.top{
    overflow: hidden;;height: 45px;background: #eee;border-bottom: 1px solid #ddd;border-top: 2px solid #01339e;box-sizing: border-box;}

.top .l{width: 500px;height: 100%;display: flex;justify-content: left;align-items: center;float: left;line-height: 45px;font-size: 15px;color: #666}

.top .r{height: 100%;float: right;display: flex;justify-content: left;align-items: center;}

.top .r li{width: 31px;height: 20px;float: left;margin-left: 20px;}

.top .r li a{display: block;width:31px;height: 20px;margin-top: 12.5px;}

.top .r li .a1{background: url("../images/china.png") center no-repeat;}

.top .r li .a2{background: url("../images/en.png") center no-repeat;}

.mainbox{width: 100%;}
.container{width: 1200px;margin: 0 auto;}