Text decoration and underline in Tailwind - Mini Project: Build & Apply

Text Decoration and Underline with Tailwind CSS

📖 Scenario: You are creating a simple webpage section that highlights important text using underlines and other text decorations. This is common in websites to emphasize links or key phrases.

🎯 Goal: Build a small HTML snippet styled with Tailwind CSS that shows a heading and a paragraph. The heading should have an underline, and the paragraph should have a line-through decoration. This will help you learn how to use Tailwind's text decoration utilities.

📋 What You'll Learn

Use Tailwind CSS classes to add text decorations

Underline the heading text using Tailwind

Add a line-through decoration to the paragraph text

Use semantic HTML elements:

for heading and

for paragraph

Ensure the code is valid HTML5 and uses Tailwind classes correctly

💡 Why This Matters

🌍 Real World

Websites often use text decorations to highlight links, warnings, or important information. Learning to apply these styles with Tailwind CSS helps create visually clear and accessible content.

💼 Career

Front-end developers frequently style text for readability and emphasis. Knowing Tailwind CSS text decoration utilities is valuable for quickly building consistent and responsive UI designs.

1

Create the HTML structure with a header and paragraph

Write the HTML code to create a <header> element containing an <h1> with the text Important Notice. Below it, add a <p> element with the text This text needs decoration.

Tailwind

Hint

Use semantic tags: <header>, <h1>, and <p> with the exact text given.

2

Add Tailwind class for underline on the heading

Add the Tailwind CSS class underline to the <h1> element inside the <header> to underline the heading text.

Tailwind

  Important Notice 
  This text needs decoration

Hint

Use the Tailwind class underline inside the class attribute of the <h1> tag.

3

Add Tailwind class for line-through on the paragraph

Add the Tailwind CSS class line-through to the <p> element inside the <header> to add a line-through decoration to the paragraph text.

Tailwind

  Important Notice
  This text needs decoration 

Hint

Use the Tailwind class line-through inside the class attribute of the <p> tag.

4

Add responsive text color to the paragraph

Add the Tailwind CSS class md:text-red-600 to the <p> element so that on medium and larger screens the paragraph text color changes to red.

Tailwind

  Important Notice
  This text needs decoration 

Hint

Use the responsive prefix md: with the text color class text-red-600 inside the class attribute of the <p> tag.

Practice

1. Which Tailwind CSS class adds an underline to text?

easy

A. line-through

B. no-underline

C. underline

D. text-underline

Solution

1. Step 1: Understand the purpose of each class

   The underline class adds an underline to text, while line-through crosses out text, no-underline removes underline, and text-underline is not a valid Tailwind class.

2. Step 2: Match the class to the underline effect

   Since the question asks for adding underline, underline is the correct class.

3. Final Answer:

   underline -> Option C

4. Quick Check:

   Underline class = underline [OK]

Hint: Underline text with class 'underline' in Tailwind [OK]

Common Mistakes:

• Confusing underline with line-through
• Using no-underline to add underline
• Assuming text-underline exists

2. Which of these is the correct Tailwind class to remove underline from a link?

easy

A. no-underline

B. line-through

C. underline

D. text-no-underline

Solution

1. Step 1: Identify the class that removes underline

   The class no-underline removes underline decoration from text.

2. Step 2: Verify other options

   underline adds underline, line-through crosses out text, and text-no-underline is not a valid Tailwind class.

3. Final Answer:

   no-underline -> Option A

4. Quick Check:

   Remove underline = no-underline [OK]

Hint: Use 'no-underline' to remove underlines in Tailwind [OK]

Common Mistakes:

• Using underline to remove underline
• Assuming text-no-underline exists
• Confusing line-through with no-underline

3. What will be the visual effect of this HTML snippet?

<p class="underline line-through text-red-500">Hello</p>

medium

A. Text has no decoration but is red

B. Text is only underlined in red color

C. Text is only crossed out in red color

D. Text is underlined and crossed out in red color

Solution

1. Step 1: Analyze the classes applied

   The classes underline and line-through add underline and line-through decorations respectively. text-red-500 colors the text red.

2. Step 2: Understand combined text decorations

   Both underline and line-through appear simultaneously, so the text will be underlined and crossed out in red color.

3. Final Answer:

   Text is underlined and crossed out in red color -> Option D

4. Quick Check:

   underline + line-through + red text = underlined & crossed out red text [OK]

Hint: Multiple decorations combine visually in Tailwind [OK]

Common Mistakes:

• Thinking only one decoration applies
• Ignoring color class effect
• Assuming decorations override each other

4. Identify the error in this Tailwind usage:

<span class="underline text-underline-red">Sample</span>

medium

A. text-underline-red is not a valid Tailwind class

B. underline class is misspelled

C. Missing no-underline to remove underline

D. Underline cannot be used on span

Solution

1. Step 1: Check validity of classes

   underline is valid and adds underline. text-underline-red is not a valid Tailwind class for underline color.

2. Step 2: Understand how to color underline

   Tailwind uses decoration-red-500 or similar for underline color, not text-underline-red.

3. Final Answer:

   text-underline-red is not a valid Tailwind class -> Option A

4. Quick Check:

   Invalid class name = text-underline-red [OK]

Hint: Use 'decoration-color' classes for underline color [OK]

Common Mistakes:

• Using text-underline-red instead of decoration-red-500
• Assuming underline color uses text- prefix
• Thinking underline can't be on span

5. You want to create a paragraph with a green underline but no line-through. Which Tailwind classes should you use?

hard

A. underline decoration-green-600 no-line-through

B. underline decoration-green-600

C. underline text-green-600 line-through

D. underline decoration-green-600 line-through

Solution

1. Step 1: Choose classes for underline and color

   underline adds underline, and decoration-green-600 colors the underline green.

2. Step 2: Avoid line-through classes

   Since no line-through is wanted, do not add line-through or any similar class. There is no no-line-through class in Tailwind.

3. Final Answer:

   underline decoration-green-600 -> Option B

4. Quick Check:

   Underline + green decoration, no line-through [OK]

Hint: Use 'underline' + 'decoration-color' for colored underline [OK]

Common Mistakes:

• Adding non-existent no-line-through class
• Using text-green-600 colors text, not underline
• Including line-through by mistake