Test your knowledge: Cascade Layers, Nesting, and Scoping

Review

1. What does a cascade layer primarily control?

   Cascade layers participate in cascade ordering; they do not change selector matching or layout.
2. What does CSS nesting primarily provide?

   Nesting lets related style rules be expressed relative to an enclosing selector context.
3. What does @scope limit?

   @scope constrains where its contained rules may match and introduces scope proximity into the cascade.
4. Which mechanism should you inspect when the question is which competing declarations win?

   The core cascade algorithm belongs to the Cascade lesson; layers add one cascade-order mechanism.