.free_button{
    position: fixed;
    bottom: 80px;
    right: 90px;
    width: 400px;
    animation: fuwafuwa 3s ease-in-out infinite alternate;
    transition: 1.5s ease-in-out;
    z-index: 10;
}

.free_button img{
    width: 100%;
}

@keyframes fuwafuwa {
    0% {
        transform:translate(0, 0);
    }
    50% {
        transform:translate(0, -7px);
    }
    100% {
        transform:translate(0, 0);
    }
}

@media screen and (max-width: 768px){
    .analy-fv{
        padding-bottom: 200px;
    }

    .free_button{
        position: absolute;
        bottom: 10px;
        right: 15%;
        width: 70%;
    }
}