anchor.diff:  
   <style>
     #map_canvas {
  +    width: 400px;
       height: 400px;
  -    width: 600px;
       border: 1px solid black;
     }
   </style>
  
positive.code: 
      var myLatlng = new google.maps.LatLng( <%= @latitude %>, <%= @longitude %> );
      var mapOptions = {
        zoom: 16,
        center: myLatlng,
        mapTypeId: google.maps.MapTypeId.ROADMAP,
      }
  
negative.code: 
  <img src='/assets/photo_metadata_1_400.jpg' alt='photo of snow geese in Skagit Valley, WA, USA'>
  
  <div id="map_canvas"></div>
  
  <br>
  