

Windows XP + Internet Explorer 8.0.6001.18702
Font:
@Yu Gothic (miss)
@Yu Mincho (miss)
@Meiryo
@MS Gothic
@MS Mincho
@IPAexGothic
@IPAexMincho
@MS PGothic
@MS PMincho
U+3042 U+309B
あ゛ (@Yu Gothic)
あ゛ (@Yu Mincho)
あ゛ (@Meiryo)
あ゛ (@MS Gothic)
あ゛ (@MS Mincho)
あ゛ (@IPAexGothic)
あ゛ (@IPAexMincho)
あ゛ (@MS PGothic)
あ゛ (@MS PMincho)
U+3042 U+3099
あ゙ (@Yu Gothic)
あ゙ (@Yu Mincho)
あ゙ (@Meiryo)
あ゙ (@MS Gothic)
あ゙ (@MS Mincho)
あ゙ (@IPAexGothic)
あ゙ (@IPAexMincho)
あ゙ (@MS PGothic)
あ゙ (@MS PMincho)
U+3041 U+3099
ぁ゙ (@Yu Gothic)
ぁ゙ (@Yu Mincho)
ぁ゙ (@Meiryo)
ぁ゙ (@MS Gothic)
ぁ゙ (@MS Mincho)
ぁ゙ (@IPAexGothic)
ぁ゙ (@IPAexMincho)
ぁ゙ (@MS PGothic)
ぁ゙ (@MS PMincho)
U+304B U+309B
か゛ (@Yu Gothic)
か゛ (@Yu Mincho)
か゛ (@Meiryo)
か゛ (@MS Gothic)
か゛ (@MS Mincho)
か゛ (@IPAexGothic)
か゛ (@IPAexMincho)
か゛ (@MS PGothic)
か゛ (@MS PMincho)
U+304B U+3099
が (@Yu Gothic)
が (@Yu Mincho)
が (@Meiryo)
が (@MS Gothic)
が (@MS Mincho)
が (@IPAexGothic)
が (@IPAexMincho)
が (@MS PGothic)
が (@MS PMincho)
U+0041 U+309B
A゛ (@Yu Gothic)
A゛ (@Yu Mincho)
A゛ (@Meiryo)
A゛ (@MS Gothic)
A゛ (@MS Mincho)
A゛ (@IPAexGothic)
A゛ (@IPAexMincho)
A゛ (@MS PGothic)
A゛ (@MS PMincho)
U+0041 U+3099
A゙ (@Yu Gothic)
A゙ (@Yu Mincho)
A゙ (@Meiryo)
A゙ (@MS Gothic)
A゙ (@MS Mincho)
A゙ (@IPAexGothic)
A゙ (@IPAexMincho)
A゙ (@MS PGothic)
A゙ (@MS PMincho)

Note: In “writing-mode: tb-rl;”, the result is same as the case of default font (IE8).

