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