where can change font size

[bing11]

I want change all font size +1 .

Which way is the best?

tha

[BirdOPrey5]

If you mean the font used in posts -

Admin CP -> Style Manager -> (Your Style) -> Style Variable Editor - > Postbit -> postbit_font

That should change the font size in posts.

If you mean ALL fonts then in the styevar search just search for "font" and you'll need to change all the listed stylevars individually.

[bing11]

thanks