CSS and HTML only

** What did you find difficult while building the project? **

• Re-adjusting image size according to parent container size
• Aligning an html element at the center horizontally and vertically

** Which areas of your code are you unsure of? **

• The way I handled the image and qr-card div elements. I wanted the QR image to adjust its size according to its parent container and not go out of its borders.

** Do you have any questions about best practices? **

• I really would like to know if there are better ways or other CSS properties that I could have used to handle the problem I encountered in the problem I stated in the previous question.