#main_wrap {
        margin:auto;
        padding:0;
	    width:1000px;}


/* @group main_navigation */
#main_navigation ul {
	font-size: 16px;   /* 导航条字号 */
	list-style: none;
    height:auto;
    margin:0;
    padding:0;}

#main_navigation {
	background: none; 
	height: 35px;
    margin:0;
	overflow: visible;
	padding-left: 20px;}

#main_navigation li {
	float: left;
	position: relative;
    list-style: none;
	z-index: 5;}

#main_navigation li a {
	color: #310302; /* 导航条字体颜色 */
	display: block;
	width: 91px;
	height: 35px;  /* 导航条滑动框高度 */
	text-decoration: none;
	line-height: 35px;
	text-align: center;
	margin-top: 0px;}

#main_navigation li ul li a {
	font-size: 14px;  /* 下拉菜单字号 */
	width: 300px;     /* 下拉菜单宽度(原160px) */ 
	height: 25px; 
	line-height: 25px;
	text-align: left;
/*	margin-left: 8px;  下拉菜单文字左边距 */
	margin: 6px;}

#main_navigation li ul li a:hover, #main_navigation li.focus ul li a:hover {
	background: #FFFFFF;}

#main_navigation li.focus a, #main_navigation li a:hover {
	background: none;}

#main_navigation li.focus ul li a {
	background: none;}

#main_navigation li ul {
	position: absolute;
	top: 35px; /* 下拉菜单弹出的y位置 */
	left: 10px; /* 下拉菜单弹出的x位置 */
	background: #E0E0E0;
	border-color: #E0E0F0;
	filter: alpha(opacity=90);                                        /* 下拉菜单背景透明度ie 4-9 */
	opacity: 0.9;                                                     /* 下拉菜单背景透明度ie9 + etc...modern browsers, firefox, chrome, opera 和 safari */
	-webkit-opacity: 0.9;                                             /* 下拉菜单背景透明度older safari/chrome browsers */
	-moz-opacity: 0.9;                                                /* 下拉菜单背景透明度netscape and older than firefox 0.9  */
	-khtml-opacity: 0.9;                                              /* 下拉菜单背景透明度safari 1.x (pre webkit!) 老式khtml内核的safari浏览器  */
	border-style: none solid solid;
	border-width: medium 1px 1px;
	display: none;}

#main_navigation li ul li{
	filter: alpha(opacity=90);                                        /* 下拉菜单项背景透明度ie 4-9 */
	opacity: 0.9;                                                     /* 下拉菜单项背景透明度ie9 + etc...modern browsers, firefox, chrome, opera 和 safari */
	-webkit-opacity: 0.9;                                             /* 下拉菜单项背景透明度older safari/chrome browsers */
	-moz-opacity: 0.9;                                                /* 下拉菜单项背景透明度netscape and older than firefox 0.9  */
	-khtml-opacity: 0.9;                                              /* 下拉菜单项背景透明度safari 1.x (pre webkit!) 老式khtml内核的safari浏览器  */
	float: none;}