.header .cont .head { background:url(https://sarographic.ir/wp-content/uploads/2017/09/1-1.png); }
@media screen and (max-width:768px){
.header .cont .head { background-image:url(https://sarographic.ir/wp-content/uploads/2021/01/saro-1.png);
background-position: center;
padding-bottom: 23px;
}