Drop shadow on irregular shapes in Tailwind - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to add a basic drop shadow to a div using Tailwind CSS.

Tailwind

<div class="bg-blue-500 p-6 rounded-lg [1]">
  Drop shadow box
</div>

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

Aborder-4

Bopacity-50

Ctext-center

Dshadow-lg

Attempts:

3 left

💡 Hint

Common Mistakes

Using border classes instead of shadow classes.

Using text alignment classes which don't affect shadows.

The shadow-lg class adds a large drop shadow to the element.

2fill in blank

medium

Complete the code to apply a drop shadow only on hover using Tailwind CSS.

Tailwind

<button class="bg-green-400 p-4 rounded [1]">
  Hover me
</button>

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

Ahover:shadow-md

Bfocus:shadow-md

Cshadow-md

Dactive:shadow-md

Attempts:

3 left

💡 Hint

Common Mistakes

Using shadow-md which applies shadow always.

Using focus:shadow-md which applies shadow on focus, not hover.

The hover:shadow-md class applies a medium drop shadow only when the button is hovered.

3fill in blank

hard

Fix the error in the code to add a drop shadow to an irregular shape with Tailwind CSS.

Tailwind

<div class="w-40 h-40 bg-purple-600 rounded-full [1]">
  Circle with shadow
</div>

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

Ashadow-none

Bshadow-outline

Cshadow-2xl

Dshadow-inner

Attempts:

3 left

💡 Hint

Common Mistakes

Using shadow-none which removes shadows.

Using shadow-inner which adds inner shadow, not drop shadow.

The shadow-2xl class adds a strong drop shadow suitable for irregular shapes like circles.

4fill in blank

hard

Fill both blanks to create a drop shadow on an irregular polygon shape using Tailwind CSS.

Tailwind

<div class="w-48 h-48 bg-red-500 [1] [2]">
  Polygon with shadow
</div>

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

A[clip-path:polygon(50%_0%,0%_100%,100%_100%)]

Bshadow-lg

Cshadow-md

Dcircle

Attempts:

3 left

💡 Hint

Common Mistakes

Using circle instead of polygon clip-path.

Using no shadow or too small shadow classes.

The [clip-path:polygon(50%_0%,0%_100%,100%_100%)] arbitrary class clips the div into a polygon shape, and shadow-lg adds a large drop shadow.

5fill in blank

hard

Fill all three blanks to create a custom drop shadow on an irregular shape with Tailwind CSS.

Tailwind

<div class="w-56 h-56 bg-yellow-400 rounded-[1] shadow-[2] [3]">
  Custom shadow shape
</div>

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

Axl

Chover:shadow-2xl

Dmd

Attempts:

3 left

💡 Hint

Common Mistakes

Using small rounding or shadow sizes.

Not adding hover effect for shadow.

The rounded-xl class rounds corners nicely, shadow-xl adds a large shadow, and hover:shadow-2xl makes the shadow bigger on hover.

Practice

1. What is the main purpose of using a drop shadow on irregular shapes in Tailwind CSS?

easy

A. To add depth and make the shape stand out visually

B. To change the shape's color

C. To make the shape larger

D. To remove the shape's border

Solution

1. Step 1: Understand drop shadow effect

   Drop shadows create a shadow behind an element, giving it a sense of depth.

2. Step 2: Apply to irregular shapes

   Using drop shadows on irregular shapes helps them visually pop from the background.

3. Final Answer:

   To add depth and make the shape stand out visually -> Option A

4. Quick Check:

   Drop shadow purpose = add depth [OK]

Hint: Drop shadows make shapes look lifted and clear [OK]

Common Mistakes:

• Thinking drop shadows change color
• Confusing drop shadows with resizing
• Assuming drop shadows remove borders

2. Which Tailwind CSS class correctly applies a custom drop shadow with a blur radius of 5px and offset of 3px 3px?

easy

A. drop-shadow-3-3-5

B. shadow-3px-3px-5px

C. shadow-custom(3px,3px,5px)

D. shadow-[drop-shadow(3px_3px_5px_rgba(0,0,0,0.5))]

Solution

1. Step 1: Recognize Tailwind custom shadow syntax

   Tailwind uses square brackets for custom CSS values, e.g., shadow-[drop-shadow(...)]

