@mixin transition-duration($dur: 0.3s) {
-webkit-transition-duration: $dur; -moz-transition-duration: $dur; -o-transition-duration: $dur; transition-duration: $dur;
}
@mixin transform($translate: translate3d(0px, 0px, 0px), $scale: scale(1)) {
-webkit-transform: $translate $scale; -moz-transform: $translate $scale; -o-transform: $translate $scale; transform: $translate $scale;
}