#qrcode{margin:20px}#qrcode canvas{display:none}#qrcode img{margin:0 auto;width:50%}.tabbtd{display:inline-block;padding:4px 8px;flex:1;border:1px solid #eee;transition:all .45s cubic-bezier(.23,1,.32,1);border-radius:5px}.tabbtd.active{border-color:#0081cc}.mu-demo-form{width:100%;max-width:460px}