2. Step 2: Match the correct CSS drop-shadow format

   The correct CSS function is drop-shadow(offsetX offsetY blurRadius color), here 3px 3px 5px rgba(0,0,0,0.5)

3. Final Answer:

   shadow-[drop-shadow(3px_3px_5px_rgba(0,0,0,0.5))] -> Option D

4. Quick Check:

   Custom drop shadow syntax = shadow-[drop-shadow(...)] [OK]

Hint: Use square brackets with drop-shadow(...) inside shadow- class [OK]

Common Mistakes:

• Missing square brackets for custom values
• Using invalid class names without brackets
• Confusing drop-shadow with shadow utilities

3. Given this HTML and Tailwind CSS snippet:

<div class="w-40 h-40 bg-blue-500 clip-path-[polygon(50%_0%,100%_50%,50%_100%,0%_50%)] shadow-[drop-shadow(4px_4px_6px_rgba(0,0,0,0.4))]"></div>

What will you see rendered in the browser?

medium

A. A blue square with no shadow

B. A blue diamond shape with a soft shadow offset to bottom-right

C. A blue circle with a sharp shadow

D. A blue triangle with a shadow on top-left

Solution

1. Step 1: Analyze clip-path polygon points

   The polygon points create a diamond shape by connecting top, right, bottom, and left midpoints.

2. Step 2: Understand drop shadow parameters

   The drop shadow is offset 4px right and 4px down with a 6px blur and semi-transparent black color, creating a soft shadow bottom-right.

3. Final Answer:

   A blue diamond shape with a soft shadow offset to bottom-right -> Option B

4. Quick Check:

   clip-path diamond + drop shadow offset = diamond with shadow [OK]

Hint: Polygon points define shape; drop-shadow offsets shadow direction [OK]

Common Mistakes:

• Ignoring clip-path shape and expecting a square
• Confusing shadow offset direction
• Assuming circle shape from polygon

4. You wrote this Tailwind class for an irregular shape shadow:
shadow-[drop-shadow(5px 5px 10px rgba(0,0,0,0.3))]
But the shadow does not appear. What is the likely issue?

medium

A. Spaces inside square brackets should be replaced with underscores

B. The rgba color is invalid

C. Drop shadow does not work with clip-path

D. The shadow class must be placed on a parent element

Solution

1. Step 1: Check Tailwind custom class syntax

   Tailwind requires no spaces inside square brackets for custom values; spaces must be replaced with underscores.

2. Step 2: Confirm correct syntax for drop-shadow

   Correct syntax is shadow-[drop-shadow(5px_5px_10px_rgba(0,0,0,0.3))] with underscores instead of spaces.

3. Final Answer:

   Spaces inside square brackets should be replaced with underscores -> Option A

4. Quick Check:

   Custom class spaces = underscores [OK]

Hint: Replace spaces with underscores inside custom bracket classes [OK]

Common Mistakes:

• Leaving spaces inside square brackets
• Assuming rgba color is wrong
• Thinking drop shadow can't be used with clip-path

5. You want to create a star shape with a drop shadow using Tailwind CSS. Which combination of classes correctly applies a star clip-path and a subtle drop shadow offset to the bottom-right?

hard

A. clip-path-star shadow-[drop-shadow(4px_4px_10px_rgba(0,0,0,0.5))]

B. clip-star shadow-drop(2px_2px_4px_rgba(0,0,0,0.25))

C. clip-path-[polygon(50%_0%,61%_35%,98%_35%,68%_57%,79%_91%,50%_70%,21%_91%,32%_57%,2%_35%,39%_35%)] shadow-[drop-shadow(2px_2px_4px_rgba(0,0,0,0.25))]

D. clip-polygon-star shadow-[drop-shadow(0_0_0_rgba(0,0,0,0))]

Solution

1. Step 1: Identify correct clip-path polygon for star

   The polygon points in clip-path-[polygon(50%_0%,61%_35%,98%_35%,68%_57%,79%_91%,50%_70%,21%_91%,32%_57%,2%_35%,39%_35%)] shadow-[drop-shadow(2px_2px_4px_rgba(0,0,0,0.25))] define a star shape using percentages and underscores for spaces.

2. Step 2: Check drop shadow syntax and subtlety

   clip-path-[polygon(50%_0%,61%_35%,98%_35%,68%_57%,79%_91%,50%_70%,21%_91%,32%_57%,2%_35%,39%_35%)] shadow-[drop-shadow(2px_2px_4px_rgba(0,0,0,0.25))] uses shadow-[drop-shadow(2px_2px_4px_rgba(0,0,0,0.25))], a subtle shadow offset bottom-right with correct syntax.

3. Final Answer:

   clip-path-polygon star with subtle drop shadow using underscores -> Option C

4. Quick Check:

   Star shape + correct drop shadow syntax = clip-path-[polygon(50%_0%,61%_35%,98%_35%,68%_57%,79%_91%,50%_70%,21%_91%,32%_57%,2%_35%,39%_35%)] shadow-[drop-shadow(2px_2px_4px_rgba(0,0,0,0.25))] [OK]

Hint: Use polygon points with underscores and subtle rgba shadow [OK]

Common Mistakes:

• Using invalid class names like clip-star
• Incorrect drop shadow syntax without brackets
• No shadow or zero offset shadow