Q1. What is font-family in CSS?

font-family specifies the font for text, with fallback options: font-family: Arial, Helvetica, sans-serif;

Q2. What are web-safe fonts?

Fonts likely installed on most systems: Arial, Times New Roman, Verdana, Georgia, Courier New.

Q3. What is the difference between serif and sans-serif?

Serif fonts have small lines at character ends (Times New Roman). Sans-serif fonts don't (Arial).

Q4. How do you use custom fonts?

Use @font-face rule to define custom fonts, or link to external font services like Google Fonts.

Q5. What is the generic font families?

Generic families: serif, sans-serif, monospace, cursive, fantasy. They provide fallback categories.