11.
How are colors represented using HSL values in CSS?
12.
What does the color property in CSS use to specify colors using HSLA values?
13.
Which CSS property sets the color of text within an element?
14.
What does the background-color property define in CSS?
15.
Which CSS property sets the color of an element's border?
16.
What is the purpose of the box-shadow property in CSS?
17.
Which color format uses predefined color names like red, blue, green, etc.?
18.
How are colors represented using hexadecimal codes in CSS?
19.
Which CSS property is used to set the color of an element using RGB values?
20.
What does RGBA stand for in CSS color values?