.navbar-brand {
  background-image: none;
  filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(
    src='../img/logo2@2x.png', sizingMethod=scale);
  -ms-filter: "progid:DXImageTransform.Microsoft.AlphaImageLoader(src='../img/logo2@2x.png', sizingMethod='scale')";
}