Preparing for a web developer interview and looking for the most common HTML interview questions? This guide includes important HTML interview questions and answers for both freshers and experienced professionals. HTML is the foundation of web development and plays a major role in building websites and web applications.
If you are starting your career after completing a web development course, you should be prepared for basic HTML interview questions. Experienced developers may face advanced HTML interview questions related to HTML5, semantic tags, forms, SEO, and accessibility.
These easy-to-understand HTML interview questions and answers will help you strengthen your concepts and prepare confidently for your interview.
Basic HTML Interview Questions for Freshers (With Answers)
The following are some commonly asked HTML interview questions and answers for freshers. These questions also cover basic HTML and CSS concepts to help you build a strong foundation in web development:
1. What is HTML?
This is one of the most commonly asked HTML interview questions for both freshers and experienced professionals. Having a clear understanding of the basics is very important.
HTML, which stands for HyperText Markup Language, is the standard language used to create and structure web pages on the World Wide Web. It helps browsers display content such as text, images, tables, links, and multimedia in a proper format.
HTML makes web pages interactive and organized by using different tags and elements. Web pages created using HTML are usually saved with the .html extension.
2. What are the main features of HTML?
HTML has several important features that make it widely used for web development:
- HTML is a markup language used to create and structure web pages.
- It is simple, beginner-friendly, and easy to understand.
- HTML allows developers to add images, videos, audio, tables, and links to web pages.
- It is platform-independent and works on operating systems like Windows, Linux, and macOS.
- HTML is not case-sensitive, so tags can be written in uppercase or lowercase.
- It helps create interactive web pages by connecting different pages through hyperlinks.
3. What are HTML tags, and how to use them?
HTML tags are special keywords used to create and structure web pages. They define how content should appear in a web browser. Most HTML tags consist of an opening tag, content, and a closing tag, while some tags are self-closing.
HTML documents mainly contain tags and content. A web browser reads the HTML code from top to bottom and left to right to display the page correctly. Tags can also include attributes that provide additional information or functionality.
<tag> content </tag>Content is placed between HTML tags to display text, images, links, tables, and other elements on a web page.
4. What is the difference between HTML elements & HTML tags?
Here is a tabular comparison of HTML elements vs HTML tags to understand the differences between the two easily:
| HTML Elements | HTML Tags |
| An HTML element is a complete component of a web page that includes a start tag, attributes, content, and an end tag. | HTML tags are used to define the beginning or end of an HTML element. |
| Elements contain a start tag, content, and an end tag. | HTML tags begin with < and end with >. Anything written between them is called a tag. |
| HTML elements hold the content displayed on a web page. | HTML tags hold and define HTML elements. |
| HTML elements define the overall structure and content of the page. | HTML tags work like keywords, where each tag has a specific meaning. |
| Example: <p>This is a paragraph.</p> | Example: <a> represents the opening anchor tag and </a> represents the closing anchor tag. |
5. What is HTML formatting?
HTML formatting is used to improve the appearance and presentation of text on a web page. It helps make content more attractive, readable, and meaningful for users.
HTML provides different formatting tags to style text in various ways, such as bold, italic, underlined, highlighted, or smaller text. These tags help organize content and improve the user experience.
Some commonly used HTML formatting tags are:
- <b> – Makes text bold
- <i> – Makes text italic
- <u> – Underlines text
- <mark> – Highlights text
- <small> – Displays smaller text
Example:
<b>Bold Text</b>
<i>Italic Text</i>6. Do all HTML tags have an end tag?
No, not all HTML tags have an end tag. Some HTML tags are self-closing tags, which means they do not require a closing tag.
For example, the <br> tag is used to insert a line break, and the <img> tag is used to add an image to a web page.
7. Which HTML tags are used to display the data in tabular format?
To display the data in tabular form, the following HTML tags are used:
| <table> | Represents a table |
| <tr> | Defines a row in a table |
| <th> | Used for a header cell in a table |
| <td> | Defines a cell in the table |
| <caption> | Represents the table caption |
| <col> | Used with <colgroup> element to specify each column property |
| <tbody> | Group the body content in the table |
| <thead> | Groups the header content in the table |
| <tfootr> | Groups the footer content in a table |
This is one of the most common HTML interview questions for freshers, as they should know about all types of tags used.
8. What are HTML attributes & how to use them?
Each HTML tag can contain attributes that affect how the tag behaves or appears on a web page. Attributes provide additional information about HTML elements.
For example, the type attribute in the <input> tag is used to specify whether the input field is a text box, checkbox, radio button, and more.
Attributes are written inside the opening tag, directly after the tag name. They are used only in opening or self-closing tags and never in closing tags.
Using Attributes:
<!-- Text field --><input type="text" />
<!-- Checkbox --><input type="checkbox" />
<!-- Radio button --><input type="radio" value="on" />9. What is the basic structure of an HTML template?
