title: How do I decrease the size of Icon in openlayers 3, i am using bing maps
body: <p>This is my code:</p>
  
  <pre><code>var iconFeature = new ol.Feature({
     geometry: new ol.geom.Point(ol.proj.transform([-95.3698,29.7604], 'EPSG:4326' , 'EPSG:3857')),
     name: 'Null Island',
  });
  
  var iconStyle = new ol.style.Style({
    image: new ol.style.Icon({
      opacity: 0.75,
      src: 'flag.png',
      height:10,
      width:10,
    })
  });
  iconFeature.setStyle(iconStyle);
  </code></pre>
  
  <p>I have tried using anchor also, but I could not decrease the size, please help</p>