/* this is the main UL element */
.dropdown { visibility:hidden; list-style:none; }

/* these are the inner menus */
.dropdown ul {list-style:none; }

/* these are all the LIs in the menu */
.dropdown li {cursor:pointer; }

/* these are anchor in the menu, if you want to style them differently from the rest of you website*/
.dropdown a {}
.dropdown a:hover {}

/* these are the LIs that only belong to submenu*/
.dropdown ul li {}

/* these are the LIs that contains a submenu*/
.dropdown li.submenu { background:url('../pix/expand_down.gif') no-repeat right center; }

/* these are the LIs that contains a submenu and which are in a sub-menu themselve*/
.dropdown ul li.submenu { background:url('../pix/expand_right.gif') no-repeat right center; }