.top{position:-webkit-sticky;position:sticky;top:1px;z-index:99}.top .container{height:140px;background-color:#f2f2f2}.top .container .student_info{width:94%;margin:0 auto;height:120px;border-radius:6px;background-color:#1989fa;box-shadow:0 2px 5px #1989fa}.top .container .student_info .info{display:block;width:92%;height:120px;margin:0 auto}.top .container .student_info .info .changeBtn{float:right;margin-top:20px;margin-right:10px}.top .container .student_info .info img{width:60px;height:60px;border-radius:50%;margin-top:4px;display:inline-block;overflow:hidden;margin-top:30px}.top .container .student_info .info .student_desc{display:inline-block;margin-left:10px;line-height:20px;font-size:14px;color:#fff}.top .container .student_info .info .student_desc span{display:block;color:#fff;font-size:14px;padding:2px 0;text-align:left}