Re: [csswg-drafts] [css-borders-4] Specify how `corner-shape` affects `outline` (#12194)

The CSS Working Group just discussed ``[css-borders-4] Specify how `corner-shape` affects `outline` ``, and agreed to the following:

* `RESOLVED: Add corner-shape to the border-radius clause in outline definition`

<details><summary>The full IRC log of that discussion</summary>
&lt;emilio> noamr: there was a question about how does corner-shape matches outline. Current spec is not interoperable, rather handwavy<br>
&lt;emilio> ... spec says it generally should follow the border<br>
&lt;emilio> ... should I continue that path for border-shape?<br>
&lt;florian> q+<br>
&lt;emilio> ... following the border<br>
&lt;emilio> Q+<br>
&lt;emilio> ... should we try to make that interoperable?<br>
&lt;astearns> ack florian<br>
&lt;emilio> florian: I think short term is to extend the current spec<br>
&lt;emilio> ... going beyond it is a big project, there are a lot of other issues with outline<br>
&lt;emilio> ... defining would be a good project but a big project<br>
&lt;astearns> ack emilio<br>
&lt;fantasai> [missed]<br>
&lt;fantasai> emilio: we have the magic thing, which is outline-style: auto<br>
&lt;fantasai> emilio: for easy cases we can more easily define<br>
&lt;fantasai> emilio: handwaving fragmentation cases can be fine<br>
&lt;fantasai> emilio: agree we shouldn't need to fix everything<br>
&lt;fantasai> emilio: but let's get interop on some cases<br>
&lt;fantasai> florian: two resolutions<br>
&lt;fantasai> florian: 1. Follow corner-shape<br>
&lt;fantasai> florian: 2. WG will attempt to outline in more detail<br>
&lt;fantasai> florian: we don't have a definition, but we can try<br>
&lt;fantasai> emilio: the non-auto cases seem pretty definable<br>
&lt;fantasai> florian: definable, but is not currently defined<br>
&lt;fantasai> florian: I used to have an art gallery of interesting outline rendering, so there is a lot to define!<br>
&lt;fantasai> astearns: out of time, but I think it sounded like we have consensus to at least add corner-shape to the bit that defines how we deal with border-radius<br>
&lt;fantasai> astearns: add it to that vagueness, and perhaps a note to better specify this later<br>
&lt;fantasai> noamr: sgtm<br>
&lt;fantasai> florian: I agree with the direction, probably issue rather than note though<br>
&lt;fantasai> noamr: open a separate issue<br>
&lt;fantasai> PROPOSED: Add corner-shape to the border-radius clause in outline<br>
&lt;fantasai> RESOLVED: Add corner-shape to the border-radius clause in outline definition<br>
</details>


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Received on Wednesday, 28 May 2025 17:02:34 UTC