Justify content (main axis) in Tailwind - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to center items horizontally using Tailwind CSS.

Tailwind

<div class="flex [1]">
  <div>Item 1</div>
  <div>Item 2</div>
</div>

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

Ajustify-center

Bitems-center

Ccontent-center

Dalign-center

Attempts:

3 left

💡 Hint

Common Mistakes

Using items-center which aligns items vertically (cross axis).

Using content-center which aligns lines, not items.

The justify-center class centers items along the main axis (horizontal in a row flex container).

2fill in blank

medium

Complete the code to space items evenly with equal space around them on the main axis.

Tailwind

<div class="flex [1]">
  <div>Box 1</div>
  <div>Box 2</div>
  <div>Box 3</div>
</div>

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

Ajustify-between

Bjustify-evenly

Cjustify-start

Djustify-around

Attempts:

3 left

💡 Hint

Common Mistakes

Using justify-between which adds space only between items, not around.

Using justify-evenly which spaces items evenly but differently than around.

The justify-around class adds equal space around each item on the main axis.

3fill in blank

hard

Fix the error in the code to align items to the end of the main axis.

Tailwind

<div class="flex [1]">
  <div>Left</div>
  <div>Right</div>
</div>

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

Ajustify-right

Bjustify-flex-end

Cjustify-end

Djustify-left

Attempts:

3 left

💡 Hint

Common Mistakes

Using justify-left or justify-right which are not valid Tailwind classes.

Using justify-flex-end which is not a Tailwind class.

The correct Tailwind class to align items to the end on the main axis is justify-end.

4fill in blank

hard

Fill both blanks to create a flex container that spaces items evenly and centers them vertically.

Tailwind

<div class="flex [1] [2]">
  <div>One</div>
  <div>Two</div>
  <div>Three</div>
</div>

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

Ajustify-evenly

Bitems-center

Cjustify-center

Ditems-start

Attempts:

3 left

💡 Hint

Common Mistakes

Using justify-center which centers items but does not space them evenly.

Using items-start which aligns items to the top instead of centering.

justify-evenly spaces items evenly on the main axis, and items-center centers items on the cross axis (vertical).

5fill in blank

hard

Fill all three blanks to create a flex container that aligns items to the start horizontally, centers them vertically, and wraps items to the next line if needed.

Tailwind

<div class="flex [1] [2] [3]">
  <div>Alpha</div>
  <div>Beta</div>
  <div>Gamma</div>
  <div>Delta</div>
</div>

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

Ajustify-start

Bitems-center

Cflex-wrap

Djustify-end

Attempts:

3 left

💡 Hint

Common Mistakes

Using justify-end which aligns items to the right.

Forgetting flex-wrap so items overflow instead of wrapping.

justify-start aligns items to the start horizontally, items-center centers them vertically, and flex-wrap allows items to wrap to the next line.

Practice

1. What does the Tailwind class justify-center do in a flex container?

easy

A. Centers items horizontally along the main axis

B. Aligns items to the start vertically

C. Distributes items evenly with space around

D. Stacks items vertically in a column

Solution

1. Step 1: Understand the main axis in flexbox

   The main axis is horizontal by default in a flex container with flex-row.

2. Step 2: Effect of justify-center

   This class centers all flex items horizontally along the main axis.

3. Final Answer:

   Centers items horizontally along the main axis -> Option A

4. Quick Check:

   justify-center = center horizontally [OK]

Hint: Justify content controls horizontal alignment in flex row [OK]

Common Mistakes:

• Confusing justify with align items
• Thinking justify-center aligns vertically
• Mixing justify-between with justify-center

2. Which Tailwind class correctly justifies items to have equal space between them horizontally?

easy

A. justify-around

B. justify-end

C. justify-center

D. justify-between

Solution

1. Step 1: Recall the meaning of justify-between

   The class justify-between places equal space between items, but no space at the ends.

2. Step 2: Compare with other options

   justify-around adds space around items, justify-center centers them, and justify-end aligns to the right.

3. Final Answer:

   justify-between -> Option D

4. Quick Check:

   Equal space between items = justify-between [OK]

Hint: Between means space only between items, not edges [OK]

Common Mistakes:

• Choosing justify-around instead of justify-between
• Confusing justify-end with justify-between
• Using justify-center for spacing

3. Given this HTML snippet:

<div class="flex justify-end">
  <div>Item 1</div>
  <div>Item 2</div>
</div>

Where will the items appear inside the container?

medium

A. Items aligned to the right side

B. Items aligned to the left side

C. Items centered horizontally

D. Items spaced evenly with gaps

Solution

1. Step 1: Identify the flex container and class

   The container uses flex and justify-end, so it is a flex row with items justified to the end.

2. Step 2: Understand justify-end effect

   justify-end pushes all items to the right side (end) of the container horizontally.

3. Final Answer:

   Items aligned to the right side -> Option A

4. Quick Check:

   justify-end = right align items [OK]

Hint: End means right side in flex row by default [OK]

Common Mistakes:

• Thinking justify-end centers items
• Confusing justify-end with justify-start
• Assuming justify-end spaces items evenly

4. This code snippet does not space items as expected:

<div class="flex justify-center">
  <div>A</div>
  <div>B</div>
  <div>C</div>
</div>

What is the likely mistake?

medium

A. Missing flex-row class

B. Using justify-center instead of justify-between

C. Items need inline-block class

D. Should use justify-end for spacing

Solution

1. Step 1: Analyze the class used

   The container uses justify-center, which centers items but does not add space between them.

2. Step 2: Correct class for spacing

   To add equal space between items, justify-between should be used instead.

3. Final Answer:

   Using justify-center instead of justify-between -> Option B

4. Quick Check:

   Centering ≠ spacing between items [OK]

Hint: Use justify-between for spacing, not justify-center [OK]

Common Mistakes:

• Confusing justify-center with justify-between
• Adding unnecessary classes like inline-block
• Thinking flex-row is missing when flex defaults to row

5. You want a navigation bar with 4 links spaced evenly across the width, but with extra space at the edges. Which Tailwind class should you use on the flex container?

hard

A. justify-center

B. justify-between

C. justify-around

D. justify-start

Solution

1. Step 1: Understand spacing requirements

   The requirement is equal spacing between items and extra space at the container edges.

2. Step 2: Match with Tailwind classes

   justify-around adds equal space around each item, including edges, unlike justify-between which has no edge space.

3. Final Answer:

   justify-around -> Option C

4. Quick Check:

   Space around items and edges = justify-around [OK]

Hint: Around means space on edges and between items [OK]

Common Mistakes:

• Choosing justify-between which lacks edge space
• Using justify-center which centers items only
• Assuming justify-start spaces items evenly