#dropdown_menu, #dropdown_menu ul { /* all lists */
  padding: 0;
  margin: 0;
  list-style: none;
  /*line-height: 1;*/
}

#dropdown_menu a {
  /*display: block;
  width: 10em;*/
}

#dropdown_menu li { /* all list items */
	float: left;
	/*width: 10em;*/ /* width needed or else Opera goes nuts */
}

#dropdown_menu li ul { /* second-level lists */
	position: absolute;
	width: 10em;
	margin-left: -1000em; /* using left instead of display to hide menus because display: none isn't read by screen readers */
}

#dropdown_menu li ul ul { /* third-and-above-level lists */
	margin: -1em 0 0 -1000em;
}

#dropdown_menu li:hover ul ul, #dropdown_menu li.sfhover ul ul {
	margin-left: -1000em;
}

#dropdown_menu li:hover ul, #dropdown_menu li.sfhover ul { /* lists nested under hovered list items */
	margin-left: 0;
}
#dropdown_menu li li:hover ul, #dropdown_menu li li.sfhover ul {
	margin-left: 250px;
}


/* extra positioning rules for limited noscript keyboard accessibility */
#dropdown_menu li a:focus + ul { margin-left: 0; }
#dropdown_menu li li a:focus + ul { margin-left: 1010em; }
#dropdown_menu li li a:focus { margin-left:1000em; width:10em; background: orange; }
#dropdown_menu li li li a:focus {margin-left: 2010em; width: 10em; background: orange; }
#dropdown_menu li:hover a:focus, #dropdown_menu li.sfhover a.sffocus { margin-left: 0; }
#dropdown_menu li li:hover a:focus + ul, #dropdown_menu li li.sfhover a.sffocus + ul { margin-left: 250px; }