.wave-hidden,
.wave-active {
    transform: translate3d(0, 30px, 0);
    opacity: 0;
}

.wave-showing {
    transition: transform .2s cubic-bezier(0.39, 0.575, 0.565, 1), opacity .4s cubic-bezier(0.39, 0.575, 0.565, 1), visibility .4s linear;
}