Examples of websites using
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)
with
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)
