Source Sans Pro in action on penlink.com

Under the hood

.header-1 { font-family: "Source Sans Pro", sans-serif; font-size: 28px; font-style: normal; font-weight: bold; letter-spacing: 3px; line-height: 49px; text-transform: uppercase; color: #002A48; }
.header-2 { font-family: "Source Sans Pro", sans-serif; font-size: 23px; font-style: normal; font-weight: bold; letter-spacing: 2px; line-height: 40px; text-transform: uppercase; color: #002A48; }
.content-1 { font-family: "Source Sans Pro", sans-serif; font-size: 18px; font-style: normal; font-weight: normal; letter-spacing: normal; line-height: 32px; text-transform: none; color: #6E6E6E; }