Caslon font pairing with Roboto

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)

Roboto specimen