Windows XP + Safari 5.1.7
Font:
@Yu Gothic (miss)
@Yu Mincho (miss)
@Meiryo
@MS Gothic
@MS Mincho
@IPAexGothic
@IPAexMincho
@MS PGothic
@MS PMincho
U+3042 U+309B
あ゛ (@Yu Gothic)
あ゛ (@Yu Mincho)
あ゛ (@Meiryo)
あ゛ (@MS Gothic)
あ゛ (@MS Mincho)
あ゛ (@IPAexGothic)
あ゛ (@IPAexMincho)
あ゛ (@MS PGothic)
あ゛ (@MS PMincho)
U+3042 U+3099
あ゙ (@Yu Gothic)
あ゙ (@Yu Mincho)
あ゙ (@Meiryo)
あ゙ (@MS Gothic)
あ゙ (@MS Mincho)
あ゙ (@IPAexGothic)
あ゙ (@IPAexMincho)
あ゙ (@MS PGothic)
あ゙ (@MS PMincho)
U+3041 U+3099
ぁ゙ (@Yu Gothic)
ぁ゙ (@Yu Mincho)
ぁ゙ (@Meiryo)
ぁ゙ (@MS Gothic)
ぁ゙ (@MS Mincho)
ぁ゙ (@IPAexGothic)
ぁ゙ (@IPAexMincho)
ぁ゙ (@MS PGothic)
ぁ゙ (@MS PMincho)
U+304B U+309B
か゛ (@Yu Gothic)
か゛ (@Yu Mincho)
か゛ (@Meiryo)
か゛ (@MS Gothic)
か゛ (@MS Mincho)
か゛ (@IPAexGothic)
か゛ (@IPAexMincho)
か゛ (@MS PGothic)
か゛ (@MS PMincho)
U+304B U+3099
が (@Yu Gothic)
が (@Yu Mincho)
が (@Meiryo)
が (@MS Gothic)
が (@MS Mincho)
が (@IPAexGothic)
が (@IPAexMincho)
が (@MS PGothic)
が (@MS PMincho)
U+0041 U+309B
A゛ (@Yu Gothic)
A゛ (@Yu Mincho)
A゛ (@Meiryo)
A゛ (@MS Gothic)
A゛ (@MS Mincho)
A゛ (@IPAexGothic)
A゛ (@IPAexMincho)
A゛ (@MS PGothic)
A゛ (@MS PMincho)
U+0041 U+3099
A゙ (@Yu Gothic)
A゙ (@Yu Mincho)
A゙ (@Meiryo)
A゙ (@MS Gothic)
A゙ (@MS Mincho)
A゙ (@IPAexGothic)
A゙ (@IPAexMincho)
A゙ (@MS PGothic)
A゙ (@MS PMincho)
U+3042 U+309B (vert)
あ゛ (vertical @Yu Gothic)
あ゛ (vertical @Yu Mincho)
あ゛ (vertical @Meiryo)
あ゛ (vertical @MS Gothic)
あ゛ (vertical @MS Mincho)
あ゛ (vertical @IPAexGothic)
あ゛ (vertical @IPAexMincho)
あ゛ (vertical @MS PGothic)
あ゛ (vertical @MS PMincho)
U+3042 U+3099 (vert)
あ゙ (vertical @Yu Gothic)
あ゙ (vertical @Yu Mincho)
あ゙ (vertical @Meiryo)
あ゙ (vertical @MS Gothic)
あ゙ (vertical @MS Mincho)
あ゙ (vertical @IPAexGothic)
あ゙ (vertical @IPAexMincho)
あ゙ (vertical @MS PGothic)
あ゙ (vertical @MS PMincho)
U+3041 U+3099 (vert)
ぁ゙ (vertical @Yu Gothic)
ぁ゙ (vertical @Yu Mincho)
ぁ゙ (vertical @Meiryo)
ぁ゙ (vertical @MS Gothic)
ぁ゙ (vertical @MS Mincho)
ぁ゙ (vertical @IPAexGothic)
ぁ゙ (vertical @IPAexMincho)
ぁ゙ (vertical @MS PGothic)
ぁ゙ (vertical @MS PMincho)
U+304B U+309B (vert)
か゛ (vertical @Yu Gothic)
か゛ (vertical @Yu Mincho)
か゛ (vertical @Meiryo)
か゛ (vertical @MS Gothic)
か゛ (vertical @MS Mincho)
か゛ (vertical @IPAexGothic)
か゛ (vertical @IPAexMincho)
か゛ (vertical @MS PGothic)
か゛ (vertical @MS PMincho)
U+304B U+3099 (vert)
が (vertical @Yu Gothic)
が (vertical @Yu Mincho)
が (vertical @Meiryo)
が (vertical @MS Gothic)
が (vertical @MS Mincho)
が (vertical @IPAexGothic)
が (vertical @IPAexMincho)
が (vertical @MS PGothic)
が (vertical @MS PMincho)
U+0041 U+309B (vert)
A゛ (vertical @Yu Gothic)
A゛ (vertical @Yu Mincho)
A゛ (vertical @Meiryo)
A゛ (vertical @MS Gothic)
A゛ (vertical @MS Mincho)
A゛ (vertical @IPAexGothic)
A゛ (vertical @IPAexMincho)
A゛ (vertical @MS PGothic)
A゛ (vertical @MS PMincho)
U+0041 U+3099 (vert)
A゙ (vertical @Yu Gothic)
A゙ (vertical @Yu Mincho)
A゙ (vertical @Meiryo)
A゙ (vertical @MS Gothic)
A゙ (vertical @MS Mincho)
A゙ (vertical @IPAexGothic)
A゙ (vertical @IPAexMincho)
A゙ (vertical @MS PGothic)
A゙ (vertical @MS PMincho)
CSS hacks for Windows vertical font:
.v {
  /* for IE5.5+ */
  writing-mode: tb-rl;
}

html:root .v {
  -ms-writing-mode: tb-rl;
  -ms-text-orientation: mixed;
  -webkit-writing-mode: vertical-rl;
  -webkit-text-orientation: mixed;

