Re: [csswg-drafts] [css-anchor-position-1] Overflow behavior when no containing block is defined (#12999)

@bfgeek did something change in the Implementation?

Consider this demo: https://codepen.io/t_afif/pen/ZYQxKjy

When you drag the anchor outside on the left or right, It should trigger the "flip-start" position but it's not working. I don't know exactly on which version but around November/December 2025 it was working fine.

If I am reading the Spec correctly, the flip should occur unless I missed something.

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Received on Saturday, 21 February 2026 09:55:05 UTC