MDN URL
https://developer.mozilla.org/en-US/docs/Web/CSS/Reference/Properties/ruby-position
What specific section or headline is this issue about?
ruby-position CSS property
What information was incorrect, unhelpful, or incomplete?
ruby-position:inter-character is specifically intended to support bopomofo (zhuyin fuhao) ruby. Although Safari shoves the annotation into a vertical line to the right of the base character, it handles tone marks incorrectly, and so fails to be useful. See https://www.w3.org/International/articles/ruby/styling.en#bopomofo_position. It is also incorrect to say that "When specified, it behaves as over in vertical writing modes" because it has to position tone marks correctly there too. The description on the page needs to be rewritten and in Browser Compat section Safari should not be listed as 'full support'.
What did you expect to see?
See above.
Do you have any supporting links, references, or citations?
https://www.w3.org/International/articles/ruby/styling.en#bopomofo_position
https://drafts.csswg.org/css-ruby/#valdef-ruby-position-inter-character
Do you have anything more you want to share?
The description in the CSS Ruby spec needs some work. See w3c/csswg-drafts#13533
MDN metadata
Page report details
MDN URL
https://developer.mozilla.org/en-US/docs/Web/CSS/Reference/Properties/ruby-position
What specific section or headline is this issue about?
ruby-position CSS property
What information was incorrect, unhelpful, or incomplete?
ruby-position:inter-character is specifically intended to support bopomofo (zhuyin fuhao) ruby. Although Safari shoves the annotation into a vertical line to the right of the base character, it handles tone marks incorrectly, and so fails to be useful. See https://www.w3.org/International/articles/ruby/styling.en#bopomofo_position. It is also incorrect to say that "When specified, it behaves as over in vertical writing modes" because it has to position tone marks correctly there too. The description on the page needs to be rewritten and in Browser Compat section Safari should not be listed as 'full support'.
What did you expect to see?
See above.
Do you have any supporting links, references, or citations?
https://www.w3.org/International/articles/ruby/styling.en#bopomofo_position
https://drafts.csswg.org/css-ruby/#valdef-ruby-position-inter-character
Do you have anything more you want to share?
The description in the CSS Ruby spec needs some work. See w3c/csswg-drafts#13533
MDN metadata
Page report details
en-us/web/css/reference/properties/ruby-position