What are pseudo-classes and pseudo-elements?

Short answer: Pseudo-class: targets an element’s state. hover { color: red; } Pseudo-element: targets part of an element. p::first-line { font-weight: bold; } Follow me on LinkedIn: Key Takeaway: :hover changes behavior; ::before and ::after insert content.

Real-world example (ShopNest)

ShopNest’s browser cart uses modern JavaScript: fetch APIs with async/await, modules, and clear error handling.

Say this in the interview

1. Define — one clear sentence (the short answer above).
2. Example — relate it to a project like ShopNest or your real work.
3. Trade-off — when you would not use it.