Two layout bugs since the player grew a side panel, both reported from prod.
Maximised (F) on a wide window, the video was a thin line across the screen: the side-panel layout
aligns the stage `self-start`, and Chrome applies a flex item's self-alignment to an absolutely
positioned box too, so the fixed stage took its content's height — 0 px. The maximised stage now
stretches between its insets whatever the layout asks of it.
On a short window under 1280 px (a laptop at 100%, a 1080p screen at 175%) only the side strips were
left: the card narrows so the chrome under the video fits, but that chrome grows as the card narrows
(its text wraps), and the loop ran the card down to 2 px. The video now never goes narrower than
36rem to make room; past that the card scrolls.
Measured before/after (localdev, real YouTube iframe): 1097×520 open 0×0 → 610×343; 1920×911 maximised
1920×0 → 1920×911; 1440×760 and 1366×650 maximised fill the window; leaving maximise restores the card.
Held by an e2e test at both sizes (red on the old code: 0 px wide, and 911 ≠ 0), green on Chrome,
WebKit and iPad.
peter
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