Examples of websites using
Caslon
(Caslon is a serif font designed by Dave Farey and William Caslon and released by ITC in 1725. The font family consists of multiple styles in various weights and matching italics)
with
Roboto
(Roboto is a sans-serif font designed by Christian Robertson and published through Google. The font family consists of 12 styles, including regular, italic, bold, and bold italic variations)