Open Sans font pairing with Aperçu

Examples of websites using Open Sans (Open Sans is a sans-serif font designed by Steve Matteson. It offers a wide range of styles, including regular, italic, bold, bold italic, and light) with Aperçu (Aperçu is a sans-serif font designed by Colophon Foundry and released by Commercial Type. The family is available in multiple weights and styles, including regular, condensed, and extended widths, with matching italics)