Display property in CSS - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to make the element a block-level element.

CSS

div {
  display: [1];
}

Drag options to blanks, or click blank then click option'

Ablock

Binline

Cnone

Dflex

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'inline' which does not make the element block-level.

Using 'none' which hides the element.

The block value makes the element a block-level element, which takes the full width available.

2fill in blank

medium

Complete the code to hide the element from the page.

CSS

.hidden {
  display: [1];
}

Drag options to blanks, or click blank then click option'

Ablock

Binline

Cnone

Dflex

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'block' which shows the element.

Using 'inline' which shows the element inline.

The none value hides the element completely, removing it from the layout.

3fill in blank

hard

Fix the error in the code to make the container a flex container.

CSS

.container {
  display: [1];
  justify-content: center;
}

Drag options to blanks, or click blank then click option'

Aflex

Binline

Cgrid

Dblock

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'block' which does not enable flexbox.

Using 'inline' which is not a flex container.

The flex value makes the container a flex container, enabling flexbox layout properties like justify-content.

4fill in blank

hard

Fill both blanks to create a grid container with two columns.

CSS

.grid-container {
  display: [1];
  grid-template-columns: repeat([2], 1fr);
}

Drag options to blanks, or click blank then click option'

Agrid

Bflex

C2

D3

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'flex' instead of 'grid' for display.

Setting the number of columns to 3 instead of 2.

Setting display to grid creates a grid container. Using repeat(2, 1fr) creates two equal columns.

5fill in blank

hard

Fill all three blanks to create a flex container that centers items horizontally and vertically.

CSS

.centered-flex {
  display: [1];
  justify-content: [2];
  align-items: [3];
}

Drag options to blanks, or click blank then click option'

Ablock

Bcenter

Cflex

Dflex-start

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'block' instead of 'flex' for display.

Using 'flex-start' instead of 'center' for alignment.

Setting display to flex creates a flex container. Using justify-content: center and align-items: center centers items horizontally and vertically.

Practice

1. What does the CSS display: none; property do to an element on a webpage?

easy

A. It hides the element and removes it from the page layout.

B. It makes the element visible but transparent.

C. It changes the element to a block-level element.

D. It makes the element inline without line breaks.

Solution

1. Step 1: Understand the effect of display: none;

   This property hides the element completely and removes it from the page layout, so it takes no space.

2. Step 2: Compare with other display values

   Unlike visibility: hidden; which hides but keeps space, display: none; removes the element entirely.

3. Final Answer:

   It hides the element and removes it from the page layout. -> Option A

4. Quick Check:

   display: none; = hidden and no space [OK]

Hint: None means hidden and no space taken [OK]

Common Mistakes:

• Confusing with visibility: hidden
• Thinking it only makes element invisible but keeps space
• Mixing with display: inline or block

2. Which of the following is the correct CSS syntax to make an element a flex container?

easy

A. display-flex: true;

B. display = flex;

C. display: flex;

D. flex-display: block;

Solution

1. Step 1: Recall correct CSS property syntax

   CSS properties use a colon : to assign values, not equals =.

2. Step 2: Identify the correct property and value

   The property is display and the value to create a flex container is flex.

3. Final Answer:

   display: flex; -> Option C

4. Quick Check:

   Correct CSS syntax uses colon and display: flex; [OK]

Hint: Use colon, not equals, for CSS properties [OK]

Common Mistakes:

• Using equals sign instead of colon
• Incorrect property names like display-flex
• Adding extra words like true

3. Given this HTML and CSS, what will be the visible layout of the items?

<div class='container'>
  <span>A</span>
  <span>B</span>
  <span>C</span>
</div>

.container {
  display: flex;
  flex-direction: column;
}

medium

A. The items A, B, C appear as inline text separated by spaces.

B. The items A, B, C appear side by side horizontally.

C. The items A, B, C are hidden and not visible.

D. The items A, B, C appear stacked vertically in a column.

Solution

1. Step 1: Understand display: flex; with flex-direction: column;

   Flex container arranges children in a flexible box. The column direction stacks items vertically.

2. Step 2: Predict the layout of the spans

   Each <span> will appear one below the other in a vertical column.

3. Final Answer:

   The items A, B, C appear stacked vertically in a column. -> Option D

4. Quick Check:

   flex-direction: column; stacks vertically [OK]

Hint: Flex column stacks items vertically [OK]

Common Mistakes:

• Assuming flex always arranges horizontally
• Confusing inline elements with flex behavior
• Ignoring flex-direction property

4. You want to hide a paragraph but keep its space on the page. Which CSS property and value should you use? The following code does not work as expected:

p {
  display: none;
}

What is the correct fix?

medium

A. Use display: inline; to hide the paragraph

B. Change display: none; to visibility: hidden;

C. Add opacity: 0; instead of display

D. Change display: none; to display: block;

Solution

1. Step 1: Understand difference between display: none; and visibility: hidden;

   display: none; removes element and space, visibility: hidden; hides element but keeps space.

2. Step 2: Apply the correct property to keep space

   Use visibility: hidden; to hide content but preserve layout space.

3. Final Answer:

   Change display: none; to visibility: hidden; -> Option B

4. Quick Check:

   Keep space by using visibility: hidden; [OK]

Hint: Use visibility hidden to keep space but hide [OK]

Common Mistakes:

• Using display none and expecting space to remain
• Using opacity 0 but element still clickable
• Confusing display inline with hiding

5. You have a navigation bar with list items. You want the list items to appear horizontally with equal spacing and be centered. Which CSS display property and layout method should you use?

hard

A. Use display: flex; on the container with justify-content: space-around;.

B. Use display: block; on list items and text-align: center; on the container.

C. Use display: inline; on the container and margin: auto; on list items.

D. Use display: grid; on list items with grid-template-columns: repeat(3, 1fr);.

Solution

1. Step 1: Identify the container and desired layout

   The container holds list items that should be horizontal, spaced equally, and centered.

2. Step 2: Choose display and alignment properties

   display: flex; on container creates a flexible row layout. justify-content: space-around; spaces items evenly with space around them.

3. Final Answer:

   Use display: flex; on the container with justify-content: space-around;. -> Option A

4. Quick Check:

   Flex + justify-content space-around = horizontal equal spacing [OK]

Hint: Flex container with justify-content spaces items evenly [OK]

Common Mistakes:

• Applying display properties to wrong elements
• Using block display which stacks vertically
• Confusing inline display with container layout