var map = new google.maps.Map(document.getElementById('map'), {
      center: {lat: 45.4655171, lng: 12.7700794},
      zoom: 3,
      minZoom: 3,
      zoomControl: true,
      restriction: {
        latLngBounds: {
          east: 179.9999,
          north: 85,
          south: -85,
          west: -179.9999
        },
        strictBounds: false
      },....