@if $use-fadeInUp == true { @-webkit-keyframes fadeInUp { 0% { opacity: 0; -webkit-transform: translateY($base-distance * 2); } 100% { opacity: 1; -webkit-transform: translateY(0); } } @-moz-keyframes fadeInUp { 0% { opacity: 0; -moz-transform: translateY($base-distance * 2); } 100% { opacity: 1; -moz-transform: translateY(0); } } @-o-keyframes fadeInUp { 0% { opacity: 0; -o-transform: translateY($base-distance * 2); } 100% { opacity: 1; -o-transform: translateY(0); } } @keyframes fadeInUp { 0% { opacity: 0; transform: translateY($base-distance * 2); } 100% { opacity: 1; transform: translateY(0); } } .fadeInUp { @include animate-prefixer(animation-name, fadeInUp); } }