Bordered and borderless tables in Bootsrap - Practice Problems & Coding Challenges

Challenge - 5 Problems

❓ rendering

intermediate

What does this Bootstrap table look like?

Given the following HTML code using Bootstrap classes, what visual style will the table have when rendered in a browser?

Bootsrap

<table class="table table-bordered">
  <thead>
    <tr><th>Name</th><th>Age</th></tr>
  </thead>
  <tbody>
    <tr><td>Alice</td><td>30</td></tr>
    <tr><td>Bob</td><td>25</td></tr>
  </tbody>
</table>

A The table has borders around each cell and the entire table.

B The table has no borders at all, just plain text.

C The table has only horizontal lines separating rows, no vertical borders.

D The table has striped rows with alternating background colors but no borders.

💡 Hint

The class 'table-bordered' adds borders around table cells.

The Bootstrap class 'table-bordered' adds borders around every cell and the table itself, making the table fully bordered.

🧠 Conceptual

intermediate

Which Bootstrap class removes all borders from a table?

You want a table with no visible borders or lines between cells. Which Bootstrap class should you add to the table element?

A table-bordered

B table-striped

C table-borderless

D table-hover

💡 Hint

Look for a class name that suggests 'no borders'.

The 'table-borderless' class removes all borders from the table cells, making the table appear borderless.

📝 Syntax

advanced

Identify the error in this Bootstrap table code

What error will this code cause when rendered in a browser?

Bootsrap

<table class="table table-borderless">
  <thead>
    <tr><th>Name</th><th>Age</th></tr>
  </thead>
  <tbody>
    <tr><td>John</td><td>40</td></tr>
  </tbody>
</table>

A The table will render normally with no errors.

B The table header 'Name' cell is missing a closing </th> tag, causing rendering issues.

C The table body row has mismatched <td> tags causing a syntax error.

D The class 'table-borderless' is invalid and will cause a CSS error.

💡 Hint

Check if all HTML tags are properly closed.

The for 'Name' is missing its closing tag , which can cause the browser to render the header incorrectly or merge cells unexpectedly.

❓ selector

advanced

Which CSS selector targets only borderless tables in Bootstrap?

You want to write custom CSS that only applies to Bootstrap tables without borders. Which selector correctly targets these tables?

A table.table-striped

B table.table-bordered

C .table-borderless > tbody > tr > td

D table.table-borderless

💡 Hint

Look for the class that means borderless and select the table element.

The selector 'table.table-borderless' targets elements with the class 'table-borderless', which are borderless tables in Bootstrap.

❓ accessibility

expert

How to improve accessibility for a borderless Bootstrap table?

Borderless tables can be harder to read for some users. Which approach best improves accessibility while keeping the table borderless?

A Add <caption> describing the table and use <th scope="col"> for headers.

B Add visible borders using CSS to all <td> cells.

C Remove all table headers and use only <td> cells for simplicity.

D Use only <div> elements styled as tables instead of <table>.

💡 Hint

Think about semantic HTML elements that help screen readers.

Adding a

and proper

headers improves screen reader navigation and understanding, which is important especially when visual borders are missing. Practice (1/5) 1. What does the Bootstrap class table-bordered do to a table? easy A. Changes the table background color B. Removes all borders from the table C. Adds borders around all table cells D. Makes the table text bold Solution Step 1: Understand the purpose of table-bordered This class adds visible borders around each cell in the table to separate data clearly. Step 2: Compare with other classes Unlike table-borderless which removes borders, table-bordered adds them for clarity. Final Answer: Adds borders around all table cells -> Option C Quick Check: table-bordered means borders added [OK] Hint: Borders mean table-bordered, no borders mean table-borderless [OK] Common Mistakes: Confusing table-bordered with background color changes Thinking it removes borders instead of adding Assuming it changes text style 2. Which is the correct way to make a Bootstrap table borderless? easy A. <table class='table table-borderless'> B. <table class='borderless-table'> C. <table class='table borderless'> D. <table class='table table-bordered'> Solution Step 1: Recall Bootstrap borderless table class The correct class to remove borders is table-borderless used alongside table. Step 2: Check syntax correctness <table class='table table-borderless'> uses class='table table-borderless', which is the proper Bootstrap syntax. Final Answer: <table class='table table-borderless'> -> Option A Quick Check: Borderless table uses table-borderless [OK] Hint: Use table-borderless with table class for no borders [OK] Common Mistakes: Using only borderless without table Confusing table-bordered with borderless Misspelling the class name 3. What will be the visual difference between these two tables? <table class='table table-bordered'>...</table> and <table class='table table-borderless'>...</table> medium A. The first table has borders; the second has no borders B. Both tables will have thick borders around cells C. Both tables will have no borders D. The second table will have colored borders Solution Step 1: Understand table-bordered effect This class adds visible borders around all table cells. Step 2: Understand table-borderless effect This class removes all borders, making the table look clean without lines. Final Answer: The first table has borders; the second has no borders -> Option A Quick Check: Bordered vs borderless means borders vs no borders [OK] Hint: Bordered means lines; borderless means no lines [OK] Common Mistakes: Assuming borderless still shows borders Thinking both tables look the same Confusing border color with border presence 4. You wrote this code but the table still shows borders: <table class='table borderless'> <tr><td>Data</td></tr> </table> What is the error? medium A. Table tag is missing closing tag B. Missing table-borderless class; used borderless instead C. You need to add table-bordered to remove borders D. The tr tag is incorrect Solution Step 1: Check class names for borderless table The correct class to remove borders is table-borderless, not just borderless. Step 2: Verify HTML structure The table tag is properly closed and tr is correct, so no errors there. Final Answer: Missing table-borderless class; used borderless instead -> Option B Quick Check: Use exact Bootstrap class table-borderless [OK] Hint: Use full class table-borderless, not partial names [OK] Common Mistakes: Using incomplete or wrong class names Confusing table-bordered with borderless Ignoring proper closing tags 5. You want a table with borders only around the entire table but no borders between cells. Which Bootstrap classes should you use? hard A. table table-bordered B. table table-borderless C. border border-1 D. table border Solution Step 1: Understand Bootstrap border classes table-bordered adds borders around all cells, not just the table. Step 2: Use border on table only Bootstrap's border class adds border around the element itself. Combined with table, it provides table styling with border only around the table and no cell borders. Step 3: Why other options fail Options B and D add or remove all cell borders. border border-1 adds border but lacks table styling. table border is correct. Final Answer: table border -> Option D Quick Check: Border on table only needs table border [OK] Hint: Use table border for outer table border only [OK] Common Mistakes: Assuming table-bordered only borders table edges Omitting the table class and using only border utilities Confusing cell borders with table border Recommended Ready to prove it? Pass the test and this pattern moves unknown strong while earning +1 Grip toward your certificate. 10 questions~5 mineasy hard

