Alt text for images in HTML - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to add alternative text to the image for accessibility.

HTML

<img src="flower.jpg" alt="[1]">

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

Aimage

Bflower.jpg

CA red flower in a garden

Dphoto

Attempts:

3 left

💡 Hint

Common Mistakes

Using the image file name as alt text.

Leaving the alt attribute empty or missing.

The alt attribute should describe the image content clearly for screen readers.

2fill in blank

medium

Complete the code to provide meaningful alt text for the logo image.

HTML

<img src="logo.png" alt="[1]">

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

Alogo.png

BCompany logo

Cimage

Dlogo

Attempts:

3 left

💡 Hint

Common Mistakes

Using the file name as alt text.

Using vague words like 'image' or 'logo' without context.

The alt text should clearly state that this is the company logo for users who cannot see the image.

3fill in blank

hard

Fix the error in the alt attribute to improve accessibility.

HTML

<img src="chart.png" alt=[1]>

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

A"Sales data chart"

BSales data chart

Cchart.png

D"chart.png"

Attempts:

3 left

💡 Hint

Common Mistakes

Leaving alt text without quotes.

Using file names instead of descriptive text.

The alt attribute value must be enclosed in quotes to be valid HTML.

4fill in blank

hard

Fill both blanks to add an image with alt text and a width of 200 pixels.

HTML

<img src="[1]" alt="[2]" width="200">

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

Asunset.jpg

BA beautiful sunset over the mountains

C200

Dsunset

Attempts:

3 left

💡 Hint

Common Mistakes

Swapping the alt text and file name.

Using non-descriptive alt text.

The src attribute needs the image file name, and the alt attribute needs descriptive text.

5fill in blank

hard

Fill all three blanks to create an accessible image with alt text, a title, and a CSS class.

HTML

<img src="[1]" alt="[2]" class="[3]" title="Sunset image">

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

Asunset.png

BA colorful sunset with clouds

Cresponsive-img

Dimage

Attempts:

3 left

💡 Hint

Common Mistakes

Using generic alt text like 'image'.

Leaving out the class attribute or using incorrect class names.

The src is the image file, alt describes the image, and class applies styling.

Practice

1. What is the main purpose of the alt attribute in an <img> tag?

easy

A. To add a border around the image

B. To provide a text description of the image for screen readers and when the image cannot load

C. To change the image size on the webpage

D. To link the image to another webpage

Solution

1. Step 1: Understand the role of alt text

   The alt attribute gives a text description of the image content.

2. Step 2: Recognize accessibility and fallback use

   This text helps screen readers for visually impaired users and shows if the image fails to load.

3. Final Answer:

   To provide a text description of the image for screen readers and when the image cannot load -> Option B

4. Quick Check:

   Alt text = image description [OK]

Hint: Alt text describes images for accessibility and fallback [OK]

Common Mistakes:

• Thinking alt changes image size
• Using alt to add styling like borders
• Confusing alt with links

2. Which of the following is the correct way to add alt text to an image in HTML?

easy

A.

B.

C.

D.

Solution

1. Step 1: Identify the correct attribute for alt text

   The correct attribute to describe images is alt.

2. Step 2: Check the syntax of the <img> tag

   <img src="flower.jpg" alt="Beautiful red flower"> uses alt="Beautiful red flower", which is correct HTML syntax.

3. Final Answer:

   <img src="flower.jpg" alt="Beautiful red flower"> -> Option A

4. Quick Check:

   Use alt attribute for image description [OK]

Hint: Use alt="description" inside <img> tag [OK]

Common Mistakes:

• Using non-existent attributes like description or text
• Confusing alt with title attribute
• Omitting quotes around alt text

3. What will a screen reader announce for this image tag?

<img src="logo.png" alt="Company logo">

medium

A. It will say 'Company logo' aloud

B. It will ignore the image and say nothing

C. It will read the file name 'logo.png'

D. It will say 'image' only

Solution

1. Step 1: Understand screen reader behavior with alt text

   Screen readers read the alt attribute to describe images to users.

2. Step 2: Check the alt attribute content

   The alt text is "Company logo", so the screen reader will announce this phrase.

3. Final Answer:

   It will say 'Company logo' aloud -> Option A

4. Quick Check:

   Screen reader reads alt text [OK]

Hint: Screen readers read alt text, not file names [OK]

Common Mistakes:

• Assuming screen readers read image file names
• Thinking screen readers ignore images with alt
• Confusing alt with title attribute

4. Identify the error in this image tag:

<img src="photo.jpg" alt>

medium

A. The alt attribute should be written as alt-text

B. The src attribute is incorrect

C. The img tag is missing a closing tag

D. The alt attribute is missing a value

Solution

1. Step 1: Check the alt attribute syntax

   The alt attribute must have a value, like alt="description". Here it is empty without ="...".

2. Step 2: Confirm other attributes and tag correctness

   The src attribute is correct, and <img> is self-closing in HTML5, so no closing tag needed.

3. Final Answer:

   The alt attribute is missing a value -> Option D

4. Quick Check:

   Alt attribute needs a value in quotes [OK]

Hint: Alt attribute must have a quoted value [OK]

Common Mistakes:

• Leaving alt attribute empty without =""
• Thinking img needs a closing tag
• Using invalid attribute names like alt-text

5. You have a decorative image that adds no meaning to your page. How should you write the img tag for best accessibility?

hard

A.

B.

C.

D.

Solution

1. Step 1: Understand alt text for decorative images

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

2. Step 2: Evaluate options for accessibility

   <img src="decorative.png" alt=""> uses empty alt, which is correct. Omitting alt or using generic text causes confusion.

3. Final Answer:

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

4. Quick Check:

   Empty alt hides decorative images from screen readers [OK]

Hint: Use alt="" for decorative images [OK]

Common Mistakes:

• Omitting alt attribute entirely
• Using vague alt text like 'image' or 'decorative image'
• Adding unnecessary descriptions for decoration