HTML Interview Questions and Answers for Beginners
Although the exact need may differ based on the profession and industry, HTML skills are still very much in demand in the current job market. The reason for this is that HTML serves as the Web’s core and is necessary for front-end development, cross-platform compatibility, and ongoing evolution. Utilize this list of top 40 HTML interview questions and answers to review your skills. Check out our HTML course syllabus to kickstart your learning journey.
HTML Interview Questions and Answers for Freshers
Here are the basic HTML questions for interview:
1. What does HTML stand for?
Hyper Text Markup Language is referred to as HTML. The common markup language used to create Web pages is HTML. The structure of a Web page is described by HTML.
2. What is the purpose of the iframe tag?
You can embed material from another HTML document into your current page using the <iframe> tag, often known as an inline frame.
3. Write down the basic structure of an HTML document?
<!DOCTYPE html> (Document Type Declaration)
<html> (Root element)
<head> (Contains meta-information about the page)
<title> (Defines the title that appears in the browser tab)
<meta> (Provides metadata about the HTML document)
<body> (Contains the visible content of the page)
4. What are the main sections of an HTML document?
The head, body, and major content are an HTML document’s primary sections:
- Head: Provides the document’s title, author, description, and keywords, among other details. is the head tag.
- Body: Contains the information in the document. is the body tag.
- Main Content: The element specifies the document’s primary material. The tag’s content must be specific to the document.
5. What is the difference between block-level and inline elements?
| Block-Level Elements | Inline Elements |
| Start on a new line. | Do not start on a new line. |
| Take up the full width available. | Only take up the necessary width. |
| Examples: <p>, <h1>, <div>, <ul>, <ol> | Examples: <span>, <a>, <b>, <i> |
6. What is the <div> tag used for?
An HTML document’s division or section is defined by the <div>tag. HTML elements are contained within the <div> tag and can be modified using CSS or altered with JavaScript. The class or id attribute makes styling the <div> tag simple.
7. What is the purpose of the <span> tag?
A portion of a text or document can be marked up using the <span> tag, an inline container. The class or id attribute in JavaScript or CSS makes it simple to style the <span> tag.
8. How do you create a hyperlink in HTML?
Using the <a> and </a> tags, you can build a hyperlink in HTML by adding the link’s URL in the <a href=” “>:
- To identify the beginning of the hyperlink, use the <a> tag.
- In the <a href=” “>, include the link’s URL.
- To indicate the end of the hyperlink, use the </a> tag.
- Between the <a> and </a> tags, add whatever text you would like to show as the hyperlink.
Example: <a href=”https://www.example.com”>Visit Example</a>
9. What is the purpose of the <img> tag?
Images can be embedded into a web page using HTML’s <img> tag:
Purpose: The <img> tag links an image to the web page by creating a holding area for it.
Attributes: There are two necessary properties for the <img> tag:
src: gives the location of the image
alt: specifies a different text to show in the event that the image cannot be displayed.
Self-closing: The <img> tag lacks a closing tag since it is a self-closing element.
Image sources: Various sources, including files on a website or URLs from other websites, can display images.
Image formats: Image file formats include vector, compressed, and uncompressed.
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10. What is the purpose of the alt attribute in the <img> tag?
When an image cannot be displayed, it can be replaced with text using the alt attribute in the img tag. This is crucial for accessibility and benefits people who are unable to see the image, like those who use text-based web browsers or have visual impairments.
Alternative text for the image is provided via the alt attribute, which is crucial for search engine optimization (SEO) and accessibility (screen readers).
11. How do you create a list in HTML?
- In an ordered list, each list item should have a <ol> tag and a <li> tag.
- Unordered list: For each list item, use the <ul> tag in conjunction with the <li> tags.
12. What are some common HTML5 semantic elements?
Some common HTML semantic elements are <header>, <footer>, <nav>, <article>, <aside>, <section>, <main>, and so on.
13. What is the purpose of the <DOCTYPE> declaration?
The doctype declaration instructs a browser on how to read and present HTML text.
Avoid going into “quirks mode”: A rendering mode known as “quirks mode” that is incompatible with the browser is prevented by the doctype declaration. Rather, it makes sure that the browser complies with the necessary requirements.
Specify the version and type of the document: The Document Type Definition (DTD) for browsers is specified by the doctype declaration. This provides a certain HTML version’s formal definition.
Verify backward compatibility: Backward compatibility is ensured in part by the doctype declaration.
Make it easier to validate against standards: Validation against standards is facilitated by the doctype declaration. Without the doctype declaration, HTML validators are unable to determine which standard to compare your code against.
14. What is the purpose of the <meta> tag?
Code tags known as “meta tags” give information about a webpage and aid in the comprehension of its content by search engines and browsers:
Meta Description: A succinct synopsis of the informational and engaging content on the page. This description can occasionally be found in search results.
Meta Title: The meta title provides the page’s title to search engines, web browsers, and social networking platforms.
Robots and Googlebot: It regulates how the page is indexed and crawled by search engines. Whereas the <meta name=”googlebot”> tag is unique to Google, the <meta name=”robots”> tag is applicable to all search engines.
