Art has no rules

According to Kant art has no rules and norms. For him anything that has rules is knowledge, and everything that is knowledge can be made from those rules and norms. The question then is: How can art be made?
Going back into history from the prehistoric period, and later Renaissance and Modern times we see that art had always followed different kinds of rules and norms.
Some of them were eventually broken, some of them stayed longer than others, but there was always someone who tried to make up rules for art. According to Kant art has no rules, b...