<img> & <a> Tag: Questions and Answers
<img> Tag: Questions and Answers
1. What is the purpose of the <img> tag in HTML?
Answer: The <img> tag is used to embed images in a web page.
2. What attribute is used to specify the source of the image in the <img> tag?
Answer: The src attribute specifies the URL or path to the image file.
Example: <img src="image.jpg">
3. What does the alt attribute do in the <img> tag?
Answer: The alt attribute provides alternative text for an image if it cannot be displayed or for screen readers, making the web page more accessible.
Example: <img src="image.jpg" alt="A beautiful sunset">
4. How can you set the width and height of an image?
Answer: The width and height attributes specify the size of the image in pixels.
Example: <img src="image.jpg" width="300" height="200">
5. What is the purpose of the title attribute in the <img> tag?
Answer: The title attribute provides additional information about the image, which is usually displayed as a tooltip when the user hovers over the image.
Example: <img src="image.jpg" title="Sunset at the beach">
6. Can you use the <img> tag to display an image from an external URL?
Answer: Yes, the src attribute can point to an external URL. Example: <img src="https://www.example.com/image.jpg">
7. What does the loading attribute do in the <img> tag?
Answer: The loading attribute controls when the image should be loaded. It can have two values: lazy (load the image when it is about to enter the viewport) and eager (load the image as soon as possible).
Example: <img src="image.jpg" loading="lazy">
8. What is the usemap attribute used for in the <img> tag?
Answer: The usemap attribute is used to link the image to an image map, allowing specific areas of the image to be clickable.
Example: <img src="image.jpg" usemap="#map">
9. How do you specify an image as a link using the <img> tag?
Answer: To make an image clickable, wrap the <img> tag in an <a> tag.
Example:
<a href="https://www.example.com">
<img src="image.jpg" alt="Clickable image">
</a>
10. What is the srcset attribute used for in the <img> tag?
Answer: The srcset attribute allows the browser to choose from multiple images based on the display size or resolution (useful for responsive design).
Example:
<img src="image1.jpg" srcset="image1.jpg 600w, image2.jpg 1200w" alt="Responsive Image">
<a> Tag: Questions and Answers
11. What is the <a> tag used for in HTML?
Answer: The <a> tag is used to create hyperlinks that allow navigation to other pages or resources.
12. What does the href attribute do in the <a> tag?
Answer: The href attribute specifies the URL or destination of the link.
Example: <a href="https://www.example.com">Visit Example</a>
13. How do you make a link open in a new tab using the <a> tag?
Answer: Use the target="_blank" attribute in the <a> tag.
Example: <a href="https://www.example.com" target="_blank">Open in new tab</a>
14. What is the purpose of the title attribute in the <a> tag?
Answer: The title attribute provides additional information about the link, often displayed as a tooltip when the user hovers over the link.
Example: <a href="https://www.example.com" title="Visit the Example website">Visit Example</a>
15. How can you link to a specific part of a page within the same document using the <a> tag?
Answer: Use an anchor (id) on the target section and link to it with #.
Example:
<a href="#section1">Go to Section 1</a>
<div id="section1">This is Section 1</div>
16. What does the download attribute do in the <a> tag?
Answer: The download attribute specifies that the linked resource should be downloaded rather than navigated to.
Example: <a href="file.pdf" download="myfile">Download PDF</a>
17. How do you specify a mailto link using the <a> tag?
Answer: Use mailto: followed by an email address in the href attribute to create a mailto link.
Example: <a href="mailto:someone@example.com">Send Email</a>
18. What is the purpose of the rel attribute in the <a> tag?
Answer: The rel attribute specifies the relationship between the current document and the linked document. Common values include noopener, noreferrer, and nofollow.
Example: <a href="https://www.example.com" rel="noopener">Example</a>
19. How can you create a link to a phone number using the <a> tag?
Answer: Use the tel: scheme in the href attribute to create a link that initiates a phone call when clicked.
Example: <a href="tel:+1234567890">Call Us</a>
20. How do you add an image as a clickable link using the <a> tag?
Answer: Wrap the <img> tag inside the <a> tag to make the image clickable.
Example:
<a href="https://www.example.com">
<img src="image.jpg" alt="Clickable Image">
</a>
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Advanced Usage of <img> and <a>
21. What is the hreflang attribute in the <a> tag used for?
Answer: The hreflang attribute specifies the language of the linked document. It is often used in internationalized websites.
Example: <a href="https://www.example.com" hreflang="en">English Version</a>
22. What does the crossorigin attribute do in the <img> tag?
Answer: The crossorigin attribute controls how cross-origin requests are made for images. It can be set to anonymous or use-credentials.
Example: <img src="image.jpg" crossorigin="anonymous">
23. How do you add a fallback image in case the primary image fails to load?
Answer: Use the onerror event in the <img> tag to set a fallback image.
Example:
<img src="image.jpg" alt="Image" onerror="this.src='fallback.jpg'">
24. Can you open an image in a new tab using the <a> tag?
Answer: Yes, you can wrap the <img> tag inside an <a> tag with target="_blank".
Example:
<a href="image.jpg" target="_blank">
<img src="thumbnail.jpg" alt="Thumbnail">
</a>
25. What is the sizes attribute in the <img> tag used for?
Answer: The sizes attribute defines the display size of an image for responsive design, helping the browser choose the appropriate image based on the viewport size.
Example:
<img src="image.jpg" srcset="image-500w.jpg 500w, image-1000w.jpg 1000w" sizes="(max-width: 600px) 500px, 1000px" alt="Responsive Image">
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