body { margin: 0; padding: 0; }
/* #map { position: absolute; top: 0; bottom: 0; width: 100%; } */
#map {
    position: absolute;
    bottom: 0;
    width: 100%;
    height: calc(100%);
}

.navigation {
    width: 100%;
    background-color: seagreen;
    display: flex;
    border-bottom: 1px solid #fff;
}
.navigation a {
    color: white;
    display: block;
    padding: 15px;
    text-decoration: none;;
    background-color: grey;
    transition: 0.2s all;
}
.navigation a:hover,
.navigation a.active {
    background-color: seagreen;
    transition: 0.2s all;
}

.mapbox {
    position: relative;
    min-height: 800px;
}

.masthead,
.map-controls {
    background-color: grey;
    padding: 10px 10px;
}

.map-controls {
    margin-bottom: 0;
}

.masthead {
}

.masthead h1 {
    margin: 0;
}