Выплывающее меню - Вопросы по CSS

/*-------------------------------------mainmenu---*/

/*-----------------content----*/
.module_menu div{color:#fff; font-size:12px;}
.module_menu ul { list-style:none; margin:0px 0px 0px 0px;}
.module_menu li	{ line-height:14px !important; background:url(../images/main_menu_line.gif) bottom left repeat-x; padding:6px 0 9px 0;}
.module_menu li	ul {padding:8px 0px 2px 18px;}
.module_menu li	ul li{ background:none;  padding:2px 0 5px 0;}
.module_menu li a {
	 background:url(../images/list_marker.gif) 5px 5px no-repeat;
     padding:0px 0px 0 18px;
	color:#13644D  !important;
	display:block;
	font:normal 12px/17px Tahoma;
	text-decoration:none;
	 line-height:14px  !important;
}
.module_menu li a span {}
.module_menu li a:hover {
	color:#D5470C  !important;
	text-decoration:none;
	padding:0 0px 0 0;
	 line-height:14px;
	 padding:0px 0px 0 18px;
}
.module_menu li a:hover span {color:#D5470C !important; }
.module_menu li.active a {color:#D5470C  !important; padding:0px 0px 0 18px; line-height:14px; }

/*-------------------------------------topmenu---*/

.row-top-menu ul.menu-nav {
padding:0 0 0 0 !important;
margin:0 0 0 0 !important;

}
.row-top-menu ul.menu-nav li	{
	display:block; 
	padding:0 0 0 0;
	float:left;
	margin:0 0 0 0;
	background:url(../images/top_menu_separator.png) right 0 no-repeat;
	_background:url(../images/top_menu_separator.gif) right 0 no-repeat;
	padding:0 2px 0 0 !important;
	
}
.row-top-menu ul.menu-nav li a  {
	border:none;
	text-decoration:none !important;
	float:left;
	padding:0 0 0 5px;
	margin:0 0 0 0;
	background:url(../images/top_meun_marker.png) right 10px no-repeat;
	_background:url(../images/top_meun_marker.gif) right 10px no-repeat;
	
	
}
.row-top-menu ul.menu-nav li a span	{
	display:block; 
	padding:17px 66px 26px 7px;
	_padding:14px 66px 26px 7px;
	color:#000;
	display:block; 
	font-size:13px;
	text-decoration:none !important;
	float:left;
	font-weight:normal;
	text-transform:uppercase;
}

/*-------------------hover-active----*/

.row-top-menu  ul.menu-nav li a:hover  {
	background:url(../images/top_menu_left.png) 0 0 no-repeat;
	_background:url(../images/top_menu_left.gif) 0 0 no-repeat;
	padding:0 0 0 5px;
}
.row-top-menu  ul.menu-nav li a:hover span	{
	background:url(../images/top_menu_right.png) top right no-repeat;
	_background:url(../images/top_menu_right.gif) top right no-repeat;
	padding:22px 66px 20px 7px;
	_padding:20px 66px 20px 7px;
	 color:#000;
}

.row-top-menu  ul.menu-nav li.active a   {
	background:url(../images/top_menu_left.png) 0 0 no-repeat;
	_background:url(../images/top_menu_left.gif) 0 0 no-repeat;
	padding:0 0 0 5px;
}
.row-top-menu  ul.menu-nav li.active a span	{
	background:url(../images/top_menu_right.png) top right no-repeat;
	_background:url(../images/top_menu_right.gif) top right no-repeat;
	padding:22px 66px 20px 7px;
	_padding:20px 66px 20px 7px;
	 color:#000;
}