title: SVG logo drop-shadow property not working in IE
body: <p>Drop shadow property for SVG logo not working in IE, but working in chrome.</p>
  
  <p>I have used this:</p>
  
  <pre><code>filter:drop-shadow(0px 0px 2px #a2a2a2);
  -ms-filter:drop-shadow(0px 0px 2px #a2a2a2);
  -webkit-filter:drop-shadow(0px 0px 2px #a2a2a2);
  </code></pre>