[csswg-drafts] [css-cascade-7] What happens with duplicate @sheet identifiers? (#12001)

• From: Kurt Catti-Schmidt via GitHub <sysbot+gh@w3.org>
• Date: Tue, 25 Mar 2025 00:11:34 +0000
• To: public-css-archive@w3.org
• Message-ID: <issues.opened-2944757752-1742861492-sysbot+gh@w3.org>

KurtCattiSchmidt has just created a new issue for https://github.com/w3c/csswg-drafts:

== [css-cascade-7] What happens with duplicate @sheet identifiers? ==
With the following CSS, what should happen?

```
@sheet sheet1 {
  * { font-family: serif; }
}
@sheet sheet1 {
  * { font-family: sans-serif; }
}
```

I can think of a few options:

1. Last definition wins - this aligns with how CSS generally works and seems straightforward for developers.
2. Rules with the same identifier are merged, like with duplicate `@layer` names. `@layer` is a bit different though, because source order of the *name* determines layer precedence, which isn't the case for `@sheet`.

Please view or discuss this issue at https://github.com/w3c/csswg-drafts/issues/12001 using your GitHub account


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Received on Tuesday, 25 March 2025 00:11:35 UTC