QR code component with HTML and CSS

What are you most proud of, and what would you do differently next time?

This is my first webpage using basic html and css. Next time I will be made a more complex html and css, and maybe javascript.

What challenges did you encounter, and how did you overcome them?

When I develop this project. The challenges is with I start from scratch. With little experience with front-end. It can be challenges. My challenges is with how to made CSS working fit with the design document.

What specific areas of your project would you like help with?

There is any other way to make project like this with React or something else?