The basic structure of an HTML template is as follows you must know while preparing for HTML interview questions and answers for freshers:
<html>
<head>
<title>Page Title</title>
</head>
<body>Page content</body>
</html>10. How many heading tags are there in HTML?
There are six different heading tags in HTML. Each heading tag has a different font size and importance level. The <h1> tag represents the largest heading, while the <h6> tag represents the smallest heading.
Example:
<h1>Heading no. 1</h1>
<h2>Heading no. 2</h2>
<h3>Heading no. 3</h3>
<h4>Heading no. 4</h4>
<h5>Heading no. 5</h5>
<h6>Heading no. 6</h6>
11. How to create an HTML hyperlink?
In HTML, hyperlinks are created using the <a> (anchor) tag. A hyperlink is used to connect one web page to another or open a specific URL when clicked.
Links in HTML can appear in different states:
- Unvisited Link – Displayed as blue and underlined
- Visited Link – Displayed as purple and underlined
- Active Link – Displayed as red and underlined
Syntax:
<a href="URL">Link Text</a>12. What is the difference between Block Level Elements & Inline Elements in HTML?
You must know the difference between block-level and inline elements, as it is one of the commonly asked HTML interview questions.
Here is a tabular comparison of block-level elements and inline elements to understand the differences easily:
| Block-Level Elements | Inline Elements |
| A block-level element occupies the full width available and always starts on a new line. | Inline elements only take up the space required by their content. |
| These elements create a new block or section on the web page. | These elements flow within the same line without starting a new line. |
| Examples: <div>, <section>, <form>, <nav> | Examples: <span>, <b>, <img>, <strong>, <a>, <input> |
13. What are HTML comments?
HTML comments are used to add notes or explanations inside an HTML document to make the code easier to understand. These comments are not displayed in the browser, but they help developers understand the purpose of a specific section of code.
An HTML comment starts with <!-- and ends with -->. Anything written between these symbols is ignored by the browser, even if it contains valid HTML code.
For Example:
<!-- This is a comment! -->
<!-- Comments spanning multiple lines -->
<!-- This part is ignored in the browser -->14. What is HTML5? What are new features in it that are not available with HTML?
HTML5 is the most recent version of the HyperText Markup Language (HTML). It is used to create and structure modern web pages and web applications.
HTML5's new features include the following:
- SVG, canvas, and other vector graphics are supported in HTML5. In older HTML versions, vector graphics required plugins like Flash, VML, or Silverlight.
- HTML5 supports multimedia elements like <audio> and <video> without requiring external plugins.
- HTML5 provides better support for modern JavaScript APIs and interactive web applications.
- HTML5 introduces semantic elements such as <header>, <section>, <article>, and <footer> for better webpage structure.
- HTML5 does not use SGML and has improved parsing rules for better compatibility across browsers.
- HTML5 supports LocalStorage and SessionStorage for storing data in the browser.
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15. What is Semantic HTML?
Semantic HTML is the use of HTML markup in web pages and web applications to give meaning to the content. It defines the purpose and meaning of the content instead of only describing its appearance or layout.
Overall, semantic HTML makes the code more meaningful, readable, and easier to understand for both browsers and developers.
For Example:
<form>, <table>, and <article>These tags clearly describe the type of content they contain.
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16. How to create a nested webpage in HTML?
A nested webpage is created using the HTML <iframe> tag. It is used to display one webpage inside another webpage. In simple words, it represents a webpage within a webpage. The <iframe> tag defines an inline frame in HTML.
For Example:
<!DOCTYPE html>
<html>
<body>
<h2>HTML example</h2>
<p>Height and width attributes specify the iframe size:</p>
<iframe src="https://www.wscube.co/" height="200" width="300"></iframe>
</body>
</html>You should practice such concepts before attending interviews so that you are well-prepared for HTML interview questions and answers.
17. In HTML, can hyperlinks only be applied to text?
No, hyperlinks in HTML can be applied to more than just text. They can also be used with images, buttons, and other HTML elements.
The <a> (anchor) tag is used to create hyperlinks in HTML. Anything placed inside the anchor tag becomes clickable and redirects the user to another page or URL.
For Example:
<a href="https://example.com">
<img src="image.jpg" alt="Example Image">
</a>In this example, the image acts as a clickable hyperlink.
18. What is a style sheet in HTML?
A style sheet is used to control the appearance and formatting of web pages. It helps create a consistent and visually appealing design across multiple web pages.
The most commonly used style sheet language is Cascading Style Sheets (CSS). CSS is used to style HTML elements by applying colors, fonts, spacing, layouts, and other visual effects.
A style sheet helps separate the content of a webpage from its design, making web pages easier to manage and maintain.
The style sheet provides the following formatting elements:
- Font styles
- Bold, italic, and underlined text
- Text alignment and justification
- Colors and backgrounds
- Superscript and subscript text
- Spacing and layout styling
19. What is an image map in HTML?
An image map in HTML is used to create clickable areas on a single image that can link to different web pages or locations. It is created using the <map> tag along with the <area> tag.
