MCQs Of Class 7: Width and Height
1. What does the width property in CSS define?
a) The vertical size of an element
b) The horizontal size of an element
c) The amount of space around an element
d) The margin between elements
Answer: b) The horizontal size of an element
Explanation: The width property in CSS specifies the horizontal size of an element.
2. What happens if you do not specify a width for an element in CSS?
a) The element will have a width of 0px.
b) The element's width will be determined by its content.
c) The element will be automatically hidden.
d) The element will take up the full width of the page.
Answer: b) The element's width will be determined by its content.
Explanation: If no width is specified, the element’s width will be based on its content by default.
3. What does the height property in CSS control?
a) The amount of space outside the element
b) The height of the viewport
c) The vertical size of an element
d) The margin between two elements
Answer: c) The vertical size of an element
Explanation: The height property in CSS defines the vertical size of an element.
4. Which of the following is true about box-sizing: border-box;?
a) It only affects padding of an element.
b) It includes padding and border within the element's specified width and height.
c) It only adjusts the height of an element.
d) It has no effect on box dimensions.
Answer: b) It includes padding and border within the element's specified width and height.
Explanation: box-sizing: border-box; ensures that padding and borders are included in the element’s total width and height.
5. What is the default value of the box-sizing property in CSS?
a) content-box
b) border-box
c) padding-box
d) margin-box
Answer: a) content-box
Explanation: The default value of the box-sizing property is content-box, which means padding and border are not included in the specified width and height.
6. What is the effect of the min-width property in CSS?
a) It sets the maximum width of an element.
b) It prevents an element from shrinking smaller than the specified value.
c) It determines the width of an element in percentages.
d) It allows the element to stretch to any width.
Answer: b) It prevents an element from shrinking smaller than the specified value.
Explanation: The min-width property ensures that an element’s width does not become smaller than the specified value, regardless of content.
7. Which CSS property can be used to make an element’s width responsive?
a) height
b) min-width
c) width in percentage
d) padding
Answer: c) width in percentage
Explanation: The width property in percentage allows an element’s width to be responsive to the parent container.
8. Which CSS property is used to create scrollbars for an overflowing element?
a) overflow
b) width
c) padding
d) border
Answer: a) overflow
Explanation: The overflow property is used to control what happens when content overflows an element’s box, such as adding scrollbars.
9. What does the overflow: auto; property do?
a) It hides any overflowing content.
b) It adds scrollbars only when content overflows.
c) It adjusts the size of the element automatically.
d) It ensures the content stays within the element's width.
Answer: b) It adds scrollbars only when content overflows.
Explanation: overflow: auto; adds scrollbars if the content inside the box exceeds the defined width or height.
10. What is the function of the min-height property in CSS?
a) It sets the maximum height of an element.
b) It ensures the element is at least the specified height.
c) It adjusts the height based on content.
d) It determines the element’s height in percentages.
Answer: b) It ensures the element is at least the specified height.
Explanation: min-height guarantees that the element will not be shorter than the specified height, even if the content is smaller.
11. How do you make the height of an element fixed?
a) Set the height property to a specific value.
b) Use min-height with a percentage.
c) Use width: auto;.
d) Use max-width.
Answer: a) Set the height property to a specific value.
Explanation: To set a fixed height for an element, assign a specific value to the height property.
12. Which of the following properties ensures that a box will never shrink below a certain width?
a) width
b) max-width
c) min-width
d) height
Answer: c) min-width
Explanation: The min-width property ensures that an element does not shrink below the specified width.
13. What does the box-sizing: border-box; rule do to the total width of an element?
a) It reduces the element’s width by the amount of padding.
b) It makes the padding and border part of the total width.
c) It removes the padding and border from the element’s box model.
d) It increases the width of the element by the padding size.
Answer: b) It makes the padding and border part of the total width.
Explanation: box-sizing: border-box; includes padding and borders within the width and height of an element.
14. Which property can you use to ensure that an element maintains a minimum height regardless of content?
a) min-height
b) height
c) max-height
d) padding
Answer: a) min-height
Explanation: min-height ensures an element’s height is never smaller than the specified value.
15. How do you make an element’s width responsive and adjust based on the screen size?
a) Use width: auto;.
b) Set the width in percentage.
c) Set the width in pixels.
d) Use height: 100%;.
Answer: b) Set the width in percentage.
Explanation: Using a percentage value for width makes the element adjust based on the screen size.
16. What happens if the overflow property is set to hidden?
a) It displays scrollbars.
b) It hides the overflowing content.
c) It resizes the content.
d) It increases the height of the element.
Answer: b) It hides the overflowing content.
Explanation: overflow: hidden; hides any content that overflows the element's box.
