Re: [csswg-drafts] [css-anchor-position][other] Handling popover default styles (#10258)

The CSS Working Group just discussed `[css-anchor-position][other] Handling popover default styles`, and agreed to the following:

* `RESOLVED: auto margins are disabled if position-area is not none`

<details><summary>The full IRC log of that discussion</summary>
&lt;JoshT> fantasai: we had prev discussed having special alignment keyword dialog<br>
&lt;JoshT> ... I think this is not web compat. our tests assumed if you set margins to something, the centring behaviour turns off<br>
&lt;JoshT> ... assumed continuing to centre because of the alignment property was a problem<br>
&lt;JoshT> ... meant setting margins to not auto required us to ???<br>
&lt;JoshT> ... so proposed you can't use auto combinations in some areas<br>
&lt;JoshT> ... unfortunate we can't do this in some cases, but i couldn't come up with other ideas<br>
&lt;JoshT> astearns: this was the first option in your latest comment<br>
&lt;JoshT> fantasai: downside is if someone uses anchor pos and uses the centre position to put it in the box, then the auto margins will behave as we expect, which is unfortunate<br>
&lt;JoshT> ... i would like to figure out a way to make that work<br>
&lt;JoshT> PROPOSED: auto margins are disabled if position-area is not none<br>
&lt;JoshT> RESOLVED: auto margins are disabled if position-area is not none<br>
</details>


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Received on Wednesday, 15 October 2025 15:54:50 UTC