#embed_map {
   height: 1200px !important; 
    max-width: 960px !important; 
    width: 100% !important; 
    display: block !important; 
    margin: 0 auto !important; 
}
@media screen and (max-width: 768px) {
   #embed_map {
        height: 1200px !important; 
    }
}