List group component in Bootsrap - Cheat Sheet & Quick Revision

Recall & Review

beginner

What is a list group in Bootstrap?

A list group in Bootstrap is a flexible and powerful component for displaying a series of content items in a vertical list with consistent spacing and styling.

beginner

How do you create a basic list group in Bootstrap?

Use a <ul> or <div> with the class list-group. Each item inside should have the class list-group-item.

beginner

How can you make a list group item active or highlighted?

Add the class active to the list-group-item you want to highlight. It changes the background and text color to show it is selected.

intermediate

What class do you add to make list group items clickable links?

Use <a> tags with the class list-group-item list-group-item-action. This makes the items interactive and keyboard accessible.

intermediate

How do you add badges or extra info to list group items?

Place a <span> with the class badge bg-primary rounded-pill inside the list-group-item. This shows a small colored label on the right side.

Which class is required on the container to create a Bootstrap list group?

A list-group

B list-item

C group-list

D list-container

The container must have the class list-group to apply Bootstrap's list group styles.

How do you make a list group item appear selected or active?

A Add class <code>selected</code>

B Add class <code>active</code>

C Add class <code>highlight</code>

D Add class <code>focus</code>

Adding the class active highlights the list group item as selected.

Which tag and classes make list group items clickable links?

A <code>&lt;button&gt;</code> with <code>list-group-item</code>

B <code>&lt;div&gt;</code> with <code>list-group-item-action</code>

C <code>&lt;a&gt;</code> with <code>list-group-item list-group-item-action</code>

D <code>&lt;span&gt;</code> with <code>list-group-item</code>

Using <a> tags with both list-group-item and list-group-item-action makes items clickable and accessible.

What class combination is used to add a badge to a list group item?

A badge-primary pill-rounded

B badge-pill bg-primary

C badge rounded bg-primary

D badge bg-primary rounded-pill

The correct classes are badge bg-primary rounded-pill to style badges properly.

Which HTML element is NOT typically used for list group items?

A <code>&lt;table&gt;</code>

B <code>&lt;a&gt;</code>

C <code>&lt;button&gt;</code>

D <code>&lt;li&gt;</code>

The <table> element is not used for list group items; list groups use <li>, <a>, or <button>.

Explain how to create a basic Bootstrap list group with three items, including one active item.

Think about the container and item classes needed.

Describe how to make list group items interactive links and add badges to them.

Focus on tags and classes for links and badges.

Practice

1. What is the main purpose of the Bootstrap list-group component?

easy

A. To organize and style a list of items cleanly

B. To create a navigation bar

C. To add buttons with icons

D. To display images in a grid

Solution

1. Step 1: Understand the role of list-group

   The list-group component is designed to group related items in a list format.

2. Step 2: Compare with other components

   Unlike navigation bars or grids, list-group focuses on listing items with consistent styling.

3. Final Answer:

   To organize and style a list of items cleanly -> Option A

4. Quick Check:

   List groups = styled item lists [OK]

Hint: Remember list groups are for clean lists, not nav or grids [OK]

Common Mistakes:

• Confusing list group with navigation bar
• Thinking it creates buttons or grids
• Mixing it with image display components

2. Which of the following is the correct way to start a Bootstrap list group in HTML?

easy

A.

B.

C.

D.

Solution

1. Step 1: Identify the container class for list groups

   Bootstrap requires the container to have the class list-group to apply styles.

2. Step 2: Choose the correct HTML element

   Commonly, <ul> or <div> with list-group is used; here <ul> with class list-group is correct.

3. Final Answer:

   <ul class="list-group"> -> Option C

4. Quick Check:

   Use <ul> with class list-group [OK]

Hint: Use <ul> or <div> with class list-group to start [OK]

Common Mistakes:

• Using wrong class names like list-item or group-list
• Using <ol> without correct class
• Using elements without the list-group class

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

<ul class="list-group">
  <li class="list-group-item active">Home</li>
  <li class="list-group-item">Profile</li>
  <li class="list-group-item disabled">Messages</li>
</ul>

medium

A. All items appear the same with no special styling

B. A list with 'Home' highlighted, 'Profile' normal, and 'Messages' greyed out and unclickable

C. Only 'Messages' is highlighted, others are normal

D. The list will not render because of invalid classes

Solution

1. Step 1: Understand the class effects

   active highlights the item, disabled greys out and disables interaction.

2. Step 2: Apply classes to list items

   'Home' is active (highlighted), 'Profile' normal, 'Messages' disabled (greyed and unclickable).

3. Final Answer:

   A list with 'Home' highlighted, 'Profile' normal, and 'Messages' greyed out and unclickable -> Option B

4. Quick Check:

   Active = highlight, Disabled = greyed out [OK]

Hint: Active highlights, disabled greys out list items [OK]

Common Mistakes:

• Thinking disabled items are clickable
• Assuming all items look the same
• Confusing active and disabled effects

4. Identify the error in this Bootstrap list group code:

<ul class="list-group">
  <li class="list-group-item">Item 1</li>
  <li class="list-group-item active">Item 2</li>
  <li class="list-group-item disabled">Item 3</li>
  <li class="list-group-item" disabled>Item 4</li>
</ul>

medium

A. The last <li> uses an invalid disabled attribute instead of class

B. The active class cannot be used on list items

C. The list-group-item class is missing on the second item

D. The ul element should not have the list-group class

Solution

1. Step 1: Check usage of disabled

   Bootstrap requires disabled as a class, not as an HTML attribute on <li>.

2. Step 2: Identify the incorrect line

   The last <li> uses disabled as an attribute, which is invalid and won't style properly.

3. Final Answer:

   The last <li> uses an invalid disabled attribute instead of class -> Option A

4. Quick Check:

   Use class="disabled", not disabled attribute [OK]

Hint: Use class="disabled" not disabled attribute on list items [OK]

Common Mistakes:

• Using disabled as an attribute instead of class
• Thinking active class is invalid
• Missing list-group-item class on items

5. You want a clickable list group where each item acts like a button and highlights on hover. Which is the correct Bootstrap structure?

hard

A. <div class="list-group">
<button class="list-group-item">Item 1</button>
<button class="list-group-item">Item 2</button>
</div>

B. <ul class="list-group">
<li class="list-group-item">Item 1</li>
<li class="list-group-item">Item 2</li>
</ul>

C. <ol class="list-group">
<li class="list-group-item-action">Item 1</li>
<li class="list-group-item-action">Item 2</li>
</ol>

D. <div class="list-group">
<a href="#" class="list-group-item list-group-item-action">Item 1</a>
<a href="#" class="list-group-item list-group-item-action">Item 2</a>
</div>

Solution

1. Step 1: Identify clickable list group items

   Bootstrap uses <a> tags with classes list-group-item and list-group-item-action for clickable items.

2. Step 2: Check other options

   <ul class="list-group"> <li class="list-group-item">Item 1</li> <li class="list-group-item">Item 2</li> </ul> uses non-clickable <li>, A misses list-group-item-action, D uses li without proper container and classes.

3. Final Answer:

   Div with <a> tags having list-group-item and list-group-item-action classes -> Option D

4. Quick Check:

   Clickable list items = <a> + list-group-item-action [OK]

Hint: Clickable list items use <a> with list-group-item-action class [OK]

Common Mistakes:

• Using <li> without action class for clickable items
• Missing list-group-item-action class
• Using buttons without proper classes