[csswg-drafts] [css-grid-3][masonry] Static positions of out-of-flow items in fill-reverse (#13931)

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

== [css-grid-3][masonry] Static positions of out-of-flow items in fill-reverse ==
In the case we are using fill-reverse on a grid-lanes container (ie either `grid-lanes-direction: row fill-reverse` or `grid-lanes-direction: column fill-reverse`), do we expect the static positions of the out-of-flow items to be reversed along the stacking axis as well?

For example, for `column fill-reverse`, should the static position of the OOF item be at the end of the container, where the in-flow items are starting:
<img width="500" height="321" alt="Image" src="https://github.com/user-attachments/assets/732364b2-5d20-4d4c-af29-cc3e0c155303" />

or should the static position of the OOF item be at the start of the container:

<img width="500" height="259" alt="Image" src="https://github.com/user-attachments/assets/b6af9d97-c0ad-4a9d-91e5-32973da867ad" />

I think it makes the most sense to have the static position of the out-of-flow items calibrate to wherever the rest of the in-flow items are starting, since the static position of an out-of-flow item represents where the item would be placed if it were in-flow.


Please view or discuss this issue at https://github.com/w3c/csswg-drafts/issues/13931 using your GitHub account


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Received on Friday, 15 May 2026 20:37:59 UTC