hello,
in Visual Studio, i opened a css file of DNN and it says that there is a wrong with "filter" keywork.
.main_dnnmenu_submenu {
background-color: #cad5ea;
z-index: 1000;
cursor: pointer;
cursor: hand;
filter:progid:DXImageTransform.Microsoft.Shadow(color='#696969', Direction=135, Strength=3);
padding: 1px 1px 1px 1px; /*explicitly set padding for sub-menus */
}
if dont know much about css but if there's really an error, it would be better if it is corrected.