Responsive FAQ Accordion Card using flexbox & css position properties

This newbie wasn't as easy as it seems xD especially when it comes to positioning multiple images on different screens but I had fun doing this challenge!

The screenshot is still showing missing card background even after I updated it so I suggest you preview the site!

Things I look forward to:

• mobile first approach as it makes the codes more neat and tidy and faster when adjusting media queries

Any feedback would be great! I'm open to both improvements to the output and shorter codes as much as possible.