[fxtf-drafts] [css-masking-1] "Computed value" definition of `mask-*` longhand properties does not take layers into account (#604)

InvalidUsernameException has just created a new issue for https://github.com/w3c/fxtf-drafts:

== [css-masking-1] "Computed value" definition of `mask-*` longhand properties does not take layers into account ==
The _Computed value_ field for all the `mask-*` longhand property-definitions seems to assume that only a single mask layer is valid. Looking at the git blame, some of the _Computed value_ fields were last edited in bed6e3ff590ea710603c1eaac5e96ca0bfd67d4a or even earlier, while mask layers were added back in 98165cc0cef228cbe1964d041b255258849ad49a (almost half a year later).

I think these fields should be described in a similar fashion to the `background-*` properties from `css-backgrounds`, e.g.

```diff
-Computed value: as specified
+Computed value: list, each item a keyword as specified 
```



Please view or discuss this issue at https://github.com/w3c/fxtf-drafts/issues/604 using your GitHub account


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Received on Sunday, 3 August 2025 19:03:53 UTC