I am displaying a vf page with in a salesforce standard page. That Vf page is showing a small div as a pop-up with a button. Is it possible to grey out the entire window, including the standard page till the user clicks on the button? Using the below css code it is only graying out the embedded VF page and not the complete window.
.popupBackground { opacity:0.8; background-color:#ccc; position:fixed; width:100%; height:100%; top:0px; left:0px; z-index:1000; }
Thanks