Helvetica Neue in action on daysapp.co

Under the hood

.header-1 { font-family: "Helvetica Neue", Helvetica, Arial, "Lucida Grande", sans-serif; font-size: 40px; font-style: normal; font-weight: 300; letter-spacing: 0px; line-height: 52px; text-transform: none; color: #343434; }
.content-1 { font-family: "Helvetica Neue", Helvetica, Arial, "Lucida Grande", sans-serif; font-size: 20px; font-style: normal; font-weight: 300; letter-spacing: 0px; line-height: 28px; text-transform: none; color: #888888; }