/*导航栏设置*/

nav {
    margin:0px;
    text-align:center;}
nav ul {
    padding:0 20px;
    display:inline-table;
    position:relative;}
nav ul ul {
    display:none;}
nav ul li {
    float:left;}
nav ul::after {
    content:"";
    display:block;
    clear:both;}
nav ul li a {
    display:block;
    padding:10px 20px;
	color:#FFF;
    text-decoration:none;
    font-family:"微软雅黑";}
nav ul li:hover > ul {
    display:block;}
nav ul li:hover {
    background:linear-gradient(to bottom,#00C,#009);}
nav ul li:hover a {
    color:#FFF;
	background:#039;
	text-decoration: none;}
nav ul ul {
    background:#03C;
    border-radius:0;
    position:absolute;
	z-index:2;
    top:40px;
    padding:0;}
nav ul ul li {
    float:none;
    border-top:0px solid  #039;
    border-bottom:0px solid #575f6a;}
nav ul ul li a {
    color:#039;}   
nav ul ul li a:hover {
    background:#2b57af;
	color: #fff;}
nav ul ul ul {
    width:100%;
    position:absolute;
    left:100%;
    top:50%;}