Re: [csswg-drafts] [css-grid-3] Make align-self/justify-self align including adjacent extra space (#10275)

The CSS Working Group just discussed `[css-grid-3] Make align-self/justify-self align including adjacent extra space`, and agreed to the following:

* `RESOLVED: baseline alignment values are treated as their fallback value`
* `RESOLVED: No, alignment of one item doesn't depend on alignment of other items.`

<details><summary>The full IRC log of that discussion</summary>
&lt;sgill> alisonmaher: recently agreed to add align-self justify-self in masonry axis but still details remaining<br>
&lt;sgill> which alignment keywords apply? should baseline alignment be an option? assume no<br>
&lt;fantasai> PROPOSED: baseline alignment values are treated as their fallback value<br>
&lt;fantasai> RESOLVED: baseline alignment values are treated as their fallback value<br>
&lt;fantasai> https://github.com/w3c/csswg-drafts/issues/10275#issuecomment-3760830496<br>
&lt;fantasai> Lovely diagram ^<br>
&lt;sgill> alisonmaher: second piece is related to last comment in issue<br>
&lt;sgill> if there is a spanner that is an alignment subject and has an item above it that is an alignment subject<br>
&lt;dholbert> q+<br>
&lt;sgill> is there extra space created for the first one<br>
&lt;astearns> ack dholbert<br>
&lt;sgill> dholbert: for simplicity i want to say no<br>
&lt;sgill> but would create pretty broken result if everything was centered aligned and some things didn't look that way<br>
&lt;fantasai> PROPOSED: Extra space provided to an item's alignment container is exclusive to it.<br>
&lt;sgill> do we expect this to be a common use case<br>
&lt;sgill> astearns: in the diagram, if the blue item has center alignment and is the only thing w/ it, seems like the intent is for it to be center aligned relative to other items<br>
&lt;sgill> fantasai: don't want to make alignment of one object depend on alignment of another<br>
&lt;sgill> TabAtkins: all self alignment values apply in a way that do not depend on other elements<br>
&lt;fantasai> RESOLVED: No, alignment of one item doesn't depend on alignment of other items.<br>
</details>


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Received on Thursday, 29 January 2026 22:24:00 UTC