.biaoti{
    margin-top: 6%;
    margin-bottom:6%;
    width: 100%;
    /* border: 1px solid red; */
    position: relative;
}
.bt_l{
position: absolute;
left: 20%;
    width: 20%;
    top: 18px;
    border: 2px solid #C7C7C7
}
.bt_r{
    position: absolute;
    right: 20%;
        width: 20%;
        top: 18px;
        border: 2px solid #C7C7C7
    }

.biaoti h1{
    color: #C7C7C7;
    text-align: center
}

.content{
    position: relative;
    width: 100%;
    overflow: hidden;
    height:600px;
    /* background-color: #000; */
    /* border: 1px solid red     */
}
.cont_z{
    position: relative;
    width: 1200px;  
    /* overflow: hidden; */
    /* background-color: #d78; */
/* border: 1px solid red; */
}

.con_tu{
    position: relative;
    /* width: 1100px; */
    height: 89%;
    /* border: 1px solid #00CC66;   */
    /* background-color: #00CC66 */
}
.img1 {
    /* border: 1px solid red; */
    background-color: #fff;
    float: left;
    margin: 2px;
    /* height: 20px; */
    margin-bottom: 40px;
    /* display:inline-block; */
    /* text-align: center */
}

.img1 h3{
    margin-top: 60px;
    margin-bottom: 40px;
    color: #404040;
    font-weight:normal;
    margin-left:16px;
}
.img1 img{
    /* width: 100%; */
text-align: center
    /* border: 1px solid red */
}
.box{
    clear: both
}
.img_7 img{
    width: 235px;
    height: 142px;
}