Black & White Cincinnati Map

HTML

<title>Complex styled maps</title>
    <script src="https://maps.googleapis.com/maps/api/js?v=3.exp&sensor=false"></script>
    <script>

        var map;
        var cincinnati = new google.maps.LatLng(39.10005, -84.51000);

        function initialize() {

            var roadAtlasStyles = [
  {
      "featureType": "road.highway",
      "elementType": "geometry",
      "stylers": [
        { "saturation": -400 },
        { "lightness": -8 },
        { "gamma": 6.18 }
      ]
  }, {
      "featureType": "road.arterial",
      "elementType": "geometry",
      "stylers": [
        { "saturation": -100 },
        { "gamma": 1 },
        { "lightness": -24 }
      ]
  }, {
      "featureType": "poi",
      "elementType": "geometry",
      "stylers": [
        { "saturation": -100 }
      ]
  }, {
      "featureType": "administrative",
      "stylers": [
        { "saturation": -100 }
      ]
  }, {
      "featureType": "transit",
      "stylers": [
        { "saturation": -100 }
      ]
  }, {
      "featureType": "water",
      "elementType": "geometry.fill",
      "stylers": [
        { "saturation": 400 }
      ]
  }, {
      "featureType": "road",
      "stylers": [
        { "saturation": -100 }
      ]
  }, {
      "featureType": "administrative",
      "stylers": [
        { "saturation": -100 }
      ]
  }, {
      "featureType": "landscape",
      "stylers": [
        { "saturation": -100 }
      ]
  }, {
      "featureType": "poi",
      "stylers": [
        { "saturation": -100 }
      ]
  }, {
  }

            ]

            var mapOptions = {
                zoom: 12,
                center: cincinnati,
                mapTypeControlOptions: {
                    mapTypeIds: [google.maps.MapTypeId.ROADMAP, 'usroadatlas']
                }
            };

            map = new google.maps.Map(document.getElementById('map-canvas'),
                mapOptions);

            var styledMapOptions = {
                
            };

            var...

CSS

html, body, #map-canvas {
        height: 100%;
        margin: 0px;
        padding: 0px
      }