header { background-color:; } .header .cont .head { background:url(http://javadmoghadam.ir/wp-content/uploads/2020/08/head2.jpg); }
@media screen and (max-width:768px){
.header .cont .head { background-image:url(https://javadmoghadam.ir/wp-content/themes/MoghadamV4/img/head-res.jpg);
}
@media screen and (max-width:768px){
.header .cont .head { background-image:url(http://javadmoghadam.ir/wp-content/uploads/2020/08/head-res2.jpg);
}