#nav{
    height: 300px;
    width: 1920px;
    background-image: url(../images/hzhb.jpg);
}
.zt{
    width: 1070px;
    height: auto;
    margin: 20px auto;
}
.zt div{
    width: auto;
    height: 350px;
}

.zt ul li{
    width: 180px;
    height: 55px;
    background-color: black;
    float: left;
    margin: 20px 20px;

}
.none{
    width: 1920px;
    height: 1px;
}
.zt p{
    font-size: 30px;
    font-family: '楷体';
    font-weight: bolder;
    margin-left: 20px;
    text-shadow: 1px 1px;
}