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

Under the hood

.header-1 { font-family: Montserrat; font-size: 34px; font-style: normal; font-weight: bold; letter-spacing: 4px; line-height: 47px; text-transform: uppercase; color: #FFFFFF; }
.content-1 { font-family: "Source Sans Pro"; font-size: 28px; font-style: normal; font-weight: 300; letter-spacing: 0px; line-height: 49px; text-transform: none; color: #FFFFFF; }
.content-2 { font-family: "Source Sans Pro"; font-size: 17px; font-style: normal; font-weight: 200; letter-spacing: 0px; line-height: 43px; text-transform: none; color: #FFFFFF; background-color: #000000; }