18. How can you ensure that an element's width and height include padding and border, but not margin?

How can you set different margin values for each side of an element?

A). margin-top, margin-right, margin-bottom, margin-left

B). margin-horizontal, margin-vertical

C). margin-sides, margin-center

D). margin-all

Which property can be used to center an element horizontally on a webpage?

A). margin: 0 auto;

B). padding: 0 auto;

C). align-items: center;

D). text-align: center;

Which CSS property is used to specify the padding of an element?

A). padding

B). margin

C). border

D). spacing

Which CSS property is used to specify the margin of an element?

A). margin

B). padding

C). border

D). spacing

What happens to an element's total size when margin is added?

A). Increases the space around the element without changing its size

B). Decreases the element's total size

C). Expands the content area without affecting its size

D). Increases the element's total size

Which property can be used to hide an element without affecting the layout of the page?

A). display: none;

B). visibility: hidden;

C). opacity: 0;

D). position: absolute; left: -9999px;

What is the function of the border in the CSS box model?

A). To create a visible boundary around the content and padding

B). To create space between elements

C). To create space outside the border

D). To style the content area

What is the purpose of margin in the CSS box model?

A). To create space outside the border, separating elements

B). To create space between the content and the border

C). To style the content area

D). To create space between elements, but inside the border

Which CSS property is used to specify the border of an element?

A). border

B). padding

C). margin

D). outline

What happens to an element's total size when padding is added?

A). Increases the element's total size

B). Decreases the element's total size

C). Does not affect the element's total size

D). Increases the content size but not the total size