Okay kiddo, there are some people who live in Slovenia called Croats. They are a group of people who have their own culture and language, and they are part of the bigger Croatian nation.
Even though they live in Slovenia, they still keep their own traditions and customs. This includes things like the food they eat, the music they listen to, and the way they celebrate special occasions.
Some of them even speak a special type of Croatian language called Kajkavian, which is different from the standard Croatian language spoken in Croatia.
So basically, there are some Croats who live in Slovenia and they have their own unique culture and language that they keep alive even though they are in a different country.