@media (min-width: 1200px){

.rock-section{
 width: 95%;
}

}

@media (min-width: 992px) and (max-width: 1199px) {



}

@media (min-width: 768px) and (max-width: 991px) {


}

@media (max-width: 767px){

.logo-art img {
    width: 160px;
}
.navbar-fixed-left {
    width: 130px !important;
}
.about {
    width: 85%;
}
}

@media (max-width: 550px){

}