Re: [csswg-drafts] [css-gaps-1] Computed value of column-rule-width with none|hidden style and lists of values (#11494)

@emilio 
  
> * We probably need the border-width resolved value to account for border-style. Do you agree with that intuition?

Yes I agree; part of the resolution was that we'd leave resolved value of border-width unchanged.

> * It seems Chromium hasn't quite implemented this right? At least, with this resolution, tests like [`border-width-011.xht`](https://wpt.fyi/results/css/CSS2/borders/border-width-011.xht) should fail. What exactly did you implement?

Tagging @oSamDavis since he did the implementation to correct me if I'm wrong, but as I understand:
* Behavioral changes are behind the Experimental Web Platform Features flag.
* Computed values of border-width, outline-width, and column-rule-width are changed per the resolution.
* Resolved values of outline-width and column-rule-width (but not border-width) are changed per the resolution.
* We have use counters in place to measure potential breakage, though I don't know if they've been in long enough to give us useful data yet.

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Received on Wednesday, 5 November 2025 22:28:04 UTC