/*一级*/
        #menu {
            /*width: 800px;*/
        }
        #nav li {
            display: block;
            float: left;
            /*width: 100%;*/
            /*padding: 0 10px;*/
            position: relative;
        }
        #nav li a {
           display: block;
           /*line-height: 80px;*/
           position: relative;
           text-align: center;
           
            
        }
        
        #nav li a:hover {
            color: #fff;
        }
/*二级*/
       #nav .sub-menu {
            position: absolute;
            background-color: #fff;
            display: none;
            width: 160px;
            /*margin-left: -20px;*/
            z-index: 9;
            top:66px;
            left: 1px;
            background-color: #d82634;
        }
      #nav .sub-menu li{
            float: initial;
            height: 32px;
            width: 100%;
            /*padding: 10px;*/
            border-top: 0;
        }
      #nav .sub-menu li:hover{
            background: #fff;
            padding: 0!important;
            margin-left: 0!important;
         }
       #nav .sub-menu a {
            display: block;
            line-height: 32px;
            position: relative;
            text-align: center;
            color: #fff;
        }
        .sub-menu{
            padding-left: 0px!important;
        }
       #nav .sub-menu li a:hover:after{
           width: 0;
       }
       #nav .sub-menu li a:hover {
            color: #000;
        }