Q1. What are border properties?

border-width, border-style, border-color, and shorthand border.

Q2. What is border shorthand?

border: 2px solid black; combines width, style, color in any order.

Q3. How do you set different borders per side?

Use border-top, border-right, border-bottom, border-left properties.

Q4. What is border-radius?

border-radius creates rounded corners. Can be set per corner or as shorthand.

Q5. How do you remove border?

border: none; or border: 0;