.banner {    margin-top: 33px;}.banner img {    width: 100%;    height: auto;}.leader_title {    text-align: center;    font-size: 25px;    line-height: 50px;    border-bottom: solid 5px #1a337b;    width: 100px;    margin: 50px auto;    color: #1a337b;}.leader_img {    width: 500px;    margin: 0 auto;}.leader_img img {    width: 100%;    height: auto;}.leader_show {    width: 900px;    margin: 50px auto;    line-height: 35px;    color: #333;}.leader_show p {    text-indent: 2rem;}.leader_show div {    margin-bottom: 30px;}.leader_show h3 {    margin-bottom: 10px;}.leader_show b {    color: #333;}