Q1. What are three ways to add CSS?

External CSS (<link>), Internal CSS (<style>), Inline CSS (style attribute).

Q2. What is the cascade in CSS?

Cascade determines which styles apply when conflicts occur, based on importance, specificity, and source order.

Q3. What is specificity?

Specificity is how browsers decide which rule wins: inline > ID > class > element.

Q4. What is the order of priority?

Inline styles (highest) > Internal/External (by source order) > Browser defaults.

Q5. What is the purpose of !important?

!important overrides all other declarations, but should be used sparingly as it breaks natural cascade.