Montserrat with Roboto Mono in action on rescam.org

.header-1 { font-family: Montserrat, sans-serif; font-size: 50px; font-style: normal; font-weight: 100; letter-spacing: -0.3px; line-height: 50px; text-transform: uppercase; color: #333333; }
.content-1 { font-family: "Roboto Mono", monospace; font-size: 20px; font-style: normal; font-weight: 300; letter-spacing: -0.3px; line-height: 28.5714px; text-transform: none; color: #000000; }
Montserrat is available from Font Squirrel, Google Web Fonts and Typekit.

Roboto Mono is available from Google Web Fonts and Typekit.

Try this combination out in Pair and Compare.
Found by @mikesten on 25 Nov 2017.

Liked by:
@mikesten @mishapivo

Montserrat with Roboto Mono