@keyframes fadeUpDown {
    0% {
        opacity: 0;
        transform: translateY(50px);
    }
    20% {
        opacity: 1;
        transform: translateY(0);
    }
    80% {
        opacity: 1;
        transform: translateY(0);
    }
    100% {
        opacity: 0;
        transform: translateY(-10px);
    }
}