With image mapping, you can define different shapes and clickable regions inside an image, such as rectangles, circles, or polygons.
20. What is a marquee in HTML?
A marquee in HTML is used to create scrolling text or images on a web page. It is represented using the <marquee> tag. The content inside the marquee tag can move horizontally or vertically across the screen.
The <marquee> tag supports different attributes such as direction, speed, behavior, and loop to control the scrolling effect.
However, the <marquee> tag is deprecated in HTML5 and is not recommended for modern web development. CSS animations are preferred instead.
Example:
<marquee>Welcome to our website!</marquee>Also Read: Best HTML Projects Ideas for Beginners (With Source Code)
21. What is a span tag in HTML? Explain with an example.
The <span> tag in HTML is used to style or format a specific part of text without affecting the layout of the page. It is commonly used with CSS to change text color, background color, font style, and more.
The <span> tag is mainly used:
- To change the text color
- To add a background color
- To highlight specific text
Example:
<p>
<span style="color:#ffffff;">
In this page we use span.
</span>
</p>22. What is the difference between DIV and SPAN in HTML?
Here is a tabular comparison of DIV and SPAN in HTML to understand the differences easily:
| DIV Tag | SPAN Tag |
| The <div> tag is a block-level element. | The <span> tag is an inline element. |
| It starts on a new line and occupies the full available width. | It only takes up the space required by the content. |
| It is mainly used to group larger sections of HTML elements. | It is mainly used to style or format small parts of text. |
| Commonly used for page layout and structure. | Commonly used for styling specific text or inline content. |
| Example: <div>This is a div element.</div> | Example: <span>This is a span element.</span> |
23. Who wrote the first version of HTML?
The first version of HTML was written by Tim Berners-Lee in 1991. He created HTML to develop and structure web pages for the World Wide Web. Tim Berners-Lee is also known as the inventor of the World Wide Web.
24. What is the purpose of using HTML?
HTML can be used for various purposes, including writing code that is clear and easy to understand. This language allows you to isolate meaning from text and style by writing descriptive and semantic code.
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25. When was HTML invented?
HTML, or HyperText Markup Language, was invented by Tim Berners-Lee in 1991. The first official version of HTML was later published in 1993.
26. How to insert a picture onto a web page's background image?
To add a picture as the background image of a web page, you can use the background attribute inside the <body> tag. Replace image.gif with the name or path of your image file.
To add a picture as the background image of a web page, the background-image property in CSS is used. It allows an image to appear in the background of the webpage.
Example:
<body background="image.gif">This will set the specified image as the background of the web page.
27. How do you make the text on a webpage that, when clicked, sends an email?
To create clickable text that sends an email, use the mailto command inside the href attribute of the <a> tag. When the user clicks the link, it opens the default email application.
Example:
<a href="mailto:youremailaddress@xyz.com">
Text to be clicked
</a>28. What is the HTML layout?
The HTML layout defines how a web page is structured and organized. Every website has a unique layout that helps users easily navigate and focus on important content
HTML5 provides several semantic elements to define different sections of a webpage:
- <header>: Defines the header section of a document or webpage.
- <nav>: Used to create navigation links.
- <section>: Defines a section of content in a document.
- <article>: Represents self-contained content such as articles or blog posts.
- <aside>: Defines content separate from the main content, such as a sidebar.
- <footer>: Specifies the footer section of a document or webpage.
29. What are empty elements in HTML?
Empty elements are HTML elements that have no content. For example, <br>, <hr>, and so on.
So, these are some of the popular and top HTML interview questions for freshers. Mastering these questions will surely place you in a good firm as a fresher web developer.
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30. What are HTML entities?
HTML entities are special codes used to display reserved characters, symbols, and invisible characters on a web page. They are mainly used when a character cannot be typed directly in HTML code.
HTML entities usually begin with an ampersand (&) and end with a semicolon (;).
Common HTML Entities:
| Entity | Description |
| < | Less than (<) |
| > | Greater than (>) |
| & | Ampersand (&) |
| | Non-breaking space |
| © | Copyright symbol (©) |
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31. What are meta tags in HTML?
Meta tags in HTML are used to provide information about a web page to browsers and search engines. These tags are placed inside the <head> section of an HTML document and are not displayed on the webpage.
Meta tags help define details such as page description, keywords, author name, character encoding, and viewport settings for responsive design.
Example:
<meta charset="UTF-8">
<meta name="description" content="HTML Tutorial">
<meta name="viewport" content="width=device-width, initial-scale=1.0">32. What is the difference between HTML and HTML5?
