Responsive FAQ accordian page with vanilla JavaScript

This was my best attempt to recreate the FAQ accordian page.

My code feels pretty messy, not sure if it is possible to make the code a little "cleaner" to look at. I tried my best to not use <div> too excessively but it turned out it was required in the end to make it work.

Also had a bit of trouble making the images for the mobile version a bit smaller so that everything "fits" to one page. Any feedback on this would be appreciated :)

Overall, I feel pretty proud this was the first time I had used vanilla JS and getting the page to respond through clicks.

All other feedback again appreciated thanks