Font-size & mobile

[kizu]

Right now the font-size is inherited. However, there is a chance its better to make it 16px, in order for it to never be smaller by default.

Though, there are also other issues with everything for the font to be inherited, like for serif fonts its unlikely we'd want to have inputs with serif fonts as well?

However, probably all of that shouldn't be changed, thus being less opinionated. But if so, the mention of the font-size issue could be added to styling notes.