QR Code Component using HTML & CSS

Congrats on successfully completing this project

You did a good job and it's looks really great

Just a small suggestion, you can use media query at max-width 401px to change the margin of h1 and p inside article element to margin-block, it will avoid taking extra white space

@media only screen and (max-width: 401px) {
h1 {
margin-block: 1.5625rem
}

p {
margin-block: 0.875rem;
}
}