Font column title

Dear developers,

I want to ask you something about fonts.

I want to use Arial as ‘body font’ for normal text, so I’ve selected ‘Arial, Helvetica, sans-serif’ as body font. Unfortunately, the font of the title of columns has also been changed (columns on frontpage). Is it possible to select the ‘standard font’ (Open Sans, sans-serif) as font for column titles on the frontpage and ‘Arial, Helvetica, sans-serif’ for normal text?

Regards.

Susan