Код topmenu для Joomla 1.7 - Вопросы по CSS

ul#mainlevel-nav {
	text-decoration: none;
	list-style: none;
	padding: 0;
	margin: 0 0px;
	float:left;
	color:#E7A038;
	}
ul#mainlevel-nav li {

	float:left;
	font-size:0.9em;
	height:25px;
	line-height:25px;

	display:inline;
	}
ul#mainlevel-nav li a:link, ul#mainlevel-nav li a:visited {
	font-size: 14px;
	font-weight:bold;
	text-align:center;
	text-decoration:none;
	white-space:nowrap;
	display:block;
	overflow:hidden;
	color: #575757;
	margin:0;
	padding:0 20px;
	background: url(/templates/activ/images/pal.gif) no-repeat;
	}
ul#mainlevel-nav #active_menu-nav {
	white-space:nowrap;
	background: url(/templates/activ/images/knop2.gif);
	margin:0;
	padding:0 20px;
	color: #575757;

	}

ul#mainlevel-nav li a:hover {
	white-space:nowrap;
	background: url(/templates/activ/images/knop2.gif);
	margin:0;
	padding:0 20px;
	color: #575757;

	}