QR-Code Challenge by Using HTML and CSS including media query !!

I encourage you to use this technique to make the card responsive with ease:

.card {
width: 90%;
max-width: 37.5rem;
}

On the smaller screens card will be 90% of the parent (here body), but as soon as the card will be 37.5rem (600px) it will lock with this size.

Also to put the card in the center I advise you to use this code snippet:

.container {
display: grid;
place-items: center;
}

Hope you found this comment helpful 💗💗💗

Good job and keep going 😁😊😉

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.

div qr-container should become <main>, it's common to use classes for css (not id)

Hope you found this comment helpful :)