.stu-add-button_right{float:right;margin-top:10px;margin-right:10px}.export-btn{color:#fff;background-color:#409eff;border-color:#409eff;padding:10px 20px;font-size:14px;border-radius:4px;margin-left:10px}.stu-add-button{margin-top:10px;margin-left:10px}.stu-head-search{width:250px;margin:0 10px}.stu-add-lable{margin-top:10px;margin-left:10px}.erweima canvas{width:80%!important;height:80%!important}