body {background: black url(shell-bg.jpg) 0 0 no-repeat fixed;}

div#content {background: transparent url(halfscr-blue.gif) 0 0 repeat scroll;
   background: #468 url(shell-blue.jpg) 0 0 no-repeat fixed;}

div#links a {background: transparent url(halfscr-black.gif) 0 0 repeat scroll;
   background: transparent url(shell-fade.jpg) 0 0 no-repeat fixed;}

div#links a:hover {background: transparent url(halfscr-white.gif) 0 0 repeat scroll;
   background: transparent url(shell-wash.jpg) 0 0 no-repeat fixed;}