body {
    background-color: #ec1f27;
}
#qr-code canvas {
    border: white;
    border-style: solid;
    border-width: 1.75rem;
    border-radius: 4rem;
    padding: 4rem;
    position: absolute;
    top: 0;
    left: 0;
    bottom: 0;
    right: 0;
    margin: auto;
}