.fade-enter-active,
.fade-leave-active {
    transition: all .5s;
    height: 24px;
}

.fade-enter,
.fade-leave-to {
    opacity: 0;
    height: 0;
}

@keyframes fade-in {
    0% {
        opacity: 0;
    }

    100% {
        opacity: 1;
    }
}