body {
    background:  no-repeat;
}

.zhengwufw-main {
    overflow: hidden;
}

.zhengwufw-titlt {
    text-align: center;
    margin: 125px 0 62px;
}

.zhengwufw-box {
    width: 1200px;
    height: 595px;
    background:  no-repeat;
}

.zhengwufw-box ul li {
    float: left;
    margin: 30px 0 0 29px;
}