Top 250 HTML Interview Questions and Answers

Create a simple login page in HTML

• Use <form> element to create a form for login

• Include <input> elements for username and password

• Add a <button> element for submitting the form

• Use CSS for styling the login page

IDs are unique identifiers for elements, while classes can be used to group multiple elements together.

• IDs are unique within a page, while classes can be used multiple times.

• IDs are used for specific styling or scripting purposes, while classes are used for styling multiple elements.

• IDs are referenced in CSS with a # prefix, while classes are referenced with a . prefix.

Radio button code in HTML

• Use <input type='radio'> tag for radio buttons

• Set the 'name' attribute to group radio buttons together

• Use the 'value' attribute to specify the value of each radio button

To include the htmlblock in AEM, use the cq:include tag in the component's jsp file.

• Use the cq:include tag in the component's jsp file to include the htmlblock.

• Specify the path to the htmlblock using the 'path' attribute in the cq:include tag.

• Make sure the htmlblock is located in the appropriate location in the AEM repository.

Class can be used multiple times on a page, while id should be unique.

• Class can be used multiple times on a page, while id should be unique

• Class is denoted by a period (.) in CSS, while id is denoted by a hash (#)

• Class is used for styling multiple elements, while id is used for targeting a specific element

The style attribute is used to add inline styles to HTML elements.

• Allows for customization of individual elements

• Can be used to change properties like color, font size, padding, etc.

• Example: <p style='color: red; font-size: 16px;'>This is a red paragraph</p>

HTML containers are elements used to group and structure content on a webpage.

• Div - generic container element

• Span - inline container element

• Section - groups related content

• Header - contains introductory content

• Footer - contains footer content

Base href in index.html is used to specify the base URL for all relative URLs in the document.

• Base href is used to set the base URL for all relative URLs in the document.

• It is helpful when working with multiple directories or when the website is hosted on a subdirectory.

• Example: <base href='https://www.example.com/'>

Nested HTML page example

• Use <div> tags to create nested elements

• Indent child elements to show hierarchy

• Example: <div> <p> This is a paragraph </p> </div>

To create HTML code in Visual Studio, you can simply create a new HTML file and start writing your code.

• Open Visual Studio and create a new HTML file

• Start writing your HTML code within the file

• Use the HTML tags and attributes to structure your content

• Save the file with a .html extension

• Preview your HTML code in a web browser

Header tags are HTML elements used to define headings and subheadings on a webpage.

• Header tags range from <h1> to <h6>, with <h1> being the most important and <h6> the least important.

• They help search engines understand the structure and hierarchy of content on a webpage.

• Header tags also improve accessibility for users by providing clear organization and navigation.

• Example: <h1>This is a main heading</h1>, <h2>This is a subheading</h2>

Async and defer attributes are used in HTML script tags to control when and how scripts are loaded and executed.

• Async attribute allows the script to be downloaded asynchronously without blocking the HTML parsing.

• Defer attribute defers the script execution until the HTML parsing is complete.

• Async scripts can be executed out of order, while defer scripts are executed in the order they appear in the HTML.

Tables in HTML are designed using the <table> tag along with <tr> for rows and <td> for data cells.

• Use the <table> tag to create a table structure

• Use <tr> for table rows

• Use <td> for table data cells

• You can also use <th> for table headers

A header is a piece of information at the beginning of a data packet or file that contains details about the data.

• Headers are used in communication protocols to provide information about the data being transmitted.

• Headers typically include metadata such as the source and destination addresses, data type, and size.

• In HTTP, headers are used to pass additional information between the client and server, such as cookies or authentication tokens.

To validate text displayed in HTML tag, use automation tools like Selenium to locate the element and verify the text content.

• Locate the HTML element using appropriate locators like ID, class name, XPath, etc.

• Retrieve the text content of the element using getText() method.

• Compare the retrieved text with the expected text using assertion methods.

• Use automation tools like Selenium WebDriver to automate the validation process.

The form tag in HTML is used to create an interactive form for user input.

• The form tag is used to define an HTML form that allows user input.

• It has attributes like action (URL where form data is submitted), method (GET or POST), and enctype (encoding type).

• Input elements like text fields, checkboxes, radio buttons, and submit buttons are placed inside the form tag.

• Example: <form action='/submit_form' method='POST'>...</form>

CSS can be included in HTML in three main ways: inline, internal, and external.

