I'm sure you're right - I am only ever a front end CSS dev in an emergency, and then only for desktop. That said, when I see a relative discrepancy between size

I'm sure you're right - I am only ever a front end CSS dev in an emergency, and then only for desktop. That said, when I see a relative discrepancy between sizes on different media, px vs pt is where I'd look. That is, two things that might e.g. look the same size on a desktop browser but look different sizes on mobile.