What Is Electromagnetism?

There are four fundamental forces in the universe that we're aware of right. There's the strong force, every particle that has what we call color like quarks and gluons interact with the strong force. But not every particle out there feels this force. And it's really interesting to me that in our sort of table of particles some of them feel some forces and some of them just don't. We don't know why or like why doesn't the electron feel the strong force? We don't knows it just doesn't.