ul,li{
                margin: 0;
                padding: 0;
                list-style: none
            }
            .main{
                text-indent: 2em;
                font-size: 16px;
                font-family: '宋体'
            }
            .target{
                margin: 8px 0;
            }
            .wrap{
                margin: 0 auto;
            }
           .wrap ul li{
                text-indent:0;
                list-style-type: decimal;
                margin-left: 80px;
                line-height: 1.5;
            }