* {
    margin: 0px;
    padding: 0px;
    border: 0;
    box-sizing: border-box;
}

body {
    font-family: "Arial";
    font-size: 16px;
    line-height: 20px;
    width: 100%;
    min-width: 1200px;
    background-color: #ffffff !important;
}

ul,
li {
    list-style-type: none;
}

a {
    color: #000;
}

a,
a:hover {
    text-decoration: none;
}

.wdiv {
    width: 1200px;
    margin: 0 auto;
    padding: 0 12px;
    clear: both;
    position: relative;
}

.nav {
    width: 100%;
    height: 60px;
    background: url('http://images-china-cn.njmu.s5.bt8.net/images1/en/scio2021/head/nav_bg.jpg') repeat-x;
}

.nav ul {
    display: inline-block;
    width: 100%;
    text-align: center;
}

.nav li {
    height: 60px;
    display: inline-block;
    padding: 0 9px;
    position: relative;
}

.nav li a {
    font-size: 20px;
    line-height: 60px;
    color: #fff;
}

.nav li a:hover {
    text-decoration: underline;
}

.nav .featured:hover {
    background-color: #294aa0;
}

.show {
    width: 0;
    height: 0;
    border-left: 5px solid transparent;
    border-right: 5px solid transparent;
    display: inline-block;
    margin-left: 5px;
    vertical-align: 20%;
    cursor: pointer;
}

.arrow_down {
    border-top: 5px solid #fff;
}

.arrow_up {
    border-bottom: 5px solid #fff;
}

.nav li .listshow {
    width: 256px;
    display: none;
    position: absolute;
    left: -65px;
    z-index: 99999;
}

.nav li .listshow li {
    width: 256px;
    height: 40px;
    float: none;
    padding: 0;
    text-align: center;
    margin-top: 1px;
    background-color: #294aa0;
}

.nav li .listshow li a {
    font-size: 16px;
    line-height: 40px;
    color: #fff;
}