Examples of websites using
Lato
(Lato is a sans-serif font designed by Łukasz Dziedzic and released by tyPoland in 2010. The font family consists of two styles, regular and bold, with each style available in a wide range of weights and matching italics)
with
Didot
(Didot is a serif font designed by Hoefler&Co. It is available in a variety of weights and styles)