  /* for Fx36+ (Nightly) */
  writing-mode: vertical-rl;
  text-orientation: mixed;
}

.Meiryo {
  font-family:
    /* escape for Presto */
    '\30E1\30A4\30EA\30AA',
    Meiryo,
    sans-serif;
}

/* Blink & WebKit only */
.v .Meiryo:not(*:root) {
  font-family:
    '@Meiryo',
    sans-serif;
}

/* Opera 9.5-12.17 only */
_:-o-prefocus,
body:last-child .v .Meiryo {
  font-family:
    '@\30E1\30A4\30EA\30AA',
    '@Meiryo',
    sans-serif;
}

/* Opera 12.1x only */
@supports ( -o-object-fit: contain ) {
  body:last-child .v .Meiryo {
    font-family:
      '@\30E1\30A4\30EA\30AA',
      '@Meiryo',
      sans-serif;
  }
}

Rendering test (OS X)

Fonts (Mac):

YuGothic, YuMincho, Hiragino Kaku Gothic ProN, Hiragino Maru Gothic ProN, Hiragino Mincho ProN, Osaka-Mono, Osaka

Horizontal samples (Mac):

あ゛, あ゛, あ゛, あ゛, あ゛, あ゛, あ゛

あ゙, あ゙, あ゙, あ゙, あ゙, あ゙, あ゙

ぁ゙, ぁ゙, ぁ゙, ぁ゙, ぁ゙, ぁ゙, ぁ゙

か゛, か゛, か゛, か゛, か゛, か゛, か゛

, , , , , ,

が, が, が, が, が, が, が

A゛, A゛, A゛, A゛, A゛, A゛, A゛

A゙, A゙, A゙, A゙, A゙, A゙, A゙

Vertical samples (Mac, if possible):

あ゛, あ゛, あ゛, あ゛, あ゛, あ゛, あ゛

あ゙, あ゙, あ゙, あ゙, あ゙, あ゙, あ゙

ぁ゙, ぁ゙, ぁ゙, ぁ゙, ぁ゙, ぁ゙, ぁ゙

か゛, か゛, か゛, か゛, か゛, か゛, か゛

, , , , , ,

が, が, が, が, が, が, が

A゛, A゛, A゛, A゛, A゛, A゛, A゛

A゙, A゙, A゙, A゙, A゙, A゙, A゙

Results (OSX)