17. What will happen if you use overflow: scroll; on an element?
a) The content will shrink.
b) It will always show scrollbars, regardless of overflow.
c) It will add scrollbars only when necessary.
d) It will adjust the element’s width automatically.
Answer: b) It will always show scrollbars, regardless of overflow.
Explanation: overflow: scroll; forces scrollbars to always be visible, even if the content does not overflow.
18. What is the default value of the overflow property in CSS?
a) auto
b) hidden
c) scroll
d) visible
Answer: d) visible
Explanation: The default value of the overflow property is visible, which allows content to overflow the element.
19. Which property would you use to set the space around the content inside a box?
a) margin
b) padding
c) width
d) height
Answer: b) padding
Explanation: The padding property is used to create space inside the element, between the content and the border.
20. Which CSS property can be used to make the width of an element responsive to its parent container?
a) max-width
b) width in percentage
c) height
d) min-height
Answer: b) width in percentage
Explanation: By setting width as a percentage, the element’s width becomes responsive to its parent container’s size.
21. What is the effect of min-width: 300px; on an element?
a) The element will never be smaller than 300px in width.
b) The element will always be 300px wide.
c) The element’s width will shrink to fit content.
d) The element will stretch to 300px.
Answer: a) The element will never be smaller than 300px in width.
Explanation: min-width ensures the element maintains at least the specified width.
22. What will happen if the height property is not defined on an element?
a) It will be hidden.
b) The height will automatically be set to the content’s height.
c) The element will be displayed with zero height.
d) It will stretch to the full height of the page.
Answer: b) The height will automatically be set to the content’s height.
Explanation: When no height is defined, an element’s height is automatically determined by its content.
23. Which of the following properties can be used to ensure that an element does not shrink below a specific height?
a) max-height
b) height
c) min-height
d) padding
Answer: c) min-height
Explanation: The min-height property ensures that an element cannot shrink smaller than the specified value.
24. Which of the following defines the area outside the border of an element?
a) margin
b) padding
c) width
d) height
Answer: a) margin
Explanation: The margin property defines the space outside the element’s border, pushing other elements away.
25. What does box-sizing: content-box; do?
a) Includes padding and borders in the total width and height.
b) Excludes padding and borders from the total width and height.
c) Adjusts the height of the content box.
d) Changes the border’s color.
Answer: b) Excludes padding and borders from the total width and height.
Explanation: box-sizing: content-box; only considers the content in the width and height, excluding padding and borders.
26. What does the max-width property do in CSS?
a) It sets the minimum width of an element.
b) It limits the element's width to a maximum value.
c) It makes the element stretch to fill available space.
d) It sets the element's width to a fixed value.
Answer: b) It limits the element's width to a maximum value.
Explanation: max-width restricts the element’s width from exceeding the specified value.
27. What is the default value of the overflow-x property?
a) visible
b) hidden
c) scroll
d) auto
Answer: a) visible
Explanation: By default, the overflow-x property is set to visible, meaning horizontal overflow is visible.
28. How do you set the height of an element to be 50% of its parent element’s height in CSS?
a) Set height: 50%;
b) Set min-height: 50%;
c) Set max-height: 50%;
d) Set height: auto;
Answer: a) Set height: 50%;
Explanation: The height: 50%; rule makes the element’s height 50% of its parent element’s height.
29. How do you make an element’s height responsive in CSS?
a) Set height: 100%;.
b) Set height in percentages.
c) Set max-height in pixels.
d) Set overflow: hidden;.
Answer: b) Set height in percentages.
Explanation: Setting height in percentages makes an element's height responsive to its container's size.
30. Which property controls the overflow of content in a single axis (horizontal or vertical)?
a) overflow-x or overflow-y
b) overflow
c) margin
d) width
Answer: a) overflow-x or overflow-y
Explanation: overflow-x controls horizontal overflow, and overflow-y controls vertical overflow.
31. What is the purpose of the border property in CSS?
a) To create space inside the element.
b) To define the outer edge of the element.
c) To make the element scrollable.
d) To define the width and height of the element.
Answer: b) To define the outer edge of the element.
Explanation: The border property defines the edge of an element and can be customized with color, width, and style.
32. How do you center an element horizontally in CSS?
a) Set margin-left: auto; margin-right: auto;
b) Set padding: auto;
c) Set width: auto;
d) Set text-align: center;
Answer: a) Set margin-left: auto; margin-right: auto;
Explanation: Setting margin-left and margin-right to auto centers a block element horizontally when it has a defined width.
33. Which property controls the space between the content and the border of an element?
a) padding
b) margin
c) height
d) border-width
Answer: a) padding
Explanation: The padding property defines the space between the content of an element and its border.
