.form {
    font-family: Helvetica, sans-serif;
    margin: 0 auto;
    padding: 16px;
    background: #f7f7f7;
    text-align: center;
  }
  .form h1 {
    background: #5868bf;
    padding: 20px;
    font-weight: 300;
    text-align: center;
    color: #fff;
    margin: -16px -16px 16px -16px;
    font-size:  25px;
  }
  .form input[type="text"],
  .form input[type="url"] {
    box-sizing: border-box;
    width: 100%;
    background: #fff;
    margin-bottom: 1em;
    border: 1px solid #ccc;
    padding: 1em;
    font-size: 1rem;
    color: #555;
  }

  .form .options {
    display: flex;
    justify-content: space-around;
    margin-bottom: 1em;
  }
  
  button {
    box-sizing: border-box;
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    margin: 0 auto;
    padding: 1em;
    background: #5868bf;
    border-bottom: 2px solid #5868bf;
    border-top-style: none;
    border-right-style: none;
    border-left-style: none;
    color: #fff;
    cursor: pointer;
  }
  .form button:hover {
    background: rgba(88,104,191, 0.5);
  }

  .form #error {
    margin-top: 2em;
    font-weight: bold;
    color: #800;
    display: none;
  }
  
  #qrcode-container{
      display:none;
  }
  
  .qrcode{
    padding: 16px;
    background-color: #FFF;
    max-width:100%;
    margin-bottom: 1em;
  }
  .qrcode img{
    margin: 0 auto;
    width: 80%;
    max-width:300px;
    border: 1px solid #EEE;
  }
  .qrcode canvas{
    opacity: 0;
    position: fixed;
    z-index: -1;
  }