Montserrat with Source Sans Pro in action on burst.carrd.co

.header-1 { font-family: Montserrat; font-size: 34.6667px; font-style: normal; font-weight: bold; letter-spacing: 4.76667px; line-height: 47.6667px; text-transform: uppercase; color: #FFFFFF; }
.content-1 { font-family: "Source Sans Pro"; font-size: 28.1667px; font-style: normal; font-weight: 300; letter-spacing: 0.433333px; line-height: 49.2917px; text-transform: none; color: #FFFFFF; }
.content-2 { font-family: "Source Sans Pro"; font-size: 17.3333px; font-style: normal; font-weight: 200; letter-spacing: 0.433333px; line-height: 43.3333px; text-transform: none; color: #FFFFFF; background-color: #000000; }
Montserrat is available from Font Squirrel, Google Web Fonts and Typekit.

Source Sans Pro is available from Font Squirrel, Google Web Fonts and Typekit.

Try this combination out in Pair and Compare.
Found by @mikesten on 21 Sep 2017.

Liked by:
@mikesten @jfcomartinez18

Montserrat with Source Sans Pro