Responsive QR-Code using HTML & CSS Flexbox

Hello!

Congrats on submitting your solution :)

"I find difficulty in making the layout of the qr-code-container"

I saw that you've set fixed width and height for the container. This makes it difficult to adjust the container according to different screen sizes. Try setting a max-width for the card container only (but not height, let the contents expand the container vertically and handle the height). And center the container in page vertically and horizontally.

Hope this was helpful. HAPPY CODING!