body {
    width: 1920px;
    margin: 0 auto;
    font-family: "微软雅黑";
}

#head {
    width: 1920px;
    height: 100px;
    /*position: fixed;*/
    top: 0;
    left: 0;
    /*z-index: 1;*/
    background-image: url("../img/DHT.jpg");
   
    
}

    #head a, #head a:hover, #head a:link, #head a:active {
        text-decoration: none;
    }

.menu {
    width: 100px;
}

    .menu .btna {
        width: 100%;
        display: inline-block;
        height: 30px;
        text-align: center;
    }

    .menu ul {
        width: 100%;
        padding: 0;
        margin: 0;
        list-style: none;
        display: none;
    }

        .menu ul li {
            width: 100%;
            padding: 0;
            margin: 0;
            list-style: none;
        }

.current {
    width: 100px;
    height: 400px;
    z-index: 9999999999999;
    position: relative;
    background-color: rgba(67,167,255,0.9);
}

    .current .btna {
        background-color: rgba(67,167,255,0.9);
        width: 100%;
    }

    .current ul {
        margin-top: 15px;
    }

.menu ul li {
    line-height: 50px;
    /*border:1px solid blue;*/
    text-align: center;
    font-size: 18px;
    width: 100px;
    height: 50px;
    color: #ffffff;
}
#xw{

  width:1500px;

  height:1200px;

  margin-top:150px;

 margin-left:200px;

  /*border:1px solid red;*/
 
}
.xw1{
    width:100%;
    height:32%;
    margin-bottom:1%;
    /*border:1px solid red;*/
   

}
#contact{
     width:1920px;
     height:393px;
      background-image:url("../img/WSRJ2_06.png");

}