@if $use-slideInDown == true { @-webkit-keyframes slideInDown { 0% { -webkit-transform: translate3d(0, -100%, 0); visibility: visible; } 100% { -webkit-transform: translate3d(0, 0, 0); } } @keyframes slideInDown { 0% { transform: translate3d(0, -100%, 0); visibility: visible; } 100% { transform: translate3d(0, 0, 0); } } .slideInDown { @include animate-prefixer(animation-name, slideInDown); } }