Here is a tabular comparison of HTML and HTML5 to understand the differences easily:
| HTML | HTML5 |
| HTML is the standard markup language used to create web pages. | HTML5 is the latest version of HTML with improved features and functionality. |
| It has limited support for multimedia elements. | It provides built-in support for audio, video, and graphics. |
| HTML requires plugins like Flash for multimedia content. | HTML5 supports multimedia without requiring external plugins. |
| It does not support semantic elements properly. | HTML5 introduces semantic tags like <header>, <section>, and <article>. |
| HTML has limited storage capabilities. | HTML5 supports LocalStorage and SessionStorage. |
| It offers less support for modern web applications. | HTML5 is designed for responsive and interactive web applications. |
33. What are forms in HTML?
HTML forms are used to collect user input on a web page. They allow users to enter data such as names, emails, passwords, feedback, and more.
Forms are created using the <form> tag and can contain different input elements like text fields, radio buttons, checkboxes, submit buttons, and dropdown lists.
Example:
<form>
Name: <input type="text">
<input type="submit" value="Submit">
</form>34. What is the difference between GET and POST methods in HTML forms?
Here is a tabular comparison of GET and POST methods in HTML forms:
| GET Method | POST Method |
| The GET method sends form data through the URL. | The POST method sends form data inside the request body. |
| Data entered by the user is visible in the browser URL. | Data is not visible in the browser URL. |
| It is less secure because the data can be seen easily. | It is more secure for sending sensitive information. |
| Suitable for small amounts of data. | Suitable for large amounts of data. |
| GET requests can be bookmarked. | POST requests cannot be bookmarked easily. |
| Commonly used for search forms and data retrieval. | Commonly used for login forms and data submission. |
35. What are the different types of lists in HTML?
HTML provides different types of lists to organize and display information on a web page. The three main types of lists in HTML are:
| List Type | Description |
| Ordered List (<ol>) | Displays items in a numbered format. |
| Unordered List (<ul>) | Displays items using bullets or symbols. |
| Description List (<dl>) | Used to display terms and their descriptions. |
Example:
<ol>
<li>Item 1</li>
<li>Item 2</li>
</ol>
<ul>
<li>Apple</li>
<li>Mango</li>
</ul>
<dl>
<dt>HTML</dt>
<dd>HyperText Markup Language</dd>
</dl>36. What is the difference between id and class attributes in HTML?
Here is a tabular comparison of id and class attributes in HTML:
| id Attribute | class Attribute |
| The id attribute uniquely identifies a single HTML element. | The class attribute is used to group multiple HTML elements. |
| An id value must be unique within a webpage. | A class value can be used for multiple elements. |
| It is mainly used to target a specific element using CSS or JavaScript. | It is mainly used to apply the same style to multiple elements. |
| An element can have only one unique id. | An element can have multiple classes. |
| In CSS, id is represented using #. | In CSS, class is represented using .. |
Example:
<p id="heading">This is an ID example.</p>
<p class="text">This is a class example.</p>37. What are data attributes in HTML?
Data attributes in HTML are custom attributes used to store extra information inside HTML elements. These attributes start with data- and are mainly used to store custom data for JavaScript or CSS.
They do not affect the layout of the webpage and help developers add additional information to elements without using non-standard attributes.
Example:
<div data-user="Mohit" data-id="101">
User Information
</div>38. Where is the iframe tag used?
An inline frame is specified via the iframe> tag. It displays a web page within a web page. For instance, the src element specifies the URL of the document that occupies the iframe.
Syntax:
<iframe src=”URL”></iframe>
39. How many types of CSS can be included in HTML?
There are three methods for incorporating CSS into HTML:
1. Inline CSS
Inline CSS is used to style a specific HTML element. The style attribute is added directly inside the HTML tag.
Example:
<p style="color: blue; font-size: 20px;">
Welcome to HTML
</p>2. External CSS
External CSS is used when the same styling needs to be applied to multiple web pages. The CSS file is linked using the <link> tag inside the <head> section.
Example:
<head>
<link rel="stylesheet" type="text/css" href="style.css" />
</head>3. Internal CSS
Internal CSS is used when a single HTML page requires unique styling. The CSS code is written inside the <style> tag within the <head> section.
Syntax:
<head>
<style>
body {
background-color: lightgray;
}
h1 {
color: darkblue;
}
p {
font-size: 18px;
}
</style>
</head>40. What is the difference between cell spacing & cell padding?
Here is a tabular comparison of cell spacing and cell padding in HTML tables:
| Cell Spacing | Cell Padding |
| Cell spacing defines the space between table cells. | Cell padding defines the space between the cell content and the cell border. |
| It controls the gap outside the table cells. | It controls the gap inside the table cells. |
| Applied using the cellspacing attribute. | Applied using the cellpadding attribute. |
| Increases the distance between cells. | Increases the space within a cell. |
Example:
<table cellspacing="10" cellpadding="5">41. Which HTML tag is used to separate sections of text?
The <br> tag is used to insert a line break and separate lines of text in HTML. It is an empty tag and does not require a closing tag.
Other tags such as <p> and <blockquote> are also used to separate and organize text content on a web page.