34. What is the function of the max-height property in CSS?
a) It sets the maximum width of an element.
b) It restricts the element's height to a specific value.
c) It removes the height restriction of an element.
d) It makes the element stretch to fill available space.
Answer: b) It restricts the element's height to a specific value.
Explanation: max-height limits the element’s height to the specified value.
35. How do you create a responsive layout with equal width columns in CSS?
a) Use float.
b) Use width: 100%;.
c) Use Flexbox or Grid.
d) Use display: block;.
Answer: c) Use Flexbox or Grid.
Explanation: Flexbox or CSS Grid allows creating responsive layouts with equal-width columns.
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Sure! Here are 15 more multiple-choice questions related to CSS for beginners:
36. What does the display: block; property do in CSS?
a) Makes the element inline.
b) Makes the element a block-level element.
c) Makes the element invisible.
d) Sets the element to float.
Answer: b) Makes the element a block-level element.
Explanation: display: block; makes the element take up the full width available and start on a new line.
37. How do you make an element invisible but still take up space on the page in CSS?
a) Use visibility: hidden;
b) Use display: none;
c) Use opacity: 0;
d) Use visibility: collapse;
Answer: a) Use visibility: hidden;
Explanation: visibility: hidden; makes the element invisible, but it still occupies space in the layout.
38. How do you set the width of an element to be responsive based on the viewport width in CSS?
a) Use width: 50vw;
b) Use width: 50%;
c) Use max-width: 100%;
d) Use width: 100px;
Answer: a) Use width: 50vw;
Explanation: vw stands for viewport width, so 50vw sets the element’s width to 50% of the viewport’s width.
39. Which of the following properties is used to change the font of an element in CSS?
a) font-family
b) font-size
c) text-align
d) text-transform
Answer: a) font-family
Explanation: The font-family property sets the font of an element’s text.
40. What is the purpose of the text-align property in CSS?
a) To align the text vertically.
b) To align the text horizontally.
c) To change the color of the text.
d) To add spacing between the text characters.
Answer: b) To align the text horizontally.
Explanation: The text-align property is used to set the horizontal alignment of text, such as left, center, or right.
41. How do you apply a style to an HTML element with the ID header?
a) #header { }
b) .header { }
c) header { }
d) *header { }
Answer: a) #header { }
Explanation: The # symbol is used to select an element by its ID in CSS.
42. Which of the following CSS properties is used to set the spacing between words in text?
a) word-spacing
b) letter-spacing
c) line-height
d) text-indent
Answer: a) word-spacing
Explanation: The word-spacing property adjusts the space between words in a text.
43. Which of the following CSS properties can you use to change the background color of an element?
a) background-color
b) color
c) border-color
d) text-color
Answer: a) background-color
Explanation: The background-color property sets the background color of an element.
44. What does the z-index property do in CSS?
a) Controls the vertical position of an element.
b) Controls the stacking order of elements.
c) Sets the background color of an element.
d) Changes the font size of text.
Answer: b) Controls the stacking order of elements.
Explanation: The z-index property determines the stacking order of elements along the z-axis (front-to-back) when they overlap.
45. How do you hide an element from the page completely (without taking up any space)?
a) Use display: none;
b) Use visibility: hidden;
c) Use opacity: 0;
d) Use position: absolute;
Answer: a) Use display: none;
Explanation: display: none; removes the element from the page layout entirely, and it no longer occupies space.
46. How do you apply a style to all <h1> elements on a page in CSS?
a) h1 { }
b) .h1 { }
c) #h1 { }
d) *h1 { }
Answer: a) h1 { }
Explanation: The tag selector h1 is used to apply styles to all <h1> elements.
47. How do you make a responsive layout that adapts to the screen size in CSS?
a) Use @media queries.
b) Use float property.
c) Use flex property only.
d) Use max-width property only.
Answer: a) Use @media queries.
Explanation: @media queries allow different styles to be applied based on the screen size or device type, making the layout responsive.
48. Which property controls the amount of space between lines of text in CSS?
a) line-height
b) text-indent
c) letter-spacing
d) word-spacing
Answer: a) line-height
Explanation: The line-height property sets the amount of space between lines of text.
49. How do you create a rounded corner for an element in CSS?
a) Use border-radius
b) Use border-style
c) Use corner-radius
d) Use border-width
Answer: a) Use border-radius
Explanation: The border-radius property is used to create rounded corners for an element.
50. How do you make a link open in a new tab in HTML?
a) Use target="_blank"
b) Use target="_new"
c) Use target="_tab"
d) Use target="_self"
Answer: a) Use target="_blank"
Explanation: The target="_blank" attribute makes a link open in a new tab.
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