To anyone who needs to hear it:

If you set your font-sizes in `px` you fail WCAG 1.4.4.

Not all users operate "full page zoom". If you can't resize just the text, you have a problem.

@heydon Is this an absolute thing? When using a fluid type scale, is it still best to use rems? I've had users complaining that "the text is too large" because Chrome on Windows has default font size of 20px, and they are not aware that they can change it
@simpliston It’s not about the default size (perceivably too small or large) but how much the user can enlarge the text. Didn't know that about Chrome on Windows!
@heydon Hmm, guess I'll try it again. The user feedback scared me, but it might have been because I also used rems for padding, margin and other spacing, which would make the entire UI large for users with large default font sizes
@simpliston I guess, yeah. But so long as it's also responsive and nothing gets obscured I think you can just put it down to a "taste" thing, for the most part.