Re: [csswg-drafts] [css-ruby] glyph placement inside bopomofo ruby (#13533)

I'd rather specify a simple-even if-not-necessarily-useful behavior than undefined behavior. Otherwise we run the risk that some popular web page(s) uses it wrong, depends on whatever currently popular browser happens to implement (which may or may not be simple, since it's undefined), forcing everyone else to reverse engineer that behavior, and us having to spec it later.

If it's handled at the font level, that kind of falls out of how that gets implemented.

If it's handled in CSS, maybe the simple-even-if-not-necessarily-useful behavior could simply be that if you have anything more than 3 bopomofo characters and a tone mark, the special layout mode is not invoked, and you get normal vertical layout within the ruby annotation (which is still placed inter-character in horizontal text, since you did ask for that).

> But we also, i believe, need to do something about that initial paragraph that seems to equate inter-character with over in vertical.

+1

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Received on Monday, 23 February 2026 12:39:36 UTC