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
Proxima Nova
(Proxima Nova is a sans-serif font designed by Mark Simonson Studio. It has a balanced and modern design, with a total of 120 individual styles including 12 weights and matching italics to suit various design needs)