• Inline CSS - using the style attribute within an HTML element

• Internal CSS - using the <style> tag within the <head> section of the HTML document

• External CSS - linking an external CSS file to the HTML document using the <link> tag

Hyperlink is a clickable text, image, or button that redirects to another webpage, while anchor link is a specific type of hyperlink that directs to a specific section within the same webpage.

• Hyperlink can redirect to any webpage, while anchor link directs to a specific section within the same webpage.

• Hyperlinks are typically displayed as underlined text or images, while anchor links are often used for navigation within a webpage.

• Example of a hyperlink: <a href='https://www.e...read more

To center a div, use CSS properties like display, margin, and text-align.

• Use 'display: flex;' and 'justify-content: center;' for horizontal centering

• Use 'margin: 0 auto;' for horizontal centering with block elements

• Use 'text-align: center;' for inline elements like text or images

To create a single web page, you need to write HTML, CSS, and possibly JavaScript code.

• Start by creating a new HTML file and adding the necessary structure with <html>, <head>, and <body> tags.

• Write the content of the page using HTML elements like <h1>, <p>, <img>, etc.

• Style the page using CSS to make it visually appealing.

• You can also add interactivity using JavaScript for things like form validation or dynamic content.

• Test the page in different browsers to ensure compatibil...read more

HTML helpers are functions in ASP.NET MVC that generate HTML markup for views

• HTML helpers are used to create HTML elements in ASP.NET MVC views

• They help in reducing the amount of HTML code that needs to be written manually

• Examples include Html.TextBox(), Html.DropDownList(), Html.ActionLink()

To change language in HTML, use the lang attribute in the opening <html> tag.

• Add the lang attribute to the <html> tag with the desired language code (e.g. lang='en' for English).

• The lang attribute helps search engines and screen readers understand the language of the content.

• Example: <html lang='en'>

A favicon is a small icon displayed in the browser tab next to the page title. HTML is a markup language used to create web pages.

• Favicons are typically 16x16 pixels in size and are saved as .ico files.

• They help users easily identify and navigate to a specific website.

• HTML stands for HyperText Markup Language and is used to structure content on web pages.

• HTML tags are used to define elements such as headings, paragraphs, links, images, and more.

HTML is a markup language used for creating web pages.

• <html> - defines the root of an HTML document

• <head> - contains meta-information about the document

• <title> - sets the title of the document

• <body> - contains the visible content of the document

• <h1> - defines a heading

• <p> - defines a paragraph

New input types in HTML5 include color, date, email, number, range, tel, and more.

• Color: Allows users to select a color.

• Date: Provides a date picker for selecting dates.

• Email: Ensures that the input is a valid email address.

• Number: Restricts input to numeric values.

• Range: Allows users to select a value within a specified range.

• Tel: Ensures that the input is a valid telephone number.

The 'div' is a block-level element used for grouping and styling content, while 'id' is a unique identifier used to target specific elements.

• div is a block-level element used for grouping content, while id is an attribute used to uniquely identify an element

• Multiple div elements can have the same class but different ids

• Ids are used for targeting specific elements in CSS or JavaScript

There are 6 HTML heading elements, from h1 to h6.

• There are 6 heading elements in HTML: h1, h2, h3, h4, h5, h6

• The h1 element is the highest level heading and h6 is the lowest level heading

• Heading elements are used to define the structure of a webpage

Html5 tags are used to structure content on web pages.

• header

• footer

• nav

• section

• article

• aside

• main

• figure

• figcaption

Images can be added in HTML using the <img> tag with the src attribute specifying the image file path.

• Use the <img> tag to add images in HTML

• Specify the image file path in the src attribute

• Add alt text in the alt attribute for accessibility

• Set the width and height attributes for image dimensions

ID is unique identifier for a single element, class is used to group multiple elements with same styling.

• ID is unique within a page, can only be used once per element

• Class can be used multiple times on different elements

• ID is selected with # in CSS, class with .

td tag is used to define a cell in a table, while tr tag is used to define a row in a table.

• td tag is used within a tr tag to define individual cells in a table

• tr tag is used to group td tags together to form a row in a table

• td tags can contain various content such as text, images, links, etc.

• tr tags can contain multiple td tags to create a row with multiple cells

HTML ordered and unordered list example

• Use <ol> tag for ordered list

• Use <ul> tag for unordered list

• Use <li> tag for each list item

• Example: <ol><li>Item 1</li><li>Item 2</li></ol>

• Example: <ul><li>Item A</li><li>Item B</li></ul>

Semantic tags in HTML are special tags that provide meaning to the content they enclose.

