title: png files not displaying in IE
body: <p>hello
  can someone tell me why this css does not display png in IE? many thanks</p>
  
  <pre><code>#header
      {
          width:1004px;
          height:309px;
          float: left;
          margin:0px;
          padding:0px;
          background-image::url(../images/header.png);
          background-repeat:no-repeat;
      }
  </code></pre>