#boton-whatsapp {
    font-size: 65px;
    color: #25D366;
    right: 22px;
    bottom: 10px;
    display: block;
    position: fixed;
    text-decoration: none;
    z-index: 999999;
    animation: icon-animada 1s ease-in-out infinite;
}

#boton-whatsapp:hover,
#boton-whatsapp:focus{
    animation: paused;
}
@keyframes icon-animada{
    from{
        transform: translateY(0);
    }
    50%{
        transform: translateY(10px);
    }
    to{
        transform: translateY(0);
    }
}