18 Units & Values questions from the CSS bank, written for Indian campus drives and tech interviews. Every question has a verified answer and an AI-tutor explanation on placd.
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A.a length relative to the font size of the root html element
B.a length equal to the advance width of the zero character in the current font
C.a value computed relative to a corresponding dimension of the containing block
D.a length relative to the font size of the current element
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2. Which term means: "a length relative to the font size of the root html element"?
Junior
A.ch unit
B.rem unit
C.percentage length
D.em unit
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3. Which statement is correct?
Junior
A.rem unit — a length relative to the font size of the root html element
B.rem unit — a viewport-relative length equal to one percent of the viewport height
C.rem unit — a value computed relative to a corresponding dimension of the containing block
D.rem unit — a dynamic viewport-height length that adjusts as mobile browser toolbars expand and collapse
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4. What is em unit?
Junior
A.a value computed relative to a corresponding dimension of the containing block
B.a length equal to the advance width of the zero character in the current font
C.a length relative to the font size of the current element
D.a dynamic viewport-height length that adjusts as mobile browser toolbars expand and collapse
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5. Which term means: "a length relative to the font size of the current element"?
Junior
A.em unit
B.rem unit
C.dvh unit
D.percentage length
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6. Which statement is correct?
Junior
A.em unit — a length relative to the font size of the current element
B.em unit — a length relative to the font size of the root html element
C.em unit — a dynamic viewport-height length that adjusts as mobile browser toolbars expand and collapse
D.em unit — a length equal to the advance width of the zero character in the current font
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7. What is vh unit?
Junior
A.a length relative to the font size of the root html element
B.a viewport-relative length equal to one percent of the viewport height
C.a value computed relative to a corresponding dimension of the containing block
D.a dynamic viewport-height length that adjusts as mobile browser toolbars expand and collapse
Answer + AI explanation with a free account
8. Which term means: "a viewport-relative length equal to one percent of the viewport height"?
Junior
A.dvh unit
B.vh unit
C.percentage length
D.em unit
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9. Which statement is correct?
Junior
A.vh unit — a value computed relative to a corresponding dimension of the containing block
B.vh unit — a viewport-relative length equal to one percent of the viewport height
C.vh unit — a dynamic viewport-height length that adjusts as mobile browser toolbars expand and collapse
D.vh unit — a length equal to the advance width of the zero character in the current font
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10. What is ch unit?
Mid
A.a value computed relative to a corresponding dimension of the containing block
B.a length equal to the advance width of the zero character in the current font
C.a length relative to the font size of the root html element
D.a length relative to the font size of the current element
Answer + AI explanation with a free account
11. Which term means: "a length equal to the advance width of the zero character in the current font"?
Mid
A.dvh unit
B.vh unit
C.ch unit
D.percentage length
Answer + AI explanation with a free account
12. Which statement is correct?
Mid
A.ch unit — a value computed relative to a corresponding dimension of the containing block
B.ch unit — a dynamic viewport-height length that adjusts as mobile browser toolbars expand and collapse
C.ch unit — a length relative to the font size of the current element
D.ch unit — a length equal to the advance width of the zero character in the current font
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13. What is dvh unit?
Senior
A.a value computed relative to a corresponding dimension of the containing block
B.a length relative to the font size of the root html element
C.a dynamic viewport-height length that adjusts as mobile browser toolbars expand and collapse
D.a length relative to the font size of the current element
Answer + AI explanation with a free account
14. Which term means: "a dynamic viewport-height length that adjusts as mobile browser toolbars expand and collapse"?
Senior
A.dvh unit
B.em unit
C.vh unit
D.percentage length
Answer + AI explanation with a free account
15. Which statement is correct?
Senior
A.dvh unit — a dynamic viewport-height length that adjusts as mobile browser toolbars expand and collapse
B.dvh unit — a length relative to the font size of the root html element
C.dvh unit — a value computed relative to a corresponding dimension of the containing block
D.dvh unit — a viewport-relative length equal to one percent of the viewport height
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16. What is percentage length?
Mid
A.a length equal to the advance width of the zero character in the current font
B.a dynamic viewport-height length that adjusts as mobile browser toolbars expand and collapse
C.a value computed relative to a corresponding dimension of the containing block
D.a viewport-relative length equal to one percent of the viewport height
Answer + AI explanation with a free account
17. Which term means: "a value computed relative to a corresponding dimension of the containing block"?
Mid
A.rem unit
B.percentage length
C.ch unit
D.dvh unit
Answer + AI explanation with a free account
18. Which statement is correct?
Mid
A.percentage length — a length equal to the advance width of the zero character in the current font
B.percentage length — a viewport-relative length equal to one percent of the viewport height
C.percentage length — a length relative to the font size of the root html element
D.percentage length — a value computed relative to a corresponding dimension of the containing block
Answer + AI explanation with a free account
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