marten-application/src/App.css

body {
    margin: 0;
}

@media (min-width: 600px) {
    .sighting-google-map-container > div {
        width: calc(100% - 240px) !important;
        height: calc(100% - 64px) !important;
    }
}

@media (min-width: 960px) {
    .report-google-map-container > div {
        width: calc(100% - 50% - 120px) !important;
    }
}