.header .cont .head { background:url(https://novinatlas.com/wp-content/uploads/2020/05/novinatlas3-3.jpg); }
@media screen and (max-width:768px){
.header .cont .head { background-image:url(https://novinatlas.com/wp-content/themes/amnyar/img/head-res.jpg);
}
@media screen and (max-width:768px){
.header .cont .head { background-image:url(https://novinatlas.com/wp-content/uploads/2020/05/novinatlas193-277-2.jpg);
}