@keyframes bounce {

    0%,
    20%,
    50%,
    80%,
    100% {
        transform: translateY(0);
    }

    40% {
        transform: translateY(-15px);
    }

    60% {
        transform: translateY(-8px);
    }
}

.fax-bounce {
    animation: bounce 1s ease-in-out 2s 10 normal;
}