Vanilla CSS is verbose, not DRY, and challenging to navigate and maintain. You don't NEED a preprocessor. But as you find yourself writing larger CSS codebases

Vanilla CSS is verbose, not DRY, and challenging to navigate and maintain. You don't NEED a preprocessor. But as you find yourself writing larger CSS codebases or trying to do more sophisticated things with it, you may find yourself wishing for the features you get from a preprocessor.