Chrome adds a stylesheet of its own to extension pages that sets the font
on body. Tailwind 4 puts its classes in a cascade layer, and a rule outside
any layer wins over them, so font-mono lost and Chrome drew the popup in
the system font. body now carries font-mono!, which marks the class
important. Both end-to-end suites check the popup's font.
The same stylesheet also makes Chrome draw the popup's text at 12px rather
than text-sm's 14px; that is unchanged here and filed as issue 456.
Model: opus-5-5
sneak