Helvetica in action on generalcatalyst.com

Under the hood

.content-1 { font-family: Helvetica, Arial, sans-serif; font-size: 60px; font-style: normal; font-weight: bold; letter-spacing: normal; line-height: 60px; text-transform: none; color: #000000; }
.content-2 { font-family: Helvetica, Arial, sans-serif; font-size: 20px; font-style: normal; font-weight: normal; letter-spacing: normal; line-height: 32px; text-transform: none; color: #000000; }