.center{padding:20px;-webkit-box-sizing:border-box;box-sizing:border-box}.center .signKnow{margin-top:35px;display:-webkit-box;display:-ms-flexbox;display:flex;-ms-flex-wrap:wrap;flex-wrap:wrap;-webkit-box-pack:center;-ms-flex-pack:center;justify-content:center;font-size:14px}.center .signKnow .btnSuccess{margin-top:55px}.center .signForm{margin-top:10px}