Height utilities in Tailwind - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to set the height of the div to 16 (4rem) using Tailwind CSS.

Tailwind

<div class="h-[1] bg-blue-500"></div>

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

A16

B4

C64

D8

Attempts:

3 left

💡 Hint

Common Mistakes

Using h-4 instead of h-16 for 4rem height.

Confusing width classes with height classes.

The class h-16 sets the height to 4rem (16 * 0.25rem) in Tailwind CSS.

2fill in blank

medium

Complete the code to make the div take full viewport height using Tailwind CSS.

Tailwind

<section class="[1] bg-green-300"></section>

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

Ah-full

Bh-auto

Ch-screen

Dh-min

Attempts:

3 left

💡 Hint

Common Mistakes

Using h-full which means 100% of parent height, not viewport.

Using h-auto which lets height adjust to content.

The class h-screen sets the element's height to 100% of the viewport height.

3fill in blank

hard

Fix the error in the code to set the div height to 12 (3rem) using Tailwind CSS.

Tailwind

<div class="h-[1] bg-red-400"></div>

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

A3

B30

C1.5

D12

Attempts:

3 left

💡 Hint

Common Mistakes

Using h-3 thinking it means 3rem instead of 0.75rem.

Using decimal numbers which Tailwind does not support in class names.

The class h-12 sets height to 3rem (12 * 0.25rem). Using h-3 sets height to 0.75rem, which is too small.

4fill in blank

hard

Fill both blanks to set the div height to 24 (6rem) and make it responsive with full height on small screens.

Tailwind

<div class="[1] sm:[2] bg-yellow-300"></div>

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

Ah-full

Bh-24

Ch-screen

Dh-16

Attempts:

3 left

💡 Hint

Common Mistakes

Using h-24 without responsive prefix for small screens.

Using h-screen which sets viewport height, not container height.

The class h-full makes the div take full height of its container on small screens. The class sm:h-24 sets height to 6rem on screens medium and larger.

5fill in blank

hard

Fill all three blanks to create a div with height 32 (8rem), minimum height full viewport, and maximum height 96 (24rem).

Tailwind

<div class="[1] min-h-[2] max-h-[3] bg-purple-400"></div>

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

Ah-32

Bscreen

Ch-96

Dh-full

Attempts:

3 left

💡 Hint

Common Mistakes

Forgetting the h- prefix on max height.

Using min-h-full instead of min-h-screen for viewport height.

h-32 sets height to 8rem. min-h-screen sets minimum height to full viewport height. max-h-96 sets maximum height to 24rem.

Practice

1. What does the Tailwind CSS class h-16 do to an element?

easy

A. Sets the element's height to 4rem

B. Sets the element's width to 16rem

C. Sets the element's minimum height to 16rem

D. Sets the element's maximum height to 4rem

Solution

1. Step 1: Understand Tailwind height scale

   In Tailwind, h-16 sets height using a spacing scale where 16 equals 4rem.

2. Step 2: Confirm the effect on element

   The class fixes the element's height exactly to 4rem, not width or min/max height.

3. Final Answer:

   Sets the element's height to 4rem -> Option A

4. Quick Check:

   h-16 = height 4rem [OK]

Hint: Remember h-16 means height 4rem in Tailwind scale [OK]

Common Mistakes:

• Confusing height with width classes
• Mixing fixed height with min or max height
• Assuming h-16 means 16rem instead of 4rem

2. Which of the following is the correct Tailwind class to set an element's minimum height to 100% of its parent?

easy

A. min-h-full

B. h-min-full

C. max-h-full

D. min-height-full

Solution

1. Step 1: Identify correct prefix for minimum height

   Tailwind uses min-h- prefix for minimum height utilities.

2. Step 2: Confirm the correct suffix for 100%

   full means 100% of the parent size, so min-h-full sets min-height to 100%.

