.nav {
  filter: progid:DXImageTransform.Microsoft.Alpha(opacity=20);
  filter: progid:DXImageTransform.Microsoft.Alpha(opacity=0);
  filter: progid:DXImageTransform.Microsoft.gradient(startColorstr="#333333", endColorstr="#000000", GradientType=0);
}
.evalTest1 {
  filter: progid:DXImageTransform.Microsoft.Alpha(opacity=30);
  filter: progid:DXImageTransform.Microsoft.Alpha(opacity=5);
}