.qrcode-reader {
  position: relative;
  display: block;
}
.qrcode-reader__camera {
  display: block;
  object-fit: contain;
  max-width: 100%;
  max-height: 100%;
}
.qrcode-reader__snapshot {
  display: none;
}
.qrcode-reader__overlay {
  position: fixed;
  top: 0;
  bottom: 0;
  left: 0;
}
#camera-switch {
  position: fixed;
  z-index: 9999 !important;
  background: transparent !important;
  color: #fff;
  font-size: 2em;
  padding: 10px 20px;
  top: 50px;
  right: 20px;
}