OS X Yosemite + Safari 8
Font:
YuGothic
YuMincho
Hiragino Kaku Gothic ProN
Hiragino Maru Gothic ProN
Hiragino Mincho ProN
Osaka-Mono
Osaka
U+3042 U+309B
あ゛ (YuGothic)
あ゛ (YuMincho)
あ゛ (Hiragino Kaku Gothic ProN)
あ゛ (Hiragino Maru Gothic ProN)
あ゛ (Hiragino Mincho ProN)
あ゛ (Osaka-Mono)
あ゛ (Osaka)
U+3042 U+3099
あ゙ (YuGothic)
あ゙ (YuMincho)
あ゙ (Hiragino Kaku Gothic ProN)
あ゙ (Hiragino Maru Gothic ProN)
あ゙ (Hiragino Mincho ProN)
あ゙ (Osaka-Mono)
あ゙ (Osaka)
U+3041 U+3099
ぁ゙ (YuGothic)
ぁ゙ (YuMincho)
ぁ゙ (Hiragino Kaku Gothic ProN)
ぁ゙ (Hiragino Maru Gothic ProN)
ぁ゙ (Hiragino Mincho ProN)
ぁ゙ (Osaka-Mono)
ぁ゙ (Osaka)
U+304B U+309B
か゛ (YuGothic)
か゛ (YuMincho)
か゛ (Hiragino Kaku Gothic ProN)
か゛ (Hiragino Maru Gothic ProN)
か゛ (Hiragino Mincho ProN)
か゛ (Osaka-Mono)
か゛ (Osaka)
U+304B U+3099
が (YuGothic)
が (YuMincho)
が (Hiragino Kaku Gothic ProN)
が (Hiragino Maru Gothic ProN)
が (Hiragino Mincho ProN)
が (Osaka-Mono)
が (Osaka)
U+0041 U+309B
A゛ (YuGothic)
A゛ (YuMincho)
A゛ (Hiragino Kaku Gothic ProN)
A゛ (Hiragino Maru Gothic ProN)
A゛ (Hiragino Mincho ProN)
A゛ (Osaka-Mono)
A゛ (Osaka)
U+0041 U+3099
A゙ (YuGothic)
A゙ (YuMincho)
A゙ (Hiragino Kaku Gothic ProN)
A゙ (Hiragino Maru Gothic ProN)
A゙ (Hiragino Mincho ProN)
A゙ (Osaka-Mono)
A゙ (Osaka)
U+3042 U+309B (vert)
あ゛ (vertical YuGothic)
あ゛ (vertical YuMincho)
あ゛ (vertical Hiragino Kaku Gothic ProN)
あ゛ (vertical Hiragino Maru Gothic ProN)
あ゛ (vertical Hiragino Mincho ProN)
あ゛ (vertical Osaka-Mono)
あ゛ (vertical Osaka)
U+3042 U+3099 (vert)
あ゙ (vertical YuGothic)
あ゙ (vertical YuMincho)
あ゙ (vertical Hiragino Kaku Gothic ProN)
あ゙ (vertical Hiragino Maru Gothic ProN)
あ゙ (vertical Hiragino Mincho ProN)
あ゙ (vertical Osaka-Mono)
あ゙ (vertical Osaka)
U+3041 U+3099 (vert)
ぁ゙ (vertical YuGothic)
ぁ゙ (vertical YuMincho)
ぁ゙ (vertical Hiragino Kaku Gothic ProN)
ぁ゙ (vertical Hiragino Maru Gothic ProN)
ぁ゙ (vertical Hiragino Mincho ProN)
ぁ゙ (vertical Osaka-Mono)
ぁ゙ (vertical Osaka)
U+304B U+309B (vert)
か゛ (vertical YuGothic)
か゛ (vertical YuMincho)
か゛ (vertical Hiragino Kaku Gothic ProN)
か゛ (vertical Hiragino Maru Gothic ProN)
か゛ (vertical Hiragino Mincho ProN)
か゛ (vertical Osaka-Mono)
か゛ (vertical Osaka)
U+304B U+3099 (vert)
が (vertical YuGothic)
が (vertical YuMincho)
が (vertical Hiragino Kaku Gothic ProN)
が (vertical Hiragino Maru Gothic ProN)
が (vertical Hiragino Mincho ProN)
が (vertical Osaka-Mono)
が (vertical Osaka)
U+0041 U+309B (vert)
A゛ (vertical YuGothic)
A゛ (vertical YuMincho)
A゛ (vertical Hiragino Kaku Gothic ProN)
A゛ (vertical Hiragino Maru Gothic ProN)
A゛ (vertical Hiragino Mincho ProN)
A゛ (vertical Osaka-Mono)
A゛ (vertical Osaka)
U+0041 U+3099 (vert)
A゙ (vertical YuGothic)
A゙ (vertical YuMincho)
A゙ (vertical Hiragino Kaku Gothic ProN)
A゙ (vertical Hiragino Maru Gothic ProN)
A゙ (vertical Hiragino Mincho ProN)
A゙ (vertical Osaka-Mono)
A゙ (vertical Osaka)

