Re: [csswg-drafts] [css-anchor-position-1] Allow more properties in position fallbacks (#9195)

The CSS Working Group just discussed `[css-anchor-position-1] Allow more properties in position fallbacks`, and agreed to the following:

* `RESOLVED: add border, padding, and margin properties to position fallback rules`

<details><summary>The full IRC log of that discussion</summary>
&lt;dbaron> astearns: see if we can resolve this in 5 minutes?<br>
&lt;dbaron> TabAtkins: currently position fallback has a limited set of things you can put in it.  There are use cases for more properties.<br>
&lt;dbaron> ... originally limited for simplicity of implementation.  Original goal of things that could be done late in layout cycle, without changing overflow.<br>
&lt;dbaron> ... border/padding/margin don't cause new problems that changing positioning properties do already.  Also seem necessary for many things.<br>
&lt;dbaron> ... different margins or different borders depending on alignment.<br>
&lt;dbaron> ... So we're suggesting to add the box properties (border, padding, and margin) into list of allowed properties.<br>
&lt;dbaron> dbaron: all border properties, including stuff like border-image?<br>
&lt;dbaron> TabAtkins: yeah<br>
&lt;emilio> q+<br>
&lt;dbaron> astearns: any objections to adding border padding and margin properties to position fallback rules?<br>
&lt;dbaron> emilio: not an objection, but doesn't that mean that you can trigger image loads as a result of this?<br>
&lt;dbaron> emilio: either need to load the border-image eagerly or it flickers<br>
&lt;dbaron> TabAtkins: known issue with background image that only triggers on :hover<br>
&lt;dbaron> TabAtkins: we should probably do something about it, but doesn't need to be addressed now<br>
&lt;emilio> ack emilio<br>
&lt;dbaron> emilio: fair enough<br>
&lt;dbaron> astearns: any objections to add these properties?<br>
&lt;dbaron> RESOLVED: add border, padding, and margin properties to position fallback rules<br>
</details>


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Received on Wednesday, 23 August 2023 15:09:40 UTC