QR-code-component Public

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 😁😊😉

Code is readable. The solution does differ a good bit from the design. Looks like you tried to center the card in the middle of the page, but I think setting the view height of the body to 100vh and then the height of your .main to 100% might have helped you get there.