.choose-btn{color:#fff;background:#2d8cf0;border:0;width:60px;height:30px;border-radius:3px}.mr20{margin-right:20px}.ml20{margin-left:20px}.common-width{width:200px}.common-margin{margin:0 20px}.mb20{margin-bottom:20px}.modal-padding{padding:10px 50px 30px}