firefox (tested login with private browser session, version 89.0)
vivaldi (chromium based browser, 3.8.2259.42 (Stable channel) (x86_64))
google chrome (Version 91.0.4472.77 (Official Build) (x86_64))
attached are the screengrabs from the browsers listed above all three showing / displaying the rendering issues.
firefox
google chrome
vivaldi latest
in a completely non secular discussion to this i'd really suggest to abandoning the phpbb forum. the technology is quite antiquated. there are several newer platforms hosted on github that would allow importing existing data stored in the forum (phpBB) to be migrated to a much more managable discussion platform.
the three major browsers i'm using
attached are the screengrabs from the browsers listed above all three showing / displaying the rendering issues.
in a completely non secular discussion to this i'd really suggest to abandoning the phpbb forum. the technology is quite antiquated. there are several newer platforms hosted on github that would allow importing existing data stored in the forum (phpBB) to be migrated to a much more managable discussion platform.