CSS to use as a Userstyles file within a custom Fluid app wrapper for Lotus Notes iNotes. Will show overlay please wait after login. http://fluidapp.com see also https://gist.github.com/4531725

fluid-inotes.css

/* Start by setting display:none to make this hidden.
   Then we position it in relation to the viewport window
   with position:fixed. Width, height, top and left speak
   speak for themselves. Background we set to 80% white with
   our animation centered, and no-repeating */
div.loading {
    display:    block;
    position:   fixed;
    z-index:    1000;
    top:        0;
    left:       0;
    height:     100%;
    width:      100%;
    background: rgba( 255, 255, 255, .8 ) 
                url('https://dl.dropbox.com/u/1094926/iNotesLoader.gif') 
                50% 50% 
                no-repeat;
}