mobile web browsers, most websites would serve either a separate style sheet that gave a simplified layout
A simpler layout and usually a more lightweight page in general because mobile data eas slow and expensive back then.
If someone wanted people to actually use their site on the go, they had to make it load quickly and not cost $5 worth of data doing it.
paraphrand@lemmy.world 4 days ago
Yeah, this is a remnant of Wikipedia supporting mobile devices really early.