• Semantic tags help search engines and screen readers understand the structure of a webpage.

• Examples of semantic tags include <header>, <footer>, <nav>, <article>, <section>, <aside>, <main>, <figure>, <figcaption>.

• Using semantic tags improves SEO and accessibility of a website.

Inline and block level elements are two types of HTML elements with different display behaviors.

• Inline elements flow in the same line as surrounding content, while block level elements take up the full width available.

• Examples of inline elements include <span>, <a>, and <strong>.

• Examples of block level elements include <div>, <p>, and <h1>.

External javascript file can be linked in HTML using the <script> tag with the src attribute.

• Use the <script> tag with the src attribute to specify the path of the external javascript file.

• Example: <script src='path/to/external.js'></script>

• The <script> tag should be placed inside the <head> or <body> section of the HTML document.

role="presentation" is used to indicate that an element should be ignored by assistive technologies.

• Used to remove semantic meaning from an element

• Helps screen readers ignore decorative or redundant content

• Should not be used on interactive elements

HTML is a markup language used for creating web pages. HTTPS is a secure version of HTTP for secure communication over the internet.

• HTML stands for HyperText Markup Language

• It is used to create the structure and content of web pages

• HTML uses tags to define elements such as headings, paragraphs, images, links, etc.

• HTTPS stands for HyperText Transfer Protocol Secure

• It is a secure version of HTTP that encrypts data sent between a website and a user's browser

• HTTPS is used to ensu...read more

HTML main features include structure, content, and semantics. Semantics refers to the meaning and purpose of the content.

• HTML provides structure to web pages through elements like <header>, <footer>, <nav>, etc.

• Content is added to HTML pages using tags like <p>, <img>, <ul>, etc.

• Semantics in HTML refers to using elements that convey meaning, such as <article>, <section>, <aside>, etc.

• Semantic HTML helps improve accessibility, SEO, and overall understanding of the content.

CSS stands for Cascading Style Sheets and HTML stands for HyperText Markup Language.

• CSS - Cascading Style Sheets is used for styling web pages

• HTML - HyperText Markup Language is used for creating the structure of web pages

The HTML boilerplate is a standard template used to start an HTML document.

• Start with <!DOCTYPE html> to declare the document type

• Followed by <html> element to enclose the entire document

• Include <head> and <body> elements for metadata and content respectively

• Add <title> inside <head> to specify the title of the document

• End with </html> to close the document

HTML has three main types of lists: ordered, unordered, and definition lists.

• Ordered lists are numbered lists using <ol> tag.

• Unordered lists are bulleted lists using <ul> tag.

• Definition lists are lists of terms and their definitions using <dl> tag.

Canvas in forms can be of different types like HTML5 Canvas, SVG Canvas, and PDF Canvas.

• HTML5 Canvas allows for drawing graphics using JavaScript

• SVG Canvas is scalable and can be manipulated with CSS

• PDF Canvas is used for generating PDF documents programmatically

Variables in HTML are used to store and manipulate data within a web page.

• Variables in HTML are typically used in conjunction with JavaScript to store and manipulate data.

• They are declared using the 'var' keyword.

• Variables can store various types of data such as strings, numbers, and booleans.

• Example: var name = 'John';

Basic structure of an HTML page includes doctype declaration, html, head, and body tags.

• DOCTYPE declaration specifies the HTML version

• HTML tag wraps the entire content of the page

• Head tag contains meta information, title, and links to external resources

• Body tag contains the visible content of the page

Event propagation determines the order in which event handlers are executed. Div and Section tags have different default display properties.

• Event propagation refers to the order in which event handlers are executed, either bubbling or capturing.

• Immediate propagation stops the event from propagating further.

• Div tag is a block-level element with default display property of 'block'.

• Section tag is a block-level element with default display property of 'block'.

HTML5 introduced new features like semantic elements, audio/video support, canvas for graphics, local storage, and more.

• Semantic elements like <header>, <footer>, <nav>, <article>, <section> for better structure

• Audio and video support with <audio> and <video> tags for embedding media

• Canvas element for drawing graphics and animations using JavaScript

• Local storage for storing data on the client side with localStorage and sessionStorage

• Form enhancements like new input types (ema...read more

There are multiple ways to create a web page, using HTML tags to structure content and CSS attributes to style it.

