I just noticed something else that you could change. If I click inside one of the fields on the homepage, the site will display the information on that coin in a new pop-up window. Nothing unusual so far. However, I can still scroll up and down the page with the pop-up window still open and click on other coins. It's possible to open three pop-ups in total at the same time. Perhaps you made it like that intentionally or it's a standard feature of the design.

I think it makes more sense that if one pop-up of a coin is open, you shouldn't be able to open the info pop-ups of other coins. And if you click outside of the pop-up, it should close the one that is open and active instead of opening new ones. Obviously, this is entirely subjective on my part.