- <p> tag – Used to define a paragraph.
- <blockquote> tag – Used to define a section quoted from another source.
Example:
Line 1<br>
Line 242. How many types of media formats does HTML support?
HTML supports a wide range of media forms, including music, video, movies, sounds, and animations.
HTML supports the following formats:
- Images: jpg, jpeg, png, gif, SVG, apng, BMP icon
- Audio: RealAudio, WMA, MIDI, AAC, WAV, MP3
- Video: MPEG, AVI, QuickTime, RealVideo, WMV, Flash, WebM, and MP4
43. How are active links different from normal links in HTML?
Here is a comparison between active links and normal links in HTML:
| Active Link | Normal Link |
| An active link is a link that is currently being clicked by the user. | A normal link is a regular hyperlink that has not been clicked. |
| It is usually displayed in red by default. | It is usually displayed in blue and underlined by default. |
| The active state exists only while the user clicks the link. | A normal link remains unchanged until it is visited or activated. |
| Represented using the :active pseudo-class in CSS. | Represented using the default link state or :link pseudo-class. |
44. What happens if the external CSS file is opened in a browser?
When you open the CSS file in a browser, nothing happens. It fails since the file has a different extension. So the only way to use an external CSS file is to reference it within another HTML document using the <link/> tag.
45. Is there any chance that the text will appear outside of the browser window?
Yes, text can appear outside of the browser window if it is too long or if proper styling is not applied. This usually happens when large words, fixed-width elements, or improper CSS properties are used.
To prevent this issue, CSS properties such as word-wrap, overflow, and responsive layouts can be used to ensure the content fits properly within the browser window.
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46. What is the difference between HTML & XHTML?
This is among the crucial interview questions on HTML and you must know the correct answer.
Please find the tabular comparison of HTML vs XHTML to know the differences better:
| HTML | XHTML |
| HTML stands for HyperText Markup Language. | XHTML stands for Extensible HyperText Markup Language. |
| It is derived from SGML (Standard Generalized Markup Language). | It combines features of both XML and HTML. |
| HTML is mainly used for static web pages. | XHTML is considered a more strict and structured markup language. |
| HTML uses a flexible document structure. | XHTML follows strict XML-based markup rules. |
| HTML mainly focuses on displaying data. | XHTML focuses on describing and structuring data properly. |
| HTML is not case-sensitive. | XHTML is case-sensitive, and all tags and attributes must be written in lowercase. |
47. How to include a favicon in HTML?
A favicon is a small icon displayed on the browser tab next to the webpage title. In HTML, a favicon is added using the <link> tag inside the <head> section of the document.
Example:
<head>
<link rel="icon" type="image/png" href="favicon.png">
</head>In this example, favicon.png is the image file used as the website favicon.
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48. What is the use of a figure tag in HTML5?
The <figure> tag is used to identify self-contained information connected to the main content. It includes self-contained information such as images, diagrams, illustrations, etc.
The graphic, caption, and contents are all referred to as a single unit in the document's main flow. The image src and figcaption elements are part of the <figure> tag. Img src is used to insert an image source into a document, whereas figcaption is used to change the caption of an image.
For Example:
<figure>
<img src=”pancakes.jpg” alt=”Blueberry Pancakes”>
<figcaption>A Stack of Blueberry Pancakes</figcaption>
</figure>49. What is a datalist tag in HTML?
In HTML files, the <datalist> tag enables auto-complete functionality. It allows users to include an auto-complete form based on predetermined options. It can be combined with an input tag to allow users to conveniently fill out forms with predetermined options.
For Example:
If the user types the letter A, the list will display car names starting with A.
<label for="car">Choose your car from the list:</label>
<input list="cars" name="car" id="car">
<datalist id="cars">
<option value="Honda">
<option value="Hyundai">
<option value="Maruti">
<option value="Audi">
<option value="BMW">
</datalist>If you have been working as a web developer for some years now, then this is going to be one of the top HTML interview questions and answers for experienced professionals.
50. What is the benefit of collapsing white space?
Collapsing white space in HTML means the browser automatically treats multiple spaces, tabs, and line breaks as a single space. This helps improve the appearance and readability of web pages.
Benefits of Collapsing White Space:
- Improves Readability: Prevents unnecessary gaps and spaces in the displayed content, making text easier to read.
- Keeps the Layout Clean: Maintains a neat and organized webpage structure without extra spacing issues.
- Reduces Code Complexity: Developers can format HTML code with spaces and line breaks for better understanding without affecting the webpage output.
- Provides Consistent Display: Ensures that content appears similarly across different browsers and devices.
- Optimizes Web Pages: Helps browsers render web pages more efficiently by ignoring unnecessary white spaces.
51. What is the connection between border and rule attributes?
The border attribute in HTML is used to specify the thickness of a table border. When the border value is greater than 0, borders are displayed around the table and its cells.