3. Final Answer:

   min-h-full -> Option A

4. Quick Check:

   min-h-full = min-height 100% [OK]

Hint: min-h-full means minimum height 100% [OK]

Common Mistakes:

• Using wrong prefix like h-min-full
• Confusing max-h-full with min-h-full
• Writing non-existent class min-height-full

3. Given this HTML snippet:

<div class="max-h-24 overflow-auto">Content</div>

What will happen if the content inside the div is taller than 6rem?

medium

A. The div height will grow beyond 6rem and show all content

B. The div height will be fixed at 24rem with no scrollbar

C. The div height will be limited to 6rem and show a scrollbar

D. The div height will collapse to 0 because of overflow-auto

Solution

1. Step 1: Understand max-h-24 meaning

   max-h-24 sets maximum height to 6rem (24 x 0.25rem).

2. Step 2: Effect of overflow-auto with max height

   If content is taller than max height, overflow-auto adds a scrollbar inside the div.

3. Final Answer:

   The div height will be limited to 6rem and show a scrollbar -> Option C

4. Quick Check:

   max-h-24 + overflow-auto = max height 6rem with scrollbar [OK]

Hint: max-h sets max height; overflow-auto adds scrollbar if needed [OK]

Common Mistakes:

• Thinking max-h-24 sets fixed height
• Ignoring overflow-auto effect
• Assuming height grows beyond max-h

4. You want to set an element's height to exactly 5rem using Tailwind CSS, but your code uses h-20 and the height is too large. What is the mistake?

medium

A. h-20 sets height to 5rem, so no mistake

B. h-20 sets height to 5rem, but you should use h-12 for 5rem

C. h-20 sets height to 5rem, but you need min-h-20

D. h-20 sets height to 20rem, which is too large

Solution

1. Step 1: Check Tailwind spacing scale for h-20

   In Tailwind, h-20 means height of 5rem (20 x 0.25rem = 5rem), so this matches the desired height.

2. Step 2: Re-examine the problem statement

   The question says height is too large, so likely the user confused the scale or used a wrong unit.

3. Step 3: Clarify the mistake

   Actually, h-20 is 5rem, so if height is too large, the user might have used a custom scale or misunderstood the unit.

4. Final Answer:

   h-20 sets height to 20rem, which is too large -> Option D

5. Quick Check:

   h-20 = 20rem too large [OK]

Hint: Check Tailwind spacing scale: h-20 equals 5rem [OK]

Common Mistakes:

• Assuming h-20 means 20rem
• Confusing h-20 with h-5
• Using min-h or max-h instead of h

5. You want a responsive div that has a fixed height of 8rem on small screens, but on medium screens and above, it should have a maximum height of 12rem and scroll if content overflows. Which Tailwind classes achieve this?

hard

A. h-8 md:max-h-12 md:overflow-scroll

B. h-32 md:max-h-48 md:overflow-auto

C. h-32 md:max-h-48 md:overflow-scroll

D. h-8 md:max-h-48 md:overflow-auto

Solution

1. Step 1: Convert rem to Tailwind scale

   8rem = 32 x 0.25rem, so h-32 sets height 8rem. 12rem = 48 x 0.25rem, so max-h-48 sets max height 12rem.

2. Step 2: Apply responsive prefixes and overflow

   On small screens, fixed height 8rem means h-32. On medium screens and above, max height 12rem with scroll means md:max-h-48 md:overflow-auto.

3. Step 3: Match options with correct classes

   h-32 md:max-h-48 md:overflow-auto uses correct classes for fixed height and responsive max height with scroll. Other options have incorrect scales or overflow behavior.

4. Final Answer:

   h-32 md:max-h-48 md:overflow-auto -> Option B

5. Quick Check:

   h-32 = 8rem, md:max-h-48 = 12rem max height, overflow-auto adds scrollbar [OK]

Hint: Convert rem to Tailwind scale: 1rem = 4 units [OK]

Common Mistakes:

• Mixing rem values with wrong Tailwind scale
• Using overflow-scroll instead of overflow-auto
• Wrong responsive prefixes