text: var map = L.map('map', {
      minZoom: 0,
      maxZoom: 2,
      center: [0, 0],
      zoom: 0,
      crs: L.CRS.Simple ,
      zoomControl: false 
    });
    
    var w = 2030,
        h = 2238,
        url = 'img/map_edit.png';
    
    var southWest = map.unproject([0, h], map.getMaxZoom()-1);
    var northEast = map.unproject([w, 0], map.getMaxZoom()-1);
    var bounds = new L.LatLngBounds(southWest, northEast);
    L.imageOverlay(url, bounds).addTo(map);
  
    
    map.setMaxBounds(bounds);
  //map.on('click', (e) => { console.log('"lat" : ' + e.latlng.lat + ',\n"lng" : ' + e.latlng.lng ); });
  