• Types of web pages can include static, dynamic, responsive, and single-page applications.

• HTML tags are used to define the structure and content of a web page, such as <div>, <p>, <h1>, <img>, etc.

• CSS attributes are used to style the elements on a web page, such as color, font size, margin, padding, etc.

Html entities are special characters that are represented by codes to display correctly in web pages.

• Html entities start with an ampersand (&) and end with a semicolon (;)

• Common html entities include &lt; for <, &gt; for >, and &amp; for &

• Attributes in html specify additional information about an element and are written within the element's start tag

HTML is a markup language used for creating web pages.

• HTML stands for HyperText Markup Language

• It is used to structure content on the web

• HTML tags are used to define elements like headings, paragraphs, links, images, etc.

HTML stands for Hypertext Markup Language and CSS stands for Cascading Style Sheets.

• HTML is used for creating the structure of a webpage using tags like <html>, <head>, <body>, etc.

• CSS is used for styling the webpage by defining colors, fonts, layouts, etc.

• HTML and CSS are essential languages for web development and work together to create visually appealing websites.

HTML version is crucial in web design as it determines the features and capabilities available for creating websites.

• HTML5 is the latest version of HTML, offering new elements and attributes for enhanced web design.

• Different HTML versions may have varying support for modern web technologies like CSS and JavaScript.

• Understanding the HTML version is important for ensuring compatibility and accessibility across different browsers and devices.

HTML container tags are used to group and define sections of content on a webpage.

• The <div> tag is used to group elements together and define a section of content.

• The <span> tag is used to group inline elements together.

• The <section> tag is used to define sections of content within a webpage.

• The <header> tag is used to define a header section within a webpage.

• The <footer> tag is used to define a footer section within a webpage.

1.3.1 refers to the WCAG guideline for identifying input purpose. aria-label is used to provide a visible label for an element, while aria-labelledby is used to reference an element that serves as the label.

• 1.3.1 is a WCAG guideline that focuses on identifying the purpose of input fields for users with disabilities.

• aria-label is used to provide a visible label for an element, making it accessible to screen readers.

• aria-labelledby is used to reference another element on the pa...read more

The inline attribute in HTML is used to specify that a particular element should be displayed inline.

• The inline attribute can be used with elements like <span>, <strong>, <em>, <a>, etc.

• It allows the element to be displayed on the same line as adjacent elements.

• Example: <span inline>Inline element</span>

Inline elements flow in the same line, while block elements take up the full width available.

• Inline elements do not start on a new line and only take up as much width as necessary.

• Block elements start on a new line and take up the full width available.

• Examples of inline elements include <span>, <a>, and <strong>.

• Examples of block elements include <div>, <p>, and <h1>.

HTML is a markup language used for creating web pages.

• HTML stands for HyperText Markup Language

• It is used to structure content on the web

• HTML tags are used to define elements like headings, paragraphs, links, images, etc.

HTML stands for HyperText Markup Language, used for creating and structuring web pages.

• HTML is a markup language used to create the structure of web pages.

• It consists of elements enclosed in tags, such as <html>, <head>, <body>.

• Attributes can be added to elements to provide additional information or functionality, like <img src='image.jpg'>.

• HTML is the foundation of web development and is often used in conjunction with CSS and JavaScript.

HTML is a markup language used for creating web pages, while JavaScript is a programming language used for adding interactivity to web pages.

• HTML is used for structuring content on web pages

• JavaScript is used for adding interactivity and dynamic behavior to web pages

• HTML is not a programming language, but JavaScript is

• Example: <html><head><title>Example</title></head><body><script>document.getElementById('demo').innerHTML = 'Hello World!';</script><p id='demo'></p></body></ht...read more

display block takes up full width, display inline only takes up as much width as necessary

• display block elements start on a new line and take up the full width available

• display inline elements do not start on a new line and only take up as much width as necessary

• display block elements can have margin and padding applied to all four sides, while display inline elements only have left and right margin and padding by default

Sessions store data on the server side while cookies store data on the client side.

• Sessions store data on the server side, usually in a temporary directory or database

• Cookies store data on the client side, in the form of key-value pairs

• Sessions are more secure as the data is not exposed to the client

• Cookies can be easily manipulated by the client, making them less secure

The <b> tag is used to bold text, while the <strong> tag is used to emphasize text with stronger importance.

