Created attachment 464193 [details] amazon see attached screenshot
Created attachment 464194 [details] Test reduction Looks like incorrect resolved value for percent margin when float is present.
<rdar://problem/103685984>
not a recent regression.
Created attachment 464551 [details] Patch
Created attachment 464557 [details] Patch
Created attachment 464570 [details] Patch
Committed 259125@main (9c6dfde26b8a): <https://commits.webkit.org/259125@main> All reviewed patches have been landed. Closing bug and clearing flags on attachment 464570 [details].