html, body {
  width: 100%;
  height: 90%;
  margin: 0;
  font-family: "Open Sans"; /* Source: https://fonts.google.com/specimen/Open+Sans */
}

#header {
    text-align: center;
    background-color: dodgerblue;
    background-image: url('images/glacier.jpg');
    background-repeat: no-repeat;
    height: 360px;
}
#header h2 {
    font-size: 4em;
    padding: 1em 0;
    margin: 0;
    text-shadow: 2px 2px 4px #000000;
}
#header h3 {
    font-size: 2em;
    margin: 0;
    text-shadow: 2px 2px 4px #000000;
}

#footer {
    width: 100%;
    padding: 1em 0 3em 0;
}
#footer .back {
    float: left;
}
#footer .next {
    float: right;
}

a:link, a:visited {
    color: black;
}
.gray, .gray a:link, .gray a:visited {
    color: gray;
}
.white, .white a:link, .white a:visited {
    color: white;
}


#map1, #map2 {
  width: 49.5%;
  height: 100%;
}

#map1 { float: left; }
#map2 { float: right; }

.basemaps-wrapper {
    position: absolute;
    top: 10px;
    left: 10px;
    z-index: 1000;
}

#map1basemaps { left: 10px; }
#map2basemaps { left: calc(50.5% + 10px); }