HTML Interview Questions and Answers for Freshers & Experienced Developer

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HTML Interview Questions

Introduction

HTML (HyperText Markup Language) is the foundation of every website on the internet. Whether you're a beginner or a seasoned web developer, having a solid understanding of HTML is crucial for cracking front-end or full-stack interviews. In this article, we’ve compiled the top 30 HTML interview questions with detailed answers to help you prepare for your next job interview.

Top 30 HTML Interview Questions and Answers

1. What is HTML?

HTML stands for HyperText Markup Language. It is used to structure web content and is the standard language for creating web pages.

2. What are HTML tags?

HTML tags are the building blocks of HTML. They are used to mark up the start and end of HTML elements.

3. What is the difference between HTML and HTML5?

HTML5 is the latest version of HTML with new features like <article>, <section>, <audio>, <video>, and better support for mobile and multimedia.

4. What is a semantic HTML element?

Semantic elements clearly describe their meaning in a human- and machine-readable way, e.g., <header>, <footer>, <nav>.

5. What is the purpose of the <DOCTYPE> declaration?

It tells the browser which HTML model to apply for rendering the page.

6. What is the difference between block-level and inline elements?

Block-level elements take up full width (<div>, <p>), while inline elements occupy only the required space (<span>, <a>).

7. How can you create a hyperlink in HTML?

Using the <a> tag:

<a href="https://digitalparthvlog.blogspot.com/">Visit Blog</a>

8. What is the use of the <meta> tag in HTML?

It provides metadata such as page description, keywords, author, and viewport settings for SEO and responsiveness.

9. What is the purpose of the <head> tag?

The <head> section contains meta-information about the HTML document like title, links to CSS, scripts, etc.

10. What is the <alt> attribute in an image tag?

It specifies alternative text for an image if the image cannot be displayed.

More Common HTML Interview Questions

11. What is the difference between <id> and <class>?

  • id is unique to a single element.

  • class can be used on multiple elements.

12. What are void elements in HTML?

Tags that don’t have a closing tag like <img>, <br>, <hr>.

13. How can you include an image in HTML?

<img src="image.jpg" alt="Description">

14. What is the <iframe> tag used for?

It is used to embed another HTML document within the current page.

15. What is the difference between <ul>, <ol>, and <dl>?

  • <ul>: Unordered list

  • <ol>: Ordered list

  • <dl>: Description list

16. How do you create a table in HTML?

Using <table>, <tr>, <td>, <th> tags.

17. What is the purpose of the <label> tag in forms?

It defines a label for an input element, improving accessibility.

18. How can you make a form in HTML?

Using the <form> tag with input types like text, radio, checkbox, etc.

19. What is the use of the placeholder attribute?

It shows a hint inside the input field until the user enters data.

20. What are data- attributes in HTML5?*

They are used to store custom data private to the page or application.

Advanced HTML Interview Questions

21. What is the purpose of the <canvas> element?

It is used to draw graphics via scripting (usually JavaScript).

22. How does localStorage differ from sessionStorage in HTML5?

  • localStorage persists even after the browser is closed.

  • sessionStorage lasts only during the page session.

23. What is the difference between <script> and <noscript>?

  • <script> is used to embed JavaScript.

  • <noscript> displays content if JavaScript is disabled in the browser.

24. What is responsive design in HTML?

Using techniques like the <meta viewport> tag and media queries to make a website work on all devices.

25. What is the <progress> tag?

It represents the progress of a task, like a download or upload.

26. What is the <figure> and <figcaption> tag used for?

They are used to mark up images with captions.

27. What is the difference between <section> and <div>?

<section> is semantic and meant for thematically grouped content, while <div> is a generic container.

28. Can we nest a form within another form?

No, HTML does not allow nesting of <form> tags.

29. What is the use of the autocomplete attribute in forms?

It enables or disables autocomplete for form fields.

30. What is the difference between GET and POST methods in a form?

  • GET: Appends data to the URL; not secure.

  • POST: Sends data in the request body; secured.

Conclusion

Preparing for an HTML interview becomes easy when you understand the core concepts and practice common questions. These 30 HTML interview questions are often asked in front-end or web development job interviews, especially for freshers. Make sure you understand the "why" behind each answer to stand out during the interview process.

Want more web development or digital marketing interview questions in Hindi? Visit Digital Parth Vlog for expert content, tutorials, and career tips!

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