section#factory .side-img .img{
    margin-left: 22px;
}

@media (max-width: 600px){
    #content .r .side-img .img {
        margin-right: 20%;
    }
}

@media (max-width: 500px){
    #content .r .side-img .img {
        margin-right: 15%;
        margin-left: 0;
    }
}

@media (max-width: 400px){
    #content .r .side-img .img {
        margin-right: 10%;
    }
}