Note: “font-family: '@font'” unmatches

OS X Yosemite + Firefox 38.0a1 (case Win?)
Font:
YuGothic
YuMincho
Hiragino Kaku Gothic ProN
Hiragino Maru Gothic ProN
Hiragino Mincho ProN
Osaka-Mono
Osaka
U+3042 U+309B
あ゛ (YuGothic)
あ゛ (YuMincho)
あ゛ (Hiragino Kaku Gothic ProN)
あ゛ (Hiragino Maru Gothic ProN)
あ゛ (Hiragino Mincho ProN)
あ゛ (Osaka-Mono)
あ゛ (Osaka)
U+3042 U+3099
あ゙ (YuGothic)
あ゙ (YuMincho)
あ゙ (Hiragino Kaku Gothic ProN)
あ゙ (Hiragino Maru Gothic ProN)
あ゙ (Hiragino Mincho ProN)
あ゙ (Osaka-Mono)
あ゙ (Osaka)
U+3041 U+3099
ぁ゙ (YuGothic)
ぁ゙ (YuMincho)
ぁ゙ (Hiragino Kaku Gothic ProN)
ぁ゙ (Hiragino Maru Gothic ProN)
ぁ゙ (Hiragino Mincho ProN)
ぁ゙ (Osaka-Mono)
ぁ゙ (Osaka)
U+304B U+309B
か゛ (YuGothic)
か゛ (YuMincho)
か゛ (Hiragino Kaku Gothic ProN)
か゛ (Hiragino Maru Gothic ProN)
か゛ (Hiragino Mincho ProN)
か゛ (Osaka-Mono)
か゛ (Osaka)
U+304B U+3099
が (YuGothic)
が (YuMincho)
が (Hiragino Kaku Gothic ProN)
が (Hiragino Maru Gothic ProN)
が (Hiragino Mincho ProN)
が (Osaka-Mono)
が (Osaka)
U+0041 U+309B
A゛ (YuGothic)
A゛ (YuMincho)
A゛ (Hiragino Kaku Gothic ProN)
A゛ (Hiragino Maru Gothic ProN)
A゛ (Hiragino Mincho ProN)
A゛ (Osaka-Mono)
A゛ (Osaka)
U+0041 U+3099
A゙ (YuGothic)
A゙ (YuMincho)
A゙ (Hiragino Kaku Gothic ProN)
A゙ (Hiragino Maru Gothic ProN)
A゙ (Hiragino Mincho ProN)
A゙ (Osaka-Mono)
A゙ (Osaka)
U+3042 U+309B (vert)
あ゛ (vertical YuGothic)
あ゛ (vertical YuMincho)
あ゛ (vertical Hiragino Kaku Gothic ProN)
あ゛ (vertical Hiragino Maru Gothic ProN)
あ゛ (vertical Hiragino Mincho ProN)
あ゛ (vertical Osaka-Mono)
あ゛ (vertical Osaka)
U+3042 U+3099 (vert)
あ゙ (vertical YuGothic)
あ゙ (vertical YuMincho)
あ゙ (vertical Hiragino Kaku Gothic ProN)
あ゙ (vertical Hiragino Maru Gothic ProN)
あ゙ (vertical Hiragino Mincho ProN)
あ゙ (vertical Osaka-Mono)
あ゙ (vertical Osaka)
U+3041 U+3099 (vert)
ぁ゙ (vertical YuGothic)
ぁ゙ (vertical YuMincho)
ぁ゙ (vertical Hiragino Kaku Gothic ProN)
ぁ゙ (vertical Hiragino Maru Gothic ProN)
ぁ゙ (vertical Hiragino Mincho ProN)
ぁ゙ (vertical Osaka-Mono)
ぁ゙ (vertical Osaka)
U+304B U+309B (vert)
か゛ (vertical YuGothic)
か゛ (vertical YuMincho)
か゛ (vertical Hiragino Kaku Gothic ProN)
か゛ (vertical Hiragino Maru Gothic ProN)
か゛ (vertical Hiragino Mincho ProN)
か゛ (vertical Osaka-Mono)
か゛ (vertical Osaka)
U+304B U+3099 (vert)
が (vertical YuGothic)
が (vertical YuMincho)
が (vertical Hiragino Kaku Gothic ProN)
が (vertical Hiragino Maru Gothic ProN)
が (vertical Hiragino Mincho ProN)
が (vertical Osaka-Mono)
が (vertical Osaka)
U+0041 U+309B (vert)
A゛ (vertical YuGothic)
A゛ (vertical YuMincho)
A゛ (vertical Hiragino Kaku Gothic ProN)
A゛ (vertical Hiragino Maru Gothic ProN)
A゛ (vertical Hiragino Mincho ProN)
A゛ (vertical Osaka-Mono)
A゛ (vertical Osaka)
U+0041 U+3099 (vert)
A゙ (vertical YuGothic)
A゙ (vertical YuMincho)
A゙ (vertical Hiragino Kaku Gothic ProN)
A゙ (vertical Hiragino Maru Gothic ProN)
A゙ (vertical Hiragino Mincho ProN)
A゙ (vertical Osaka-Mono)
A゙ (vertical Osaka)
OS X Yosemite + Chrome 40.0.2214.115
About the same:
OS X Yosemite + Safari 8
Difference 1:

あ゛ (Osaka), か゛ (Osaka), A゛ (Osaka)

In horizontal Osaka, paddings of U+309B are larger than Safari 8

Difference 2:

あ゙ (Osaka),
ぁ゙ (Osaka)

In horizontal Osaka, U+3042 and U+3041 are same width

Difference 3:

あ゛ (Osaka), か゛ (Osaka), A゛ (Osaka)

In vertical Osaka, U+309B Dakuten position (Sf8: center, Ch40: top-left)

Difference 4:

A゛ (Osaka)
A゙ (Osaka)

In vertical Osaka, U+0041 is the same angles as other fonts

Note: “font-family: '@font'” unmatches