IE6下png图片透明设置

    <!--IE6下png图片透明设置-->
    <style type="text/css">
        .td_BG_1
        {
          filter:progid:DXImageTransform.Microsoft.AlphaImageLoader(src="Css/Login/Image/CompanyTitle.png",sizingMethod='crop');
          width :1px;
          background :none;
        }
    </style>