#qr-container {
  text-align: center;
  margin: 10px;
  max-width: 400px;
}

#qr-canvas {
  margin: auto;
  max-width: 400px;
}

#qr-canvas-container {
  max-width: 400px;
}

#btn-scan-qr {
  cursor: pointer;
  font-size: 80px;
}

#btn-scan-qr img {
  height: 10em;
  padding: 15px;
  margin: 15px;
  background: white;
}

#qr-result {
  font-size: 1.2em;
  margin: 20px auto;
  padding: 20px;
  max-width: 700px;
}