#qr_content_text,#qr_content_url{margin-bottom:15px}input[type="text"],input[type="url"],input[type="submit"],select{width:100%;padding:10px;margin:5px 0;box-sizing:border-box;border:1px solid #ccc;border-radius:4px}input[type="submit"]{background-color:#4CAF50;color:#fff;cursor:pointer}input[type="submit"]:hover{background-color:#45a049}@media screen and (min-width:768px){.qr-form{max-width:400px;margin:0 auto}}