Re: [csswg-drafts] [css-contain] Allow container query style features to evaluate in a boolean? (#8127)

> > The term supported CSS property refers to a CSS property that the user agent implements, including any vendor-prefixed properties, **but excluding custom properties**.

Got it.

How about: [`supported CSS property`](https://drafts.csswg.org/cssom-1/#supported-css-property) or a [`<custom-property-name>`](https://drafts.csswg.org/css-variables/#typedef-custom-property-name) ?
 
> https://drafts.csswg.org/cssom-1/#supported-css-property
> 
> I borrowed _if it accepts that property in a style rule_ from the prose in CSS Conditionals 3 for `<supports-decl>`, which I would be fine if its result would be defined as true if the declaration is successfully parsed against `<declaration>`, defined as matching a declaration whose value is valid according to the grammar of the property that corresponds to its name.

I'm not able to understand what you're trying to say here. Where did you borrow that?


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Received on Wednesday, 26 April 2023 12:47:48 UTC