Q1. How do you link external CSS?
Use <link rel="stylesheet" href="styles.css"> in <head> section.
Q2. Advantages of external CSS?
Reusable across pages, easier maintenance, browser caching improves performance.
Q3. Can you link multiple CSS files?
Yes, order matters - later files override earlier ones with same specificity.
Q4. What is media attribute for?
Specifies when CSS applies: media="print" for print styles, media="screen" for screen.
Q5. Disadvantage of external CSS?
Extra HTTP request required, which can slightly increase page load time (mitigated by caching).