Responsive css and js solution with the help of JSDoc and OOP concepts

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

Written in HTML, CSS, JS, this project is too small to go for something like NextJS which is want I prefer to work with, I am happy with how it turned out, I used JSDoc to explain my code, and put everything inside a class to not pollute the global environment too much

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

Anyone that has any sort of advice is more than welcome to give it, I appreciate all the help I could get, and I am thankful to all that that help me :)