.detail_txt {    width: 668px;
    height: auto;
    text-align: center;
    font-size: 16px;
    font-family: "Microsoft YaHei";
    color: rgb(51, 51, 51);
    margin: 45px auto;
    line-height: 30px;
}

.detail_table {
    text-align: center;
    margin-bottom: 50px;
}

.detail_pro ul li {
    display: inline-block;
}

.detail_pro ul li:nth-child(even) {
    float: right;
}

.detail_pro ul li p {
    text-align: center;
    font-size: 16px;
    font-family: "Microsoft YaHei";
    color: rgb(102, 102, 102);
    line-height: 50px;
}

.detail_pro ul li img {
    box-shadow: 5px 5px 5px #ccc;
    width:580px;
    height:400px;
}