USR369's first responsive-width fix (D831) used fixed 640px/820px breakpoints, guessed without knowing his tablet's actual viewport width. A second screenshot confirmed it was still visibly too narrow -- a real screen-size mismatch, not a caching issue this time (the tab bar and other recent changes were correctly visible, confirming the service worker fix is working). Replaced the fixed pixel values with max-width:min(92vw, 1100px) inside the same 700px+ media query -- scales as a percentage of whatever the actual screen width is, capped at 1100px so it doesn't get absurd on a desktop monitor, rather than guessing another specific pixel number that might again be wrong for his specific device.