Image tag usage in HTML - Mini Project: Build & Apply

Image Tag Usage

📖 Scenario: You are creating a simple webpage for a local bakery. You want to show a picture of a delicious cake on the page to attract visitors.

🎯 Goal: Build a basic HTML page that displays an image of a cake using the <img> tag with proper attributes for accessibility and responsiveness.

📋 What You'll Learn

Use the <img> tag to display an image

Include the src attribute with the exact value cake.jpg

Add an alt attribute with the text Delicious chocolate cake

Set the image width to 300 pixels using the width attribute

Use semantic HTML structure with <main> and <header> tags

💡 Why This Matters

🌍 Real World

Images are essential on websites to show products, people, or places. Knowing how to add images properly helps make pages attractive and accessible.

💼 Career

Web developers must use the <code>&lt;img&gt;</code> tag correctly to ensure images load well, are accessible to screen readers, and look good on all devices.

1

Create the basic HTML structure

Write the basic HTML5 skeleton with lang="en" in the <html> tag, and include <head> with <meta charset="UTF-8"> and <title>Bakery</title>. Add an empty <body> tag.

HTML

    
    Bakery


    

Hint

Start with the standard HTML5 document structure including language and character set.

2

Add semantic structure with header and main

Inside the <body>, add a <header> with a heading <h1>Welcome to Our Bakery</h1> and a <main> section below it.

HTML

    
    Bakery


    

Hint

Use semantic tags to organize the page content clearly.

3

Insert the image tag inside main

Inside the <main> tag, add an <img> tag with src="cake.jpg", alt="Delicious chocolate cake", and width="300" attributes.

HTML

    
    Bakery


    
        Welcome to Our Bakery
    
    
        
    

Hint

The <img> tag needs src, alt, and width attributes exactly as specified.

4

Add responsive style for the image

Add a <style> block inside the <head> that sets img to have max-width: 100% and height: auto for responsiveness.

HTML

    
    Bakery
    


    
        Welcome to Our Bakery
    
    
        
    

Hint

Use CSS inside a <style> tag to make the image scale nicely on smaller screens.

Practice

1. What is the main purpose of the <img> tag in HTML?

easy

A. To style the webpage

B. To create links to other pages

C. To add text content

D. To display images on a webpage

Solution

1. Step 1: Understand the role of the <img> tag

   The <img> tag is specifically designed to add pictures to a webpage.

2. Step 2: Compare with other options

   Other tags like <a> create links, <p> add text, and CSS styles the page, so they are not correct here.

3. Final Answer:

   To display images on a webpage -> Option D

4. Quick Check:

   <img> tag = display images [OK]

Hint: Remember: <img> always shows pictures [OK]

Common Mistakes:

• Confusing <img> with <a> for links
• Thinking <img> adds text
• Assuming <img> styles content

2. Which of the following is the correct syntax to add an image with source "photo.jpg" and alternative text "A photo"?

easy

A.

B.

C.

D.

Solution

1. Step 1: Check the tag and attributes

   The correct tag is <img> with attributes src for source and alt for alternative text.

2. Step 2: Identify incorrect attributes or tags

   <image> is not a valid tag, href is for links, and title is not the alt text.

3. Final Answer:

   <img src="photo.jpg" alt="A photo"> -> Option A

4. Quick Check:

   Use src and alt in <img> [OK]

Hint: Use src for image path and alt for description [OK]

Common Mistakes:

• Using <image> instead of <img>
• Using href instead of src
• Confusing alt with title attribute

3. What will the browser display when rendering this HTML?

<img src="flower.png" alt="A red flower">

medium

A. The text 'A red flower' instead of an image

B. Nothing, because alt text is missing

C. The image file named flower.png if it exists, otherwise a broken image icon

D. An error message on the page

Solution

1. Step 1: Understand how the browser uses src and alt

   The browser tries to load the image from the src path. If it succeeds, it shows the image.

2. Step 2: Role of alt attribute

   If the image cannot load, the alt text is shown as a fallback. No error message appears on the page.

3. Final Answer:

   The image file named flower.png if it exists, otherwise a broken image icon -> Option C

4. Quick Check:

   Image shows if src works, alt shows if not [OK]

Hint: Image shows if src valid; alt shows if image missing [OK]

Common Mistakes:

• Thinking alt text always shows instead of image
• Expecting error messages on page
• Assuming missing alt means no display

4. Identify the error in this image tag:

<img src='cat.jpg' alt=Cat Picture>

medium

A. Incorrect tag name, should be <image>

B. Missing quotes around the alt attribute value

C. src attribute should be alt

D. alt attribute is not needed

Solution

1. Step 1: Check attribute syntax

   HTML attributes with spaces in values must be quoted. alt=Cat Picture lacks quotes around 'Cat Picture'.

2. Step 2: Verify tag and attributes

   The tag <img> is correct, src is correct, and alt is needed for accessibility.

3. Final Answer:

   Missing quotes around the alt attribute value -> Option B

4. Quick Check:

   Attribute values with spaces need quotes [OK]

Hint: Always quote attribute values with spaces [OK]

Common Mistakes:

• Leaving out quotes for multi-word alt text
• Using <image> instead of <img>
• Removing alt attribute entirely

5. You want to add an image that is decorative only and should be ignored by screen readers. Which is the best way to write the <img> tag?

hard

A.

B.

C.

D.

Solution

1. Step 1: Understand accessibility for decorative images

   Decorative images should have an empty alt attribute (alt="") so screen readers skip them.

2. Step 2: Analyze other options

   Omitting alt means screen readers may read the file name; descriptive alt text is for meaningful images; aria-hidden="false" means not hidden.

3. Final Answer:

   <img src="decorative.png" alt=""> -> Option A

4. Quick Check:

   Empty alt hides decorative images from screen readers [OK]

Hint: Use alt="" for decorative images to hide from screen readers [OK]

Common Mistakes:

• Omitting alt attribute entirely
• Adding descriptive alt for decorative images
• Using aria-hidden="false" instead of true