The rules attribute is used to control the inner borders between table rows and columns. It works only when the border attribute is enabled. The rules attribute can have values such as all, rows, cols, and none.
52. What are the limitations of text field size?
The default size of a text field in HTML is usually around 20 characters, but it can be changed using the size attribute. However, the visible size of the text field does not limit the number of characters a user can enter.
To restrict the number of characters, the maxlength attribute is used. The actual display size may also vary depending on the browser and screen size.
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53. What is HTML SVG?
HTML SVG is a two-dimensional vector graphics format. An X, Y coordinate system is utilized for vector diagrams such as pie charts and 2-dimensional graphs. XML text files define SVG pictures and their actions.
Syntax:
<!DOCTYPE html>
<html>
<body>
<h2>HTML SVG example</h2>
<svg width="400" height="400">
<circle cx="50" cy="50" r="40" stroke="black" stroke-width="6" fill="red" />
</svg>
</body>
</html>54. What is a canvas element in HTML5?
The <canvas> element in HTML5 is used to draw graphics, animations, charts, and images on a web page using JavaScript. It provides a drawable area where developers can create dynamic visual content.
The <canvas> element itself only creates the drawing area, while JavaScript is used to draw shapes, lines, text, and other graphics inside it.
Example:
<canvas id="myCanvas" width="300" height="200"></canvas>In this example, a canvas area with a width of 300 pixels and a height of 200 pixels is created.
55. What is the use of a figure tag in HTML?
It is one of the top HTML interview questions that can be asked of experienced professionals.
The figure tag includes a photograph in a document on a web page. It manages a collection of diagrams, images, code listings, and embedded material.
Syntax:
<p>The Taj Mahal is widely recognized as "The jewel of Muslim art in India.”</p>
<figure>
<img src="htmlpages/images/tajmahal.jpg" alt="Taj Mahal"/>
</figure>56. What are the logical and physical tags in HTML?
In HTML, tags are mainly divided into logical tags and physical tags based on their purpose and appearance.
Logical Tags
Logical tags describe the meaning or importance of the text without focusing on its appearance. These tags help improve semantic structure and accessibility.
Examples:
- <strong> – Indicates important text
- <em> – Emphasizes text
- <blockquote> – Defines quoted content
- <cite> – Represents a citation
Physical Tags
Physical tags define how the text should appear on the webpage. These tags focus mainly on visual presentation.
Examples:
- <b> – Displays bold text
- <i> – Displays italic text
- <u> – Underlines text
- <big> – Displays larger text
For Example:
<strong>Important Text</strong>
<b>Bold Text</b>57. What is the benefit of grouping multiple checkboxes together?
Grouping multiple checkboxes together in HTML helps organize related options and allows users to select more than one choice from a set of options. It improves form structure, readability, and user experience.
Benefits of Grouping Multiple Checkboxes:
- Better Organization: Related options can be grouped together in a meaningful way.
- Multiple Selections: Users can select more than one option at the same time.
- Improved User Experience: Makes forms easier to understand and use.
- Easy Data Handling: Helps developers process related form data more efficiently.
For Example:
<input type="checkbox" name="skill" value="HTML"> HTML
<input type="checkbox" name="skill" value="CSS"> CSS
<input type="checkbox" name="skill" value="JavaScript"> JavaScript58. Which are the best HTML editors?
These are some of the most used HTML editors:
- VS Code
- WebStorm
- Sublime Text
- Notepad++
- Brackets
So, these are the top HTML interview questions and answers for beginners and intermediate-level professionals. This set of questions will help you prepare confidently and crack your interview easily.
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Advanced-Level HTML Interview Questions with Answers
Below are the HTML interview questions for experienced professionals to help you improve your knowledge, strengthen concepts, and prepare confidently for technical interview rounds:
59. What are deprecated tags in HTML?
Deprecated tags in HTML are tags that are no longer recommended for use in modern HTML versions, especially HTML5. These tags may still work in some browsers, but developers are advised to use CSS or newer HTML elements instead.
Deprecated tags were mostly used for styling and formatting purposes, which are now handled more efficiently using CSS.
| Deprecated Tag | Purpose |
| <font> | Used to define font size, color, and style |
| <center> | Used to center content |
| <big> | Used to display larger text |
| <strike> | Used to display struck-through text |
| <frameset> | Used to define frames in a webpage |
Example:
<center>This is centered text</center>In modern web development, CSS is preferred instead of deprecated HTML tags.
