Explaine the difference between compound sentence and compound complex sentence?

First of all a simple sentence has a independent clause:

Janet walked to school.

A compound sentence has two simple sentences inside it with a conjunction/joining Word to join it:

Janet walked to school, the others rode their bikes.

A complex has an independent clause and a dependent clause inside one sentence:

Janet walked to school, but the others didn't.

A independent clause makes sense on it's own but a dependent clause doesn't.