Lato in action on git-tower.com

Under the hood

.header-1 { font-family: Lato, 'Helvetica Neue', Helvetica, Arial, sans-serif; font-size: 64px; font-style: normal; font-weight: 100; letter-spacing: normal; line-height: 80px; text-transform: uppercase; color: #000000; }
.header-2 { font-family: Lato, 'Helvetica Neue', Helvetica, Arial, sans-serif; font-size: 28px; font-style: normal; font-weight: 200; letter-spacing: normal; line-height: 35px; text-transform: none; color: #999999; }
.content-1 { font-family: Lato, 'Helvetica Neue', Helvetica, Arial, sans-serif; font-size: 24px; font-style: normal; font-weight: 300; letter-spacing: normal; line-height: 36px; text-transform: none; color: #333333; }
.content-2 { font-family: Lato, 'Helvetica Neue', Helvetica, Arial, sans-serif; font-size: 24px; font-style: normal; font-weight: 300; letter-spacing: normal; line-height: 36px; text-transform: none; color: #333333; }