@media only screen and (min-device-width : 668px) and (max-device-width : 1366px){
.main_menu ul li a {
    padding: 8px 12px;
    }
.main_menu.menupd ul li a {
    padding: 6px 11px;
}

}


@media only screen and (min-device-width : 320px) and (max-device-width : 480px){
.desk {
    display: none;
}
.mob {
    display: block;
}
}