Which of the following is a valid CSS selector?

What does the CSS property 'display' control?

A). A) The layout of an element

B). B) The color of text

C). C) The alignment of text

D). D) The size of the font

Which CSS property is used to set the opacity of an element?

A). A) opacity

B). B) transparency

C). C) visibility

D). D) alpha

Which CSS property is used to specify the style of a border?

A). A) border-style

B). B) border-width

C). C) border-color

D). D) border-type

What does the CSS property 'text-decoration' control?

A). A) The alignment of text

B). B) The size of the font

C). C) The decoration of text

D). D) The color of text

Which CSS property is used to set the text alignment?

A). A) text-align

B). B) align-text

C). C) text-justify

D). D) justify-text

Which CSS property is used to specify the font size?

A). A) font-size

B). B) text-size

C). C) size

D). D) font-style

What does the CSS property 'background-color' control?

A). A) The color of the text

B). B) The color of the background

C). C) The size of the font

D). D) The alignment of text

Which CSS property is used to specify the alignment of the content inside a flex container?

A). A) justify-content

B). B) align-items

C). C) align-content

D). D) flex-align

Which CSS property is used to control the spacing between lines of text?

A). A) line-height

B). B) text-spacing

C). C) line-spacing

D). D) spacing

Which CSS property is used to add space around an element's content?

A). A) padding

B). B) margin

C). C) border

D). D) space