60. What is the difference between strong and b tags in HTML?
Here is a tabular comparison of <strong> and <b> tags in HTML:
| <strong> Tag | <b> Tag |
| The <strong> tag is used to indicate important text. | The <b> tag is used to make text bold visually. |
| It provides semantic meaning to the content. | It mainly changes the appearance of the text. |
| Screen readers emphasize the text inside the <strong> tag. | The <b> tag does not provide semantic importance. |
| Used for important warnings or key information. | Used only for styling or highlighting text visually. |
61. What is the difference between em and i tags in HTML?
Here is a tabular comparison of <em> and <i> tags in HTML:
| <em> Tag | <i> Tag |
| The <em> tag is used to emphasize important text. | The <i> tag is used to display text in italic style. |
| It provides semantic meaning to the content. | It mainly changes the visual appearance of the text. |
| Screen readers give extra emphasis to the text inside the <em> tag. | The <i> tag does not provide semantic importance. |
| Used when the meaning or tone of the sentence needs emphasis. | Used for styling text such as foreign words, technical terms, or titles. |
62. What is responsive web design in HTML?
Responsive web design is an approach used to create web pages that automatically adjust and display properly on different screen sizes and devices, such as mobiles, tablets, and desktops.
It helps improve user experience by making websites flexible and easy to use on all devices. Responsive design is commonly achieved using HTML, CSS media queries, flexible layouts, and responsive images.
Benefits of Responsive Web Design:
- Improves website usability on different devices
- Provides a better user experience
- Reduces the need for separate mobile websites
- Helps websites adapt to different screen resolutions
Example:
<meta name="viewport" content="width=device-width, initial-scale=1.0">63. What is the viewport meta tag in HTML?
The viewport meta tag in HTML is used to control how a web page is displayed on different devices and screen sizes. It helps make web pages responsive and mobile-friendly.
The viewport tag tells the browser how to adjust the page width and scaling according to the device screen. It is placed inside the <head> section of an HTML document.
Example:
<meta name="viewport" content="width=device-width, initial-scale=1.0">Common Properties:
- width=device-width – Sets the page width according to the device screen width.
- initial-scale=1.0 – Sets the initial zoom level when the page is first loaded.
64. What are audio and video tags in HTML5?
HTML5 introduced the <audio> and <video> tags to embed audio and video files directly into web pages without using external plugins. These tags make it easier to add multimedia content to websites.
<audio> Tag
The <audio> tag is used to add sound files such as music or recordings to a web page.
Example:
<audio controls>
<source src="audio.mp3" type="audio/mpeg">
</audio><video> Tag
The <video> tag is used to display video content on a web page.
Example:
<video width="320" height="240" controls>
<source src="video.mp4" type="video/mp4">
</video>Benefits of HTML5 Audio and Video Tags:
- No external plugins are required
- Supports multimedia directly in browsers
- Provides built-in playback controls
- Improves user experience on websites
65. What are custom data-* attributes in HTML5?
Custom data-* attributes in HTML5 are used to store extra custom information inside HTML elements. These attributes allow developers to attach additional data to elements without affecting the page layout or functionality.
All custom data attributes begin with data- followed by a custom name. They are commonly used with JavaScript to store and access custom values.
Example:
<div data-user="Mohit" data-role="admin">
User Information
</div>In this example, data-user and data-role store custom information related to the element.
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66. What is the difference between LocalStorage and SessionStorage objects?
Here is a tabular comparison of LocalStorage and SessionStorage objects in HTML to understand the differences easily:
| LocalStorage | SessionStorage |
| LocalStorage stores data permanently until it is manually removed. | SessionStorage stores data only for the duration of the browser session. |
| Data remains available even after closing the browser. | Data is cleared automatically when the browser tab is closed. |
| It has a larger storage lifetime. | It has a temporary storage lifetime. |
| Data can be accessed from different tabs of the same browser. | Data is accessible only within the same browser tab. |
| Used for storing long-term user data and preferences. | Used for storing temporary session-related data. |
67. What are the best practices for writing clean and semantic HTML code?
Clean and semantic HTML code improves website readability, accessibility, SEO, and maintainability. It helps browsers, developers, and search engines understand the structure and purpose of the content more effectively.
Some best practices for writing clean and semantic HTML code are:
- Use semantic tags like <header>, <section>, <article>, and <footer>
- Keep the code properly indented and organized
- Use meaningful class and id names
- Write proper heading structure from <h1> to <h6>
- Add alt attributes to images
- Avoid unnecessary tags and inline styling
- Use comments where necessary for better understanding
68. How do you show different language versions of a webpage?
Different language versions of a webpage can be shown by using the hreflang attribute inside the <link> tag. It helps search engines understand the language and regional targeting of a webpage.
The hreflang attribute is placed inside the <head> section of the HTML document and is mainly used for multilingual websites.
Example:
<link rel="alternate" hreflang="en" href="https://example.com/en/">
<link rel="alternate" hreflang="fr" href="https://example.com/fr/">In this example, one link is for the English version of the webpage, while the other is for the French version.
69. What is the <output> tag in HTML?
The <output> tag in HTML is used to display the result of a calculation or user action. It is commonly used in forms along with JavaScript to show dynamic output values.
The <output> element represents the result generated by input elements such as sliders, text fields, or calculations.
Example:
<form oninput="result.value=parseInt(a.value)+parseInt(b.value)">
<input type="number" id="a" value="10"> +
<input type="number" id="b" value="20"> =
<output name="result"></output>
</form>In this example, the <output> tag displays the sum of the two input values.
