Helvetica with Helvetica Neue in action on polsolsona.com

Under the hood

.content-1 { font-family: Helvetica, Arial, sans-serif; font-size: 145px; font-style: normal; font-weight: bold; letter-spacing: normal; line-height: 18px; text-transform: none; color: #FFFFFF; }
.content-2 { font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; font-size: 13px; font-style: normal; font-weight: normal; letter-spacing: normal; line-height: 20px; text-transform: none; color: #FFFFFF; }