#map { 
    height: calc(97vh - 36px);
    width: 98vw;
    margin: 0 auto;
    overflow: hidden;
    border: red;
}

#banner {
    height: 36px;
}

h1 {
    font-family: Arial, Helvetica, sans-serif;
    font-size: 20px;
    text-align: center;
}

.popup {
    line-height: 1;
    margin: 0;
}

.popup h4 {
    margin-bottom: 12px;
}

.leaflet-popup-content p {
    margin: 0.6em 0;
}

.leaflet-popup-content a {
    margin: 1em 0;
}