Private Use areas - Vertical Text

[via Unicode]

Dear Andrew,

I was using a change horizontal to vertical text feature in office, the 
PUA characters being from plane 15.

Regards
John

On 2018-08-29 16:32, Andrew West via Unicode wrote:
> On Wed, 29 Aug 2018 at 05:07, via Unicode <unicode at unicode.org> wrote:
>> 
>> Yes, as Richard says when CJK Zhuang text is displayed vertically 
>> whilst
>> the Zhuang characters in Unicode remain upright, but those with PUA
>> codepoints are rotated 90°.
> 
> John, you did not explain by what mechanism you were trying to display
> vertical PUA Zhuang text.
> 
> I can display vertically-oriented PUA-encoded CJKVZ ideographs in
> vertical layout in web pages using CSS, as demonstrated in this test
> page:
> 
> http://www.babelstone.co.uk/Fonts/PUA_Vertical_Test.html
> 
> The PUA characters display with correct orientation under Windows 10
> on the Edge, Chrome and Firefox browsers. The test page only fails
> under IE, but we are not meant to use IE anymore anyway.
> 
> Andrew