Re: [csswg-drafts] [css-value] Clarification on the serialization of the shorthand associated with coordinated value lists (#13500)

Ok, thinking through this for some additional cases:

```
scroll-timeline-name: --a, --b, --c;
```

Here, the computed value of `scroll-timeline-name` is, `--a, --b, --c`, and the computed value of `scroll-timeline-axis` is `block` (its initial value), so the computed value of `scroll-timeline` would have to be the empty string.

I think that means the rule is that for coordinated value lists:

"If you specify more than one value for **any** of the longhands, but **not all** of the longhands, the shorthand will serialize as the empty string."

Does that sound right to you?

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Received on Tuesday, 17 February 2026 02:28:53 UTC