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Top HTML Interview Questions and Answers for Beginners

#webdev #programming #beginners #tutorial

HTML (HyperText Markup Language) is the foundation of web development. Every web page you see on the internet is built using HTML. Whether you are a fresher or preparing for a web development interview, knowing the HTML questions and their answers can give you an edge. This guide covers the top HTML interview questions, answers, and examples that beginners should know.

  1. What is HTML?

Answer:
HTML stands for HyperText Markup Language. It is used to create and structure web pages. HTML uses tags to define elements like headings, paragraphs, links, images, and lists.

Example:

<!DOCTYPE html>
<html>
<head>
    <title>My First HTML Page</title>
</head>
<body>
    <h1>Hello, World!</h1>
    <p>This is a simple HTML page.</p>
</body>
</html>
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  1. What are HTML Tags?

Answer:
HTML tags are keywords enclosed in angle brackets (< >) used to define elements. Most tags come in pairs: an opening tag and a closing tag.

Example:

<p>This is a paragraph.</p>
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Note: Some tags are self-closing, like <img> and <br>.

  1. What is the difference between HTML and HTML5?

Answer:

  • HTML: Original markup language used for creating basic web pages.
  • HTML5: Latest version with new semantic tags (<header>, <footer>, <article>), multimedia support (<audio>, <video>), and improved APIs for modern web apps.

Example:

<video controls>
  <source src="movie.mp4" type="video/mp4">
</video>
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  1. What are Semantic Tags in HTML5?

Answer:
Semantic tags describe the meaning of the content, making it easier for browsers and developers to understand.

Examples:

  • <header> – Defines the header section.
  • <footer> – Defines the footer section.
  • <article> – Defines a standalone article.
  • <section> – Defines a section of content.
  1. What is the difference between <div> and <span>?

Answer:

  • <div> → Block-level element, used to group larger sections.
  • <span> → Inline element, used to style small portions of text.

Example:

<div>
    <p>This is a paragraph inside a div.</p>
</div>
<p>This is <span style="color:red;">red text</span> in a paragraph.</p>
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  1. What are HTML Attributes?

Answer:
Attributes provide additional information about an element. They appear in the opening tag.

Common Attributes:

  • id – Unique identifier
  • class – Class name for CSS or JS
  • src – Source for images or media
  • href – Link URL

Example:

<a href="https://www.example.com" target="_blank">Visit Example</a>
<img src="image.jpg" alt="Example Image">
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  1. What is the Difference Between Inline, Internal, and External CSS?

Answer:

  • Inline CSS: Added directly to the element using style attribute.
  • Internal CSS: Added inside <style> tag in <head>.
  • External CSS: Linked using <link> tag to a .css file.

Example (Inline):

<p style="color:blue;">This is blue text.</p>
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Example (External):

<link rel="stylesheet" href="style.css">
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  1. What is the Difference Between <ul>, <ol>, and <dl>?

Answer:

  • <ul> → Unordered list (bullets)
  • <ol> → Ordered list (numbers)
  • <dl> → Description list (terms and descriptions)

Example:

<ul>
    <li>HTML</li>
    <li>CSS</li>
</ul>

<ol>
    <li>First step</li>
    <li>Second step</li>
</ol>

<dl>
    <dt>HTML</dt>
    <dd>Markup language for web pages</dd>
</dl>
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  1. What is the Difference Between Block-Level and Inline Elements?

Answer:

  • Block-level elements: Take up full width and start on a new line (e.g., <div>, <p>, <h1>).
  • Inline elements: Take up only necessary width and stay on the same line (e.g., <span>, <a>, <strong>).
  1. How Can You Add Comments in HTML?

Answer:
HTML comments are ignored by browsers and used for documentation.

Syntax:

<!-- This is a comment -->
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  1. What is the Difference Between <head> and <body>?

Answer:

  • <head> → Contains metadata, title, links to CSS/JS, and meta tags.
  • <body> → Contains all the visible content of the page (text, images, videos, etc.).
  1. What is the Difference Between HTML and CSS?

Answer:

  • HTML: Structure of the web page.
  • CSS: Styling and layout of the web page.

Example:

<p style="color:green; font-size:20px;">Styled paragraph</p>
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  1. What is the Difference Between <strong> and <b>?

Answer:

  • <strong> → Indicates important content, used by screen readers for accessibility.
  • <b> → Only makes text bold, no semantic meaning.
  1. What are Forms in HTML?

Answer:
Forms allow users to submit data to a server.

Example:

<form action="/submit.php" method="post">
    <label>Name:</label>
    <input type="text" name="username">
    <input type="submit" value="Submit">
</form>
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  1. What is the Difference Between <iframe> and <img>?

Answer:

  • <iframe> → Embeds another webpage inside your page.
  • <img> → Displays an image.

Example:

<iframe src="https://www.example.com" width="300" height="200"></iframe>
<img src="image.jpg" alt="Example Image">
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  1. What are Meta Tags?

Answer:
Meta tags provide information about the page for browsers and search engines.

Example:

<meta charset="UTF-8">
<meta name="description" content="HTML Interview Questions and Answers">
<meta name="keywords" content="HTML, Interview, Questions, Answers">
<meta name="author" content="Suraj Kumar">
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  1. What is the Difference Between HTML and XHTML?

Answer:

  • HTML: More flexible, browsers can ignore some mistakes.
  • XHTML: Strict syntax rules, must be well-formed and valid XML.
  1. What Are HTML Entities?

Answer:
HTML entities are special characters that cannot be typed directly.

Example:

&lt;  → <
&gt;  → >
&amp; → &
&quot; → "
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  1. How to Include JavaScript in HTML?

Answer:

  • Inline: Using onclick or onload attributes.
  • Internal: Inside <script> tag.
  • External: Using <script src="script.js"></script>

Example:

<script>
    alert("Hello, World!");
</script>
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  1. Best Practices for HTML
  • Always use semantic tags (<header>, <footer>, <article>).
  • Keep HTML well-structured and indented.
  • Use lowercase tags and attributes.
  • Always include alt attributes for images.
  • Validate HTML using W3C Validator.

Conclusion

HTML is the backbone of web development. If you are preparing for an interview, mastering the questions above will help you answer confidently. Remember, employers value clear understanding and practical examples. Practice writing HTML code regularly and explore HTML5 new features to stay updated.

By understanding these questions and answers, beginners can easily crack HTML interviews and gain a solid foundation for web development.

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