Cooper BT font (Serif font) pairing with Platform font (Sans Serif font)

Examples of websites using Cooper BT (Cooper BT is a serif font designed by Oswald Bruce Cooper and released by Bitstream in 1920. The family includes a variety of weights and styles) with Platform (Platform is a sans-serif font designed by Maxime Büchi and released by Commercial Type. The family consists of 20 styles, including regular, italic, light, medium, bold, and black weights, all with matching italics)