Interactive crowdfunding page

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

Multiple ways/solutions to tackle the problem of updating the UI, at first I was going to add properties/states on the DOM elements themselves but realized I would have to store too many informations so I went with storing states/data on a global object and updating it. I was too undecided on which one to choose and if there's anything better.

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

I think for this project I have too many CSS, so maybe improving my HTML structure and less specific CSS rules for reusability.