Viewport: It modifies the way the website appears on various screen sizes. The HTML is made to adapt to the width of the device’s screen thanks to the <meta name=”viewport” content=”width=device-width, initial-scale=1.0″> tag.
15. What is the purpose of the placeholder attribute in an input field?
An input field’s placeholder property gives the user a quick suggestion as to what kind of data should be submitted into the field.
- It is a brief word or phrase that shows up in the input box when the field is left blank.
- When the user inputs a value in the field, the placeholder text is eliminated.
16. What is the purpose of the <title> tag?
A title tag’s objectives are to:
Assist visitors in understanding the page: Users can better grasp the purpose of the website and what to anticipate when they click on it due to the title tag.
Give search engines information: Search engines receive contextual information about the page from the title tag. This aids search engines in comprehending the page and aligning it with the purpose of users’ queries.
Improve SEO (Search Engine Optimization): A key element of SEO strategy is the title tag. One of the first factors that search engines look at when deciding how to rank a page is this.
Enhance the user experience: The user experience depends on the title tag. In search results, it’s frequently the first section a user sees of a website.
17. What is the difference between id and class attributes?
The primary distinction between class and ID properties in HTML and CSS is that a class can be used to group and style many items, but an ID uniquely identifies a single element.
ID: A particular element on a page can be uniquely identified by its ID attribute. Only one ID may be assigned to each element, and an infinite number of styles may be applied to each ID. The “#” sign is used by IDs in CSS.
Class: Elements that share similar traits, like styles or functionality, are grouped together using a class attribute. You can apply the same class to more than one element because classes are not unique. Case matters when naming classes.
18. What is the purpose of the <form> tag?
Creating a form on a webpage that gathers user input and transmits it to a server for processing is the goal of the HTML form tag:
Text fields, checkboxes, drop-down menus, and submit buttons are just a few of the input items that can be contained within the form tag.
When the user hits the “Submit” button or, in the absence of a “Submit” button, the “Enter” key, the data is transmitted to the server.
19. What are some common input types in HTML forms?
Some common input types in HTML forms are text, password, email, number, radio, checkbox, submit, button, file, and so on.
20. How do you create a dropdown list in HTML?
To create a dropdown list in HTML, we can use the <select> and <option> tags.
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HTML Interview Questions and Answers for Experienced Professionals
Here are the advanced HTML interview questions and answers:
21. What is the purpose of HTML?
HyperText Markup Language (HTML) is used to organize a web page’s content and design:
Structure: Content on a web page can be organized using HTML into paragraphs, lists, tables, and images.
Display: HTML instructs a web browser on how to present multimedia, including text and images.
Accessibility: HTML uses text, graphic styling, and search parameters to make online pages accessible to users.
Data Entry: Through forms, consumers can submit data online thanks to HTML5.
When creating websites, HTML is frequently used with JavaScript and Cascading Style Sheets (CSS). All of the main web browsers employ HTML, which was formally recommended by the World Wide Web Consortium (W3C).
22. How may a table be made in HTML?
For table rows, use <tr>; for table headers, use <th>; and for table data cells, use <table>.
The following HTML tags can be used to create a table:
- <table>: Describes the table and indicates its start and finish points.
- <tr>: Table row definition.
- <th>: Table header definition.
- <td>: Table cell definition.
Example:
<table>
<tr>
<td>Column 1</td>
<td>Column 2</td>
<td>Column 3</td>
</tr>
<tr>
<td>Column 1</td>
<td>Column 2</td>
<td>Column 3</td>
</tr>
</table>
23. What is the purpose of the required attribute in an input field?
Before submitting a form, a user must enter a value in an input field, as indicated by HTML’s required attribute:
Purpose: Before submitting a form, the necessary property makes sure the user has filled out all the required fields.
How it works: If a necessary field is left empty when the required property is present, the browser stops the form from being submitted. An error message will also appear in the browser.
24. What is the purpose of the disabled attribute in an input field?
When an input element is disabled, it cannot be used or clicked. To prevent a user from using the <input> element until another condition is satisfied (such as checking a box, etc.), the disabled property can be specified.
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25. What is the use of the readonly attribute in an input field?
One type of boolean attribute is readonly. It indicates that an input field is read-only when it is present. Although a user can tab to, highlight, and copy content from a read-only input field, they are unable to change it.
26. What function does an input field’s maxlength attribute serve?
The maximum string length that a user can enter into a <textarea> or <input> is specified by the maxlength attribute.
An integer value of 0 or greater must be present in the attribute. UTF-16 code units, which correspond to the number of characters in the majority of scripts, are used to quantify length.
27. What do input fields’ min and max characteristics serve as?
HTML input fields’ min and max properties define the lowest and maximum values that can be entered.
- min: Indicates the lowest value that can be entered.
- max: Indicates the highest value that can be entered.
