A decorative table-of-contents page lays out as nested tables where the inner
table pulls itself up with a negative top margin and the CONTENTS heading uses
line-height:1em. Since #4400 wraps every table in a `.scroll-wrapper`
(overflow:auto), that negative margin bled the heading above the wrapper's clip
box and overflow cut off the top half of its glyphs.
Hoist any negative margins from the wrapped element onto the wrapper and zero
them on the element: the box stays in place, the element sits flush inside it so
overflow cannot clip it, and scrollWidth is no longer inflated by the margin so a
table that actually fits still gets marked fit. Positive and auto margins are
left alone, so an over-wide table still scrolls and a centered table stays
centered.
Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Huang Xin
97868f0486