@media (max-width: 1200px) {
    img#img-map {  max-width: 960px; }
}

@media (max-width: 1024px) {
    div#main {	    margin-left: 10%;
                    margin-right: 10%;
                    margin-top: 5%; }
    img#img-map {  max-width: 720px; }
}

@media (max-width: 768px) {
    img#img-map {  max-width: 600px; }
}

@media (max-width: 480px) {
    img#img-map {  max-width: 300px; }
}