filter: progid:DXImageTransform.Microsoft.Alpha(style=0,opacity=90) !important;
opacity: .9 !important;
-moz-opacity: .9 !important;
However, is there any way to modify the background shading differently for different radwindows? I have a scenario on a single page where I want the normal lightly shaded gray background (opacity=50) for one radwindow but I want a complete covering of the parent window (opacity=100) for another. The above override will set the opacity the same for both.
Thanks in advance.