[csswg-drafts] [css-anchor-position-1] Minor correct to the grammar for `position-try-fallbacks` (#12838)

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

== [css-anchor-position-1] Minor correct to the grammar for `position-try-fallbacks` ==
I think the grammar for [`position-try-fallbacks`](https://drafts.csswg.org/css-anchor-position-1/#propdef-position-try-fallbacks) probably wants to use `<position-area>` not `<'position-area'>`, as the latter allows `none`.

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More details:

The grammar for [`position-try-fallbacks`](https://drafts.csswg.org/css-anchor-position-1/#propdef-position-try-fallbacks) is currently:

```
<'position-try-fallbacks'> = none | [ [<dashed-ident> || <try-tactic>] | <'position-area'> ]#
```

And the grammar for [`<'position-area'>`](https://drafts.csswg.org/css-anchor-position-1/#propdef-position-area) is:

```
<'position-area'> = none | <position-area>
```

Combined, this means that `position-try-fallbacks` allows something like `flip-block, none, none, none`.



Please view or discuss this issue at https://github.com/w3c/csswg-drafts/issues/12838 using your GitHub account


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Received on Monday, 22 September 2025 00:07:22 UTC