[csswg-drafts] Pull Request: [animation-triggers-1][editorial] `/` must be written literally

cdoublev has just labeled a pull request from cdoublev for https://github.com/w3c/csswg-drafts as "animation-triggers-1":

== [animation-triggers-1][editorial] `/` must be written literally ==
  > 6. Slashes (/) [...] are written literally. Other delimiters must be written enclosed in single quotes (such as '+').

https://drafts.csswg.org/css-values-4/#component-types

Note that CSS V&U could also say:

  > Delimiters must be written enclosed in single quotes, but slashes and [...] can be written literally.

If not explicitly allowed, it seems legitimate to consider a slash written between quotes as invalid, although it was valid before.

As always with the CSS value definition syntax, the UX via `@property/syntax` and custom function parameters should probably be considered.

See https://github.com/w3c/csswg-drafts/pull/13905


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Received on Saturday, 9 May 2026 09:38:55 UTC