FONT SIZE FOR MOBILE

[Abikadabra]

I am the say as Boy - I use OS 16px on main site and OS 18 on mobile variant. Same size when I use Monserrat (or whatever it is called!).

[restless]

I use Arial 13px for mobile sites, 320px page width. I just checked it again on the Google Mobile-Friendly tester and Google says it is fine.