As much as I’m proud of the Typetester’s popularity and the recent revival of typography for the screen, there’s still a significant number of web designers, who are confused about the TT’s base font size. Until I place default sizing control into the interface, here’s a quick clarification. The base size control is now added. The base font size of the TT is 10px, which means 1em is 10px, 1.2em is