Practice

1. What does the Bootstrap class table-bordered do to a table?

easy

A. Changes the table background color

B. Removes all borders from the table

C. Adds borders around all table cells

D. Makes the table text bold

Solution

1. Step 1: Understand the purpose of table-bordered

   This class adds visible borders around each cell in the table to separate data clearly.

2. Step 2: Compare with other classes

   Unlike table-borderless which removes borders, table-bordered adds them for clarity.

3. Final Answer:

   Adds borders around all table cells -> Option C

4. Quick Check:

   table-bordered means borders added [OK]

Hint: Borders mean table-bordered, no borders mean table-borderless [OK]

Common Mistakes:

• Confusing table-bordered with background color changes
• Thinking it removes borders instead of adding
• Assuming it changes text style

2. Which is the correct way to make a Bootstrap table borderless?

easy

A. <table class='table table-borderless'>

B. <table class='borderless-table'>

C. <table class='table borderless'>

D. <table class='table table-bordered'>

Solution

1. Step 1: Recall Bootstrap borderless table class

   The correct class to remove borders is table-borderless used alongside table.

2. Step 2: Check syntax correctness

   <table class='table table-borderless'> uses class='table table-borderless', which is the proper Bootstrap syntax.

3. Final Answer:

   <table class='table table-borderless'> -> Option A

4. Quick Check:

   Borderless table uses table-borderless [OK]

Hint: Use table-borderless with table class for no borders [OK]

Common Mistakes:

• Using only borderless without table
• Confusing table-bordered with borderless
• Misspelling the class name

3. What will be the visual difference between these two tables?

<table class='table table-bordered'>...</table>
and
<table class='table table-borderless'>...</table>

medium

A. The first table has borders; the second has no borders

B. Both tables will have thick borders around cells

C. Both tables will have no borders

D. The second table will have colored borders

Solution

1. Step 1: Understand table-bordered effect

   This class adds visible borders around all table cells.

2. Step 2: Understand table-borderless effect

   This class removes all borders, making the table look clean without lines.

3. Final Answer:

   The first table has borders; the second has no borders -> Option A

4. Quick Check:

   Bordered vs borderless means borders vs no borders [OK]

Hint: Bordered means lines; borderless means no lines [OK]

Common Mistakes:

• Assuming borderless still shows borders
• Thinking both tables look the same
• Confusing border color with border presence

4. You wrote this code but the table still shows borders:

<table class='table borderless'>
  <tr><td>Data</td></tr>
</table>

What is the error?

medium

A. Table tag is missing closing tag

B. Missing table-borderless class; used borderless instead

C. You need to add table-bordered to remove borders

D. The tr tag is incorrect

Solution

1. Step 1: Check class names for borderless table

   The correct class to remove borders is table-borderless, not just borderless.

2. Step 2: Verify HTML structure

   The table tag is properly closed and tr is correct, so no errors there.

3. Final Answer:

   Missing table-borderless class; used borderless instead -> Option B

4. Quick Check:

   Use exact Bootstrap class table-borderless [OK]

Hint: Use full class table-borderless, not partial names [OK]

Common Mistakes:

• Using incomplete or wrong class names
• Confusing table-bordered with borderless
• Ignoring proper closing tags

5. You want a table with borders only around the entire table but no borders between cells. Which Bootstrap classes should you use?

hard

A. table table-bordered

B. table table-borderless

C. border border-1

D. table border

Solution

1. Step 1: Understand Bootstrap border classes

   table-bordered adds borders around all cells, not just the table.

2. Step 2: Use border on table only

   Bootstrap's border class adds border around the element itself. Combined with table, it provides table styling with border only around the table and no cell borders.

3. Step 3: Why other options fail

   Options B and D add or remove all cell borders. border border-1 adds border but lacks table styling. table border is correct.

4. Final Answer:

   table border -> Option D

5. Quick Check:

   Border on table only needs table border [OK]

Hint: Use table border for outer table border only [OK]

Common Mistakes:

• Assuming table-bordered only borders table edges
• Omitting the table class and using only border utilities
• Confusing cell borders with table border