Force chrome to use my preferred font over the author's

I browse the web often, and sometimes I get tired by the type of font.
I'd like to choose my own font for rendering webpages, so that it has precedence over the website font. I'm using chrome and I've accessed:
settings=>Show advanced settings… =>Web Content=>Customize fonts
That works only when no font was specified by the website.
This is not from the perspective of a webdeveloper this is the other way around.