.nvc-scan-canvas,
.nvc-scan-video,
.nvc-scan-canvas-overlay,
.nvc-scan-qrcode-image {
    position: absolute;
    left: 0;
    top: 0;
}

.nvc-scan-qrcode-image {
    display: none;
}
.nvc-scan-qrcode-image.nvc-active {
    display: block;
    right: 0;
    bottom: 0;
}