@keyframes bounce {
    0%, 100% {
        transform: translateY(-10%);
        animation-timing-function: cubic-bezier(0.8,0,1,1);
    }
    50% {
        transform: none;
        animation-timing-function: cubic-bezier(0,0,0.2,1);
    }
}
.mobile-bounce {
    animation: bounce 2s infinite;
}