Badge component in Bootsrap - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to create a simple badge with Bootstrap.

Bootsrap

<span class="badge bg-[1]">New</span>

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

Acontainer

Balert

Cbutton

Dprimary

Attempts:

3 left

💡 Hint

Common Mistakes

Using non-existent classes like 'alert' or 'button' for badge background.

Forgetting the 'bg-' prefix before the color name.

The class bg-primary applies the primary color background to the badge.

2fill in blank

medium

Complete the code to add a badge inside a button with Bootstrap.

Bootsrap

<button type="button" class="btn btn-[1]">Messages <span class="badge bg-[1]">4</span></button>

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

Afooter

Binfo

Cprimary

Ddanger

Attempts:

3 left

💡 Hint

Common Mistakes

Using unrelated classes like 'footer' which do not style buttons.

Mismatching button and badge colors.

Using btn-primary and bg-primary gives the button and badge a matching primary color.

3fill in blank

hard

Fix the error in the badge code to show a pill-shaped badge.

Bootsrap

<span class="badge rounded-[1] bg-success">99+</span>

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

Apill

Bsquare

Ccircle

Drounded

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'rounded' instead of 'rounded-pill' for pill shape.

Using invalid classes like 'circle' or 'square' which do not exist.

The class rounded-pill makes the badge pill-shaped with rounded edges.

4fill in blank

hard

Fill both blanks to create a badge with a light background and dark text.

Bootsrap

<span class="badge bg-[1] text-[2]">Light Badge</span>

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

Alight

Bdark

Cprimary

Dwhite

Attempts:

3 left

💡 Hint

Common Mistakes

Using text-white on a light background, making text hard to read.

Using bg-primary instead of bg-light for light background.

The bg-light class gives a light background, and text-dark ensures the text is visible with dark color.

5fill in blank

hard

Fill all three blanks to create a badge inside a button with a pill shape and warning color.

Bootsrap

<button type="button" class="btn btn-[1]">Alerts <span class="badge rounded-[2] bg-[3]">5</span></button>

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

Awarning

Bpill

Ddanger

Attempts:

3 left

💡 Hint

Common Mistakes

Using mismatched colors between button and badge.

Using rounded instead of rounded-pill for pill shape.

The button uses btn-warning for a warning color, the badge is pill-shaped with rounded-pill, and the badge background matches with bg-warning.

Practice

1. What is the main purpose of a Bootstrap badge component?

easy

A. To style form input fields

B. To create large banners for page headers

C. To add navigation menus

D. To highlight small pieces of information like counts or labels

Solution

1. Step 1: Understand the badge role

   Badges are used to show small bits of info such as counts or labels next to text or buttons.

2. Step 2: Compare options

   Options A, B, and C describe other Bootstrap components or uses, not badges.

3. Final Answer:

   To highlight small pieces of information like counts or labels -> Option D

4. Quick Check:

   Badge = small info highlight [OK]

Hint: Badges show small info like numbers or labels [OK]

Common Mistakes:

• Confusing badges with navigation or headers
• Thinking badges style large elements
• Using badges for form inputs

2. Which of the following is the correct syntax to create a Bootstrap badge with a primary color?

easy

A. New

B. New

C. New

D. New

Solution

1. Step 1: Check Bootstrap badge syntax

   Bootstrap badges use a span with class badge plus a background color class like bg-primary.

2. Step 2: Validate each option

   New uses correct tags and classes. Options A, B, and D use incorrect tags or class names.

3. Final Answer:

   <span class="badge bg-primary">New</span> -> Option C

4. Quick Check:

   Use span.badge.bg-primary [OK]

Hint: Use <span> with classes badge and bg-color [OK]

Common Mistakes:

• Using <div> instead of <span>
• Missing the 'badge' class
• Using wrong class names like badge-primary

3. What will be the visual result of this code?

<button type="button" class="btn btn-secondary">Messages <span class="badge bg-danger">5</span></button>

medium

A. A secondary button labeled 'Messages' with a red badge showing number 5

B. A red button labeled 'Messages' with a secondary badge showing number 5

C. A button labeled 'Messages' with no badge visible

D. A secondary button labeled 'Messages' with a blue badge showing number 5

Solution

1. Step 1: Analyze button and badge classes

   The button uses btn btn-secondary which styles it gray. The badge uses badge bg-danger which styles it red.

2. Step 2: Understand visual output

   The button text is 'Messages' and the badge with number 5 appears in red next to it.

3. Final Answer:

   A secondary button labeled 'Messages' with a red badge showing number 5 -> Option A

4. Quick Check:

   btn-secondary + badge bg-danger = gray button + red badge [OK]

Hint: bg-danger means red badge color [OK]

Common Mistakes:

• Confusing button and badge colors
• Expecting badge to be blue or missing
• Ignoring badge inside button

4. Identify the error in this badge code:

<span class="badge badge-primary">99</span>

medium

A. The span tag cannot be used for badges

B. The class 'badge-primary' is outdated; should use 'bg-primary' instead

C. The number 99 is too large for a badge

D. Missing closing tag for span

Solution

1. Step 1: Check Bootstrap badge color class

   In Bootstrap 5+, color classes for badges use bg-primary, not badge-primary.

2. Step 2: Validate other parts

   The span tag is correct, number size is fine, and the closing tag is present.

3. Final Answer:

   The class 'badge-primary' is outdated; should use 'bg-primary' instead -> Option B

4. Quick Check:

   Use bg-primary, not badge-primary [OK]

Hint: Use bg-primary for badge color, not badge-primary [OK]

Common Mistakes:

• Using old Bootstrap 4 class names
• Thinking span is invalid tag
• Assuming number size matters

5. You want to add a badge inside a navigation link that shows the number of unread notifications. Which is the best way to do this for accessibility and styling?

<a href="#" class="nav-link">Notifications <?></a>

What should replace <?>?

hard

A. <span class="badge bg-info" aria-label="unread notifications">3</span>

B. <div class="badge bg-info">3</div>

C. <span class="badge bg-info"><strong>3</strong></span>

D. <span class="badge bg-info" role="button">3</span>

Solution

1. Step 1: Choose correct tag and classes

   Badges should use span with badge and color class like bg-info.

2. Step 2: Add accessibility attribute

   Adding aria-label describes the badge meaning for screen readers, improving accessibility.

3. Final Answer:

   <span class="badge bg-info" aria-label="unread notifications">3</span> -> Option A

4. Quick Check:

   Use span.badge with aria-label for accessibility [OK]

Hint: Use aria-label on badge span for screen readers [OK]

Common Mistakes:

• Using div inside links (invalid HTML)
• Adding role=button unnecessarily
• Not adding aria-label for accessibility