Interactive Responsive FAQ-Accordion Page Using Only CSS, No JS.

I did it with only CSS, I've learnt so many things while trying to do it. I used position property a lot because I couldn't figure out an easier way to position given images, also I didn't use the given colour for background because I checked it from Photoshop and the given colours didn't match so I trusted to Photoshop. Let me know If I made any errors, thanks beforehand!