Responsive page using CSS media queries

body { display: flex; flex-direction: column; justify-content: center; align-items: center; min-height: 100vh; } Try this to align(top-bottom) and justify(left-right) your project to the center. It applies to the parent component(body), don't forget about !!min-height!!. You can use grid instead of flex too.

Try to make the QR code center, both vertically and horizontally. Also try to make it a bit more large. Everything else seems fine.