const mapOptions = {
    center: { lat: -33.8688, lng: 151.2195 },
    zoom: 12,
    styles: [
          {
              featureType: 'water',
              elementType: 'geometry',
              stylers: [
                  {
                      color: '#e9e9e9'
                  },
                  {
                      lightness: 17
                  }
              ]
          },
          {
              featureType: 'landscape',
              elementType: 'geometry',
              stylers: [
                  {
                      color: '#f5f5f5'
                  },
                  {
                      lightness: 20
                  }
              ]
          }
 ]
};

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