Theme Horse

I managed to solve the problem thanks to a custom css but I’m sure you would have helped me without problems so thanks anyway! I have one more question. How could I divide the style of my home page according to categories? Would i need another css code?

Let me give you an example, this is my site: http://www.amoglianimali.net but I would like to structure the home page like this: https://cefalunews.org/