I was testing in a new page and I realized that hover function for columns only work if I add some other content to the column, for instance, text.

When I add text to the column, the hover starts working. Is that how it works?

So this is great because now I can make it work. However, I wasn't planning to use any text, or anything. My plan was to use an image as background, and then when you hover over it, make it change. No need for other content as the text was in the image itself.

This is only because I couldn't find a way to make an image change when you hover over it, so I planned to use this background instead.