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Crack Your Next Interview with These HTML Questions and Answers

If you are preparing for a web development job, one of the most important skills you’ll be tested on is HTML. HyperText Markup Language is the foundation of every web page, and companies want to ensure you are comfortable with both the basics and advanced concepts. To help you succeed, we’ve created this detailed guide with some of the most commonly asked HTML interview questions and answers that can give you the confidence to ace your next interview.

Whether you’re a fresher entering the world of web development or an experienced candidate brushing up your knowledge, this guide covers questions from beginner to advanced levels. Let’s dive in.

1. What is HTML?

Answer:
HTML (HyperText Markup Language) is the standard language used to structure content on the web. It consists of elements (tags) that tell the browser how to display text, images, links, and multimedia. For example, <h1> represents a heading, while <p> defines a paragraph.

2. Difference between HTML and XHTML?

Answer:

HTML: More flexible, allows minor errors like missing closing tags.
XHTML: Stricter version of HTML, must follow XML syntax rules (all tags closed, lowercase, properly nested). Modern browsers support both, but XHTML enforces clean and structured code.

3. What are semantic HTML tags?

Answer:
Semantic tags describe the purpose of the content they enclose. Examples:

<header> – defines header section
<article> – defines independent content
<footer> – defines footer section
<section> – defines thematic grouping

They improve SEO, accessibility, and code readability.

4. Explain the difference between `<div>` and `<span>`.

Answer:

<div> is a block-level container, used to group larger sections of content.
<span> is an inline container, used to style or group small pieces of text.

5. What is the difference between inline, block, and inline-block elements?

Answer:

Block: Starts on a new line, takes full width (e.g., <div>, <p>, <h1>).
Inline: Flows with text, only takes required width (e.g., <span>, <a>).
Inline-block: Behaves like inline but allows setting width and height.

6. What are HTML attributes?

Answer:
Attributes provide additional information about elements. They are always defined inside the start tag. Examples:

<a href="https://example.com" target="_blank">Click Here</a>

Here, href and target are attributes.

7. Difference between `<link>` and `<a>` tags?

Answer:

<link> is used to connect external resources like CSS files.
<a> is used to create hyperlinks to navigate between pages.

8. What are meta tags in HTML?

Answer:
Meta tags provide metadata (information about the web page) such as keywords, description, and author. They don’t appear on the page but are essential for SEO. Example:

<meta name="description" content="Learn HTML basics with examples">

9. What are HTML forms used for?

Answer:
Forms allow users to send data to a server. They are created with the <form> element and include fields like text boxes, radio buttons, checkboxes, and dropdowns. Example:

<form action="/submit" method="POST">
  <input type="text" name="username">
  <input type="submit" value="Submit">
</form>

10. Difference between relative, absolute, and fixed paths in HTML links?

Answer:

Relative: Points to a file relative to the current location (about.html).
Absolute: Full URL (https://example.com/about.html).
Fixed/Root-relative: Begins from the root (/images/logo.png).

11. What are self-closing tags in HTML?

Answer:
Tags that do not need a closing tag. Examples include <img>, <br>, and <input>.

12. Explain the difference between HTML5 and earlier versions.

Answer:
HTML5 introduced many new elements for modern web development such as:

<video>, <audio> for multimedia
<canvas> for drawing
<article>, <section>, <nav> for semantic structure
Local storage APIs for offline capabilities

13. What is the difference between GET and POST methods in forms?

Answer:

GET: Sends form data via URL, less secure, used for search queries.
POST: Sends form data in request body, more secure, used for sensitive data.

14. What is the difference between inline CSS, internal CSS, and external CSS in HTML?

Answer:

Inline CSS: Defined directly within the element (style attribute).
Internal CSS: Defined inside <style> tag within HTML.
External CSS: Linked through a separate .css file.

15. What are HTML APIs?

Answer:
HTML5 introduced built-in APIs like:

Geolocation API – to get user’s location.
Canvas API – for graphics and drawings.
Drag and Drop API – for draggable elements.
Local Storage API – for storing data on the client.

16. Difference between `<em>` and `<i>` tags?

Answer:

<em> emphasizes text with meaning (affects accessibility tools).
<i> italicizes text without semantic meaning.

17. What are ARIA roles in HTML?

Answer:
ARIA (Accessible Rich Internet Applications) roles enhance accessibility for screen readers. Example:

<div role="navigation">...</div>

18. What is the difference between `<strong>` and `<b>` tags?

Answer:

<strong> gives semantic importance (used by search engines and accessibility tools).
<b> only styles text as bold.

19. What is the difference between cookies, localStorage, and sessionStorage?

Answer:

Cookies: Small data stored in browser, sent with every request.
localStorage: Stores large data, persists until manually cleared.
sessionStorage: Stores data only until the browser session ends.

20. Final Tips to Crack Your HTML Interview

Revise the basics like tags, attributes, and forms.
Be prepared to write simple code snippets on the spot.
Understand accessibility and semantic tags.
Learn the latest HTML5 features like multimedia and APIs.
Practice building a small project with clean and semantic code.

Conclusion

Cracking an HTML interview doesn’t just require memorizing syntax—it’s about understanding how the web works and demonstrating clean coding practices. By going through these carefully explained HTML interview questions and answers, you’ll be better prepared to face both technical and HR rounds with confidence.

If you are serious about a web development career, keep practicing, build projects, and stay updated with new HTML5 standards. With preparation and confidence, your next interview can turn into a job offer.

Rishabh parmar @rishabhtpt