28. Why is the step attribute in input fields used?
In HTML input fields, the step attribute defines the granularity of the value or the space between legal numbers:
The interval is set by the step attribute for pressing the spinner buttons up and down, using a range to move a slider left and right, and verifying the types of dates.
29. What does a checkbox’s checked attribute serve as?
A checkbox is pre-selected via the checked attribute. It is a boolean attribute that has been checked.
When it is present, it indicates that when the page loads, a <input> element should be pre-selected (checked). Both <input type=”checkbox”> and <input type=”radio”> can be used with the checked attribute.
30. What use does a radio button’s value property serve?
Which radio button is picked when a form is submitted is determined by the value property in the radio button’s HTML input element:
- Purpose: Each radio button in a group is individually identified by its value attribute, which is a string. When the form is submitted, the value is delivered to the server but is not visible to the user.
- How it works: The value of the value property and the radio button’s name are transmitted to the server when a button is chosen. No information is sent if the radio button is not chosen.
- Best practices: A tag should be added to a radio button group to make it easier to access.
31. What is the textarea tag used for?
Comments, feedback, and messages are examples of multi-line text input that can be gathered from users using the HTML <textarea> tag.
It is frequently utilized in forms and works best when users are required to enter more than one line of text.
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32. What is the <label> tag used for?
By linking a label to a form control, the HTML <label> tag helps to improve the accessibility and usability of forms.
The value of a form field is indicated using the <label> tag. To choose or concentrate on the related input field, users can click on the label. Users, particularly those who use assistive technology, can engage with forms more easily as a result.
33. What is the style attribute used for?
The HTML style attribute defines an element’s color, font, size, and other appearance in a web browser.
Syntax: The style attribute is expressed in the syntax <tagname style=”property:value;”>. The value is a CSS value, and the property is a CSS property.
Inline Styling: Any globally specified styles are overridden when the style property is used inline.
External style sheets: In order to maintain clear and manageable code, it is more customary to style elements using an external CSS style sheet. The <link> item contains the syntax for using an external style sheet.
Supported Browsers: Browsers including Google Chrome, Mozilla Firefox, Internet Explorer, Opera, and Safari can use the style attribute.
34. What is the class attribute used for?
HTML elements with similar traits or styles can be grouped together using the class attribute. It enables you to apply the same behaviors or styles to several elements at once.
Using the class attribute, one can:
- Apply CSS styles: You can apply the same styles to all items belonging to a class by defining CSS rules for a particular class name.
- Use JavaScript functionality: Modify HTML components of a given class using JavaScript.
- Encourage the reuse of code: Use the same behaviors or styles for several items on your website.
- Boost development efficiency: Make sure your HTML document has a consistent design throughout.
35. What does the id attribute serve as?
An HTML element can be uniquely identified using the id attribute:
- Identifying elements: When linking, scripting, or style, a single element is identified using the id attribute.
- Styling: CSS styles a particular element using the id attribute.
- Manipulating elements: JavaScript uses the id attribute to change an element with a certain id.
- Creating bookmarks: HTML bookmarks can be made using the id attribute.
- Navigating documents: To get to a particular location within a document, using the id property as a bookmark.
36. What distinguishes internal CSS from external CSS?
- Internal CSS: The <style> tag is used to define styles inside the HTML document’s <head> section.
- External CSS: Using the <link> tag, styles that are defined in a different CSS file are connected to the HTML content.
37. What are some common CSS properties?
Some of the common CSS properties are color, background-color, font-size, font-family, width, height, margin, padding, border, display, position, float, and so on.
38. What does the!DOCTYPE declaration serve as?
Every HTML document must begin with the doctype declaration, a mandatory preamble. <!DOCTYPE html> is how it is written.
The browser will make an educated guess as to how to render your page if you leave out the doctype declaration, which may produce unexpected outcomes.
39. Write some HTML5 features.
Some HTML5 features are:
- Semantic HTML5 elements (e.g., <header>, <footer>, <nav>, <article>)
- Audio and video support (<audio>, <video>)
- Canvas for 2D graphics
- Geolocation API
- Local Storage
- Drag and Drop
40. What are some best practices for writing HTML?
The following are some guidelines for writing HTML:
- Use semantic elements: Instead of just describing the content’s appearance, use HTML tags that explain its structure and significance.
- Keep it simple: To make your HTML text easy to read and comprehend, keep it simple and clear.
- Employ lowercase letters: When naming elements, attributes, and values, use lowercase letters.
- Use double quotes: Don’t use single quotes or quotes that aren’t there at all.
- Indent nested elements: For each degree of indentation, add two spaces.
- Use a doctype: Declare a doctype at all times.
- Use a catchy title: An effective page title aids in both search engine optimization and user comprehension of your website’s content.
- Use descriptive meta tags: Make use of informative meta tags.
- Use heading elements wisely: Make good use of header components.
- Add an alt attribute to images: Every image needs an alt attribute.
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Conclusion
This list of top 40 HTML interview questions and answers give you a solid starting point for learning HTML. To become proficient with the basics, don’t forget to write HTML code and try out various elements and properties. Hone your skills with our HTML training in Chennai.
