Caslon font (Serif font) pairing with Europa font (Sans Serif font)

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 Europa (Europa is a sans-serif font designed by Fabian Leuenberger and released by EuropaType in 2011. The font family consists of 36 individual styles, including regular, italic, thin, bold, and condensed variations)