div.maps {
    margin: -40px 80px 40px;
}

div.maps iframe {
    width: 100%;
    height: 400px;
}

@media all and (max-width: 1024px) {
    div.maps {
        margin: -40px 40px 40px;
    }
}

@media all and (max-width: 767px) {
    div.maps {
        margin: -40px 0 40px;
    }
}