Guillaume

Improve CSS extracts

2

These are requests for a future major release, I guess. The following is a representation of the current shape of the extracted CSS data related to properties/at-rules/descriptors: ``` properties: {...

Invalid `initial` value of some CSS descriptors

2

Some descriptors are defined with an `initial` field value that is not a valid CSS value. If I am not mistaken, for each of them, the value should be internally...

[css-transitions-1] Clarify priority `transition-property` over `transition-timing-function` in `transition`

2

I'm surprised I cannot find a related issue or thread in the archive because `transition` exists since quite a long time, so I hope I have not missed any, or...

[css-nesting-1] Declaration occuring after an invalid nested rule

8

> Declarations occuring after a nested rule are invalid and ignored. https://drafts.csswg.org/css-nesting-1/#mixing Does this mean that a declaration occuring after an invalid nested rule is valid? For example: ```css ul...

This PR applies https://github.com/w3c/csswg-drafts/commit/1af56e0fe072307489875cd6456d3c409953bcb0 to MediaQueries 5. This commit was made 3 years ago, after [initiating](https://github.com/w3c/csswg-drafts/commit/2e34611e661fe3a7cb6ce70491ecf44676c6685e) from MediaQueries 4. Also, the railroad diagram of the updated syntax was not updated...

[css-fonts-4] Missing restrictions of multi-valued feature values

3

In [6.9.1. Basic syntax](https://drafts.csswg.org/css-fonts-4/#font-feature-values-syntax) (of `@font-feature-values`): > Each declaration’s value must match the grammar `+`, or else the declaration is invalid and must be ignored. Then [6.9.2. Multi-valued feature value...

[css-fonts] `CSSFontFaceDescriptors` is missing descriptor attributes

2

[`CSSFontFaceDescriptors`](https://drafts.csswg.org/css-fonts-4/#cssfontfacedescriptors) seems to be missing `font-weight` (not `fontWeight`) and [`font-stretch`/`fontStretch`](https://drafts.csswg.org/css-fonts-4/#font-face-font-stretch) (legacy). CSS Fonts 5 may also missing a partial interface definition with [`font-size`/`fontSize`](https://drafts.csswg.org/css-fonts-5/#descdef-font-face-font-size), [`size-adjust`/`sizeAdjust`](https://drafts.csswg.org/css-fonts-5/#size-adjust-desc), and `*-override`/`*Override`. A simpler alternative is...

[cssom-1] `CSSPageDescriptors` is missing descriptor attributes

1

Only "standalone" descriptors and "property-like" `margin-*` descriptors are defined as [`CSSPageDescriptors`](https://drafts.csswg.org/cssom-1/#csspagedescriptors) attributes. [~~`page-orientation`~~](https://drafts.csswg.org/css-page-3/#descdef-page-page-orientation) (fixed by #10521) and other [page properties](https://drafts.csswg.org/css-page-3/#page-property) are missing. Is there any reason for this? --- [if...

[css-anchor-position-1] Define `CSSPositionTryRule.style` as `CSSPositionTryProperties`

2

It is currently defined as a `CSSStyleDeclaration`, which seems to cause [problems](https://github.com/w3c/csswg-drafts/issues/9042). Now that `CSS*Properties` and `CSS*Descriptors` interfaces inheriting `CSSStyleDeclaration` have landed in CSSOM and other specs, maybe valid properties...

It is all in the title. https://drafts.csswg.org/cssom-1/#cssmarginrule Related: #10105