#windmill {
    display: block;
    margin: 0 auto;
    max-width: 700px;
}

.cls-3{
    transform: translateX(150px);
    animation: scroll 20s infinite linear;
}


@keyframes scroll {
    from {
        transform: translateX(-50px);
    }
    to {
        transform: translateX(150px);
    }
}