Display utilities in Bootsrap - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to make the element hidden on all screen sizes.

Bootsrap

<div class="[1]">This text is hidden.</div>

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

Ad-block

Bd-none

Cd-inline

Dd-flex

Attempts:

3 left

💡 Hint

Common Mistakes

Using d-block which shows the element.

Using d-inline which only changes display style but does not hide.

The d-none class hides the element on all screen sizes.

2fill in blank

medium

Complete the code to make the element visible only on medium and larger screens.

Bootsrap

<div class="[1]">Visible on medium and up.</div>

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

Ad-none d-md-block

Bd-block d-md-none

Cd-md-none

Dd-none d-sm-block

Attempts:

3 left

💡 Hint

Common Mistakes

Using d-block d-md-none which does the opposite.

Using d-none d-sm-block which shows on small screens, not medium.

The combination d-none d-md-block hides the element on small screens and shows it on medium and larger screens.

3fill in blank

hard

Fix the error in the code to make the element inline only on large screens.

Bootsrap

<span class="d-[1]-inline">Inline on large screens only.</span>

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

Alg

Bsm

Cmd

Dxl

Attempts:

3 left

💡 Hint

Common Mistakes

Using sm or md which apply to smaller screen sizes.

Using xl which applies only on extra large screens.

The class d-lg-inline makes the element inline only on large screens and up.

4fill in blank

hard

Fill both blanks to make the element hidden on small screens and flex on extra large screens.

Bootsrap

<div class="[1] [2]">Responsive display</div>

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

Ad-none

Bd-flex

Cd-xl-flex

Dd-sm-none

Attempts:

3 left

💡 Hint

Common Mistakes

Using d-none which hides on all screen sizes.

Using d-flex which shows flex on all screen sizes.

d-sm-none hides the element on small screens and smaller, and d-xl-flex shows it as flex on extra large screens.

5fill in blank

hard

Fill all three blanks to make the element block on small screens, inline on medium, and hidden on large screens.

Bootsrap

<div class="[1] [2] [3]">Multi-display</div>

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

Ad-block

Bd-md-inline

Cd-lg-none

Dd-sm-inline

Attempts:

3 left

💡 Hint

Common Mistakes

Using d-sm-inline which applies inline only on small screens, not medium.

Not hiding the element on large screens.

d-block shows block by default (small screens), d-md-inline changes to inline on medium screens, and d-lg-none hides on large screens.

Practice

1. What does the Bootstrap class d-none do to an element?

easy

A. It hides the element on all screen sizes.

B. It makes the element visible only on small screens.

C. It changes the element's color to none.

D. It disables the element's interaction.

Solution

1. Step 1: Understand the d-none class purpose

   The d-none class in Bootstrap sets the CSS property display: none; which hides the element completely.

2. Step 2: Confirm effect on all screen sizes

   Since no breakpoint is specified, d-none applies to all screen sizes, hiding the element everywhere.

3. Final Answer:

   It hides the element on all screen sizes. -> Option A

4. Quick Check:

   d-none = hide element always [OK]

Hint: Remember: d-none means display none everywhere [OK]

Common Mistakes:

• Thinking d-none only hides on small screens
• Confusing d-none with color or interaction changes
• Assuming it disables the element

2. Which of the following is the correct Bootstrap class to make an element visible only on medium and larger screens?

easy

A. d-none d-md-block

B. d-md-none

C. d-block d-md-none

D. d-sm-block d-md-none

Solution

1. Step 1: Understand breakpoint classes for visibility

   d-none hides the element on all screens, and d-md-block shows it as block starting from medium screens and up.

2. Step 2: Combine classes to show only on medium and larger

   Using d-none d-md-block hides the element on small and extra small screens, then shows it on medium and larger.

3. Final Answer:

   d-none d-md-block -> Option A

4. Quick Check:

   Hide all + show md+ = d-none d-md-block [OK]

Hint: Use d-none to hide, then d-md-block to show from md up [OK]

Common Mistakes:

• Using d-md-none which hides on medium screens
• Confusing d-block and d-none order
• Using wrong breakpoints like d-sm-block d-md-none

3. What will be the visible behavior of this element?

<div class="d-none d-lg-block">Hello</div>

medium

A. Visible on all screen sizes

B. Hidden on large screens and above

C. Visible only on large screens and above

D. Hidden on all screen sizes

Solution

1. Step 1: Analyze the classes d-none and d-lg-block

   d-none hides the element on all screen sizes by default. d-lg-block overrides this to show the element as block starting at large screens (lg) and above.

2. Step 2: Determine visibility on screen sizes

   From extra small to medium screens, the element is hidden. From large screens and up, it becomes visible as a block element.

3. Final Answer:

   Visible only on large screens and above -> Option C

4. Quick Check:

   d-none + d-lg-block = show lg+ only [OK]

Hint: d-none hides all, d-lg-block shows from large screens [OK]

Common Mistakes:

• Thinking it is visible on all screens
• Confusing d-lg-block as hiding on large screens
• Ignoring the effect of d-none

4. You want to hide an element only on small screens but it remains visible everywhere. Which Bootstrap class usage is incorrect?

medium

A. d-sm-none d-md-block

B. d-block d-sm-none

C. d-none d-md-block

D. d-none d-sm-block

Solution

1. Step 1: Understand the goal and class effects

   To hide only on small screens, the element should be visible by default and hidden on small screens only.

2. Step 2: Analyze each option's effect

   d-none d-sm-block hides the element on all screens by default, then shows it from small screens and up. This means it is hidden only on extra small screens, not small screens.

3. Final Answer:

   d-none d-sm-block -> Option D

4. Quick Check:

   Hide all then show sm+ hides xs only, not sm [OK]

Hint: Check which breakpoint hides vs shows carefully [OK]

Common Mistakes:

• Mixing up small (sm) and extra small (xs) breakpoints
• Using d-none without proper show class
• Assuming d-sm-block hides on small screens

5. You want a paragraph to be hidden on extra small and small screens, visible as block on medium and large screens, and inline on extra large screens. Which class set achieves this?

hard

A. d-none d-md-inline d-xl-block

B. d-none d-md-block d-xl-inline

C. d-none d-sm-block d-lg-inline

D. d-sm-none d-md-block d-lg-inline

Solution

1. Step 1: Break down the requirements by screen size

   Extra small (xs) and small (sm): hidden
   Medium (md) and large (lg): visible as block
   Extra large (xl): visible as inline

2. Step 2: Match classes to requirements

   d-none hides on all by default (xs and sm included). d-md-block shows block from medium and up (md, lg, xl). d-xl-inline overrides to inline only on extra large screens.

3. Step 3: Verify other options

   Other options either hide wrong breakpoints or use incorrect display types at breakpoints.

4. Final Answer:

   d-none d-md-block d-xl-inline -> Option B

5. Quick Check:

   Hide all, show block md+, inline xl = d-none d-md-block d-xl-inline [OK]

Hint: Use d-none to hide, then override with d-md-block and d-xl-inline [OK]

Common Mistakes:

• Using d-sm-none hides only small, not extra small
• Mixing inline and block classes at wrong breakpoints
• Forgetting to hide on extra small screens