title: Support for RGBa in IE9+
body: <p>How can I adjust the RGBa to work in IE9+ ? </p>
  
  <p>Here is the code I'm using for IE: </p>
  
  <pre><code>         background:none;
      -ms-filter:progid:DXImageTransform.Microsoft.gradient(startColorstr=#500000ff,endColorstr=#500000ff);
      filter:progid:DXImageTransform.Microsoft.gradient(startColorstr=#500000ff,endColorstr=#500000ff);
      zoom: 1; 
  </code></pre>
  
  <p>PS. In IE8 works just fine</p>