70. What is ARIA, and how do you use it?
ARIA stands for Accessible Rich Internet Applications. It is a set of attributes used to improve the accessibility of web pages, especially for users who rely on screen readers and assistive technologies.
ARIA helps provide additional information about HTML elements when standard HTML elements are not enough to describe their purpose or behavior.
Common ARIA Attributes:
- aria-label – Provides a label for an element
- aria-hidden – Hides content from screen readers
- aria-expanded – Indicates whether an element is expanded or collapsed
- role – Defines the role of an element
Example:
<button aria-label="Close Menu">
X
</button>In this example, the aria-label attribute helps screen readers identify the purpose of the button.
71. How do you lazy-load images and control loading priority?
Lazy loading in HTML is used to delay the loading of images until they are needed, usually when they come into the visible area of the webpage. This helps improve page loading speed and performance.
The loading attribute is used to enable lazy loading, while the fetchpriority attribute helps control the loading priority of images.
Lazy Loading Example:
<img src="image.jpg" alt="Nature" loading="lazy">In this example, the image loads only when it becomes visible on the screen.
Loading Priority Example:
<img src="banner.jpg" alt="Banner" fetchpriority="high">In this example, the image is given a high loading priority so it loads faster.
72. What is the tabindex attribute?
The tabindex attribute in HTML is used to control the order in which elements receive focus when the user presses the Tab key. It helps improve keyboard navigation and accessibility on web pages.
The tabindex attribute can be added to form elements, links, buttons, and other HTML elements.
Values of tabindex:
- tabindex="0" – Element follows the normal tab order.
- tabindex="-1" – Element can be focused programmatically but is skipped in tab navigation.
- tabindex="1" or higher – Defines a custom tab order.
Example:
<input type="text" tabindex="1">
<button tabindex="2">Submit</button>In this example, the text field receives focus first, followed by the button when the Tab key is pressed.
FAQs About HTML Interview Questions
Preparing for HTML interview questions helps you strengthen your web development basics, improve confidence, and understand commonly asked concepts. It also increases your chances of performing well and getting selected in technical interviews.
Common interview questions in HTML usually cover tags, elements, forms, semantic HTML, tables, lists, HTML5 features, hyperlinks, and multimedia. Interviewers mainly focus on checking your understanding of core web development concepts.
Interviewers commonly ask about semantic tags, audio and video elements, canvas, local storage, forms, APIs, responsive design, and multimedia support in HTML5. These concepts are important in modern web development interviews.
Yes, many companies ask practical HTML coding questions to test your understanding of webpage structure, forms, semantic elements, tables, and responsive layouts. Practical questions help interviewers evaluate your real-world development skills.
Web developers are in high demand these days. So, there are ample perks individuals can experience while choosing HTML.
- Make things more accessible
- Better collaboration
- Develop a unique website
- Build a career in web development
- Become a front-end web developer
Well, a web developer's salary differs from region to region. For instance, a web developer's salary in India is initially Rs 35,000 and keeps increasing with experience.
There are plenty of reasons to build a career in web development, including:
- A huge demand these days
- Greater flexibility
- Earn a better living
- Get diverse learning & growth opportunities
- Web developers are creative
Yes, semantic HTML questions are important because they test your understanding of meaningful webpage structure, accessibility, SEO, and clean coding practices. Interviewers prefer developers who follow modern semantic HTML standards properly.
Common mistakes include weak understanding of basics, poor communication, lack of practical coding knowledge, ignoring problem-solving approaches, and not preparing projects properly. Practicing technical questions and revising concepts can help improve interview performance.
Experienced professionals are usually asked advanced HTML questions related to accessibility, responsive design, semantic structure, performance optimization, multimedia integration, APIs, and best practices used in real-world front-end development projects.
HTML and CSS knowledge can help you crack beginner-level web development interviews, but learning JavaScript, responsive design, and basic frameworks will improve your opportunities and help you grow professionally faster.
Practicing HTML interview questions improves confidence by helping you understand important concepts, answer technical questions clearly, avoid confusion during interviews, and become more comfortable with real interview situations and discussions.
The major key skills required to become a good web developer are:
- HTML
- CSS
- JavaScript
- jQuery
- Bootstrap
- Computer literacy
- Strong numeracy skills
- Creative ability
- Attention to detail
- Strong communication skills
- Excellent problem-solving skills
- A logical approach to work
- A keen interest in technology
Conclusion
Preparing for web development interviews becomes easier when you have a strong understanding of HTML concepts and practical coding skills. Learning commonly asked questions helps improve confidence and gives you a better understanding of real interview patterns and technical expectations.
This guide on HTML interview questions and answers covers important topics for both beginners and experienced developers. Regular practice and proper preparation can help you improve problem-solving skills and perform confidently in technical and front-end development interviews.
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