Proxima Nova in action on ghostbrowser.com

Under the hood

.content-1 { font-family: PN_Semibold; font-size: 80px; font-style: normal; font-weight: bold; letter-spacing: normal; line-height: 60px; text-transform: none; color: #FFFFFF; }
.content-2 { font-family: PN_AltRegular; font-size: 32px; font-style: normal; font-weight: bold; letter-spacing: 1px; line-height: 21px; text-transform: none; color: #FFFFFF; }