/* Bounce To Bottom */ @mixin bounce-to-bottom { @include hacks(); position: relative; @include prefixed(transition-property, color); @include prefixed(transition-duration, $slowDuration); &:before { content: ""; position: absolute; z-index: -1; top: 0; left: 0; right: 0; bottom: 0; background: $activeColor; @include prefixed(transform, scaleY(0)); @include prefixed(transform-origin, 50% 0); @include prefixed(transition-property, transform); @include prefixed(transition-duration, $slowDuration); @include prefixed(transition-timing-function, ease-out); } &:hover, &:focus, &:active { color: white; &:before { @include prefixed(transform, scaleY(1)); @include prefixed(transition-timing-function, cubic-bezier(.52,1.64,.37,.66)); } } }