Responsive FAQ accordion with HTML, CSS and Javascript

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

This is the first time I build a FAQ accordion. In this project I learned how to made it and how to make the background image of an element responsive.

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

When I tapped on a question, the #faq-container moved a little to the left because scrolling was activated. I solved it just adding a "overflow-y: scroll" to body, there will always be a scroll bar and therefore there will be no annoying scrolling.