Kendo UI Window overlay opacity
How can I set overlay opacity with CSS. I tried .k-overlay { opacity:0.9; } but it wont work. Can anyone help me? here I provide a simple demo .k-widget would be a too broad selection. You can set the opacity for that very window once the window will be shown: <script> function onOpen() { setTimeout(function(){ $("#dialog").parent().css("opacity", 0.2); }, 10); } $("#dialog").kendoWindow({ modal: true, open: onOpen }); </script> You could try .k-overlay { opacity:0.9 !important; } instead. That will override the setting which kendo applies directly to the overlay. 来源: https://stackoverflow.com