• The <b> tag is used for stylistic purposes, while the <strong> tag is used for semantic purposes.

• The <b> tag is purely presentational, while the <strong> tag has a stronger meaning in terms of importance.

• Screen readers may interpret <strong> text differently than <b> text.

The number of windows that can be maintained under one page depends on the system's capabilities and resources.

• The number of windows that can be maintained may vary based on the operating system and hardware specifications.

• Factors such as memory, processing power, and the type of application being used can also impact the number of windows that can be maintained.

• For example, a high-end computer with ample resources may be able to maintain multiple windows simultaneously, whil...read more

CSS can be included in HTML using inline, internal, or external methods.

• Use inline CSS by adding the style attribute to HTML elements

• Use internal CSS by placing CSS code within <style> tags in the <head> section of the HTML document

• Use external CSS by linking an external CSS file to the HTML document using the <link> tag in the <head> section

HTML5 is the latest version of the HTML standard, with new features for multimedia, graphics, and interactivity.

• Support for multimedia elements like <video> and <audio>

• Canvas and SVG for graphics rendering

• Improved form controls and validation

• Offline storage capabilities with Local Storage and IndexedDB

• Geolocation API for location-based services

• Web Workers for running scripts in background threads

Tags are used to define the structure of an element in HTML, while elements are the actual components that make up a webpage.

• Tags are enclosed in angle brackets (<>) and define the beginning and end of an element.

• Elements consist of the opening tag, content, and closing tag.

• Example: <p> is a tag that defines a paragraph element, while <p>This is a paragraph</p> is the complete paragraph element.

div is a block-level element while span is an inline element in HTML.

• div is used to create a block-level element that starts on a new line and takes up the full width available, while span is used to create an inline element that does not start on a new line and only takes up as much width as necessary.

• div is typically used for grouping and styling larger sections of content, while span is used for styling smaller parts of text or inline elements within a block-level element....read more

HTML is a markup language used for creating web pages, while programming languages are used for creating software applications.

• HTML stands for HyperText Markup Language

• HTML is used to create the structure and content of a web page

• Programming languages like Java, Python, and C++ are used to create software applications

• HTML uses tags to define elements on a web page, while programming languages use syntax to write code

Semantic elements are HTML tags that provide meaning to the content they enclose.

• Semantic elements help improve SEO by providing search engines with better understanding of the content.

• They also improve accessibility for users with disabilities by providing clearer structure.

• Examples of semantic elements include <header>, <footer>, <nav>, <article>, <section>, <aside>, <main>.

HTML semantic tags are elements that provide meaning to the content they enclose, making it easier for search engines and screen readers to interpret.

• Semantic tags help structure a webpage and improve SEO.

• Examples include <header>, <footer>, <nav>, <article>, <section>, <aside>, <main>, <figure>, <figcaption>.

• They convey the purpose of the content within them.

Attributes in HTML are additional information added to HTML elements to provide more details or control over their behavior.

• Attributes are added within the opening tag of an HTML element

• Attributes consist of a name and a value separated by an equals sign

• Attributes can be used to specify things like colors, sizes, links, and more

XML and HTML are markup languages used for structuring and presenting content on the web.

• XML stands for Extensible Markup Language and is used for storing and transporting data.

• HTML stands for HyperText Markup Language and is used for creating web pages.

• XML focuses on the structure of data, while HTML focuses on the presentation of data.

• XML uses tags to define data elements, attributes, and hierarchies.

• HTML uses tags to define the structure of a web page, such as headings, pa...read more

DIV is a block-level element while SPAN is an inline element used for styling and grouping content.

• DIV is a block-level element, meaning it takes up the full width available and starts on a new line.

• SPAN is an inline element, meaning it only takes up as much width as necessary and does not start on a new line.

• DIV is typically used to group larger sections of content, while SPAN is used to style smaller portions of text within a block-level element.

• Example: <div>This is a bloc...read more

Anchor target is an attribute used in HTML to specify where to open the linked document.

• Anchor target is used in <a> tags in HTML.

• It specifies where to open the linked document, such as in a new window or tab.

• Common values for anchor target include _blank, _self, _parent, and _top.

The 'alt' attribute is required in an image tag for accessibility purposes.

• The 'alt' attribute provides a text alternative for screen readers and when the image cannot be displayed.

• Other optional attributes include 'src', 'width', 'height', 'title', 'class', 'id', etc.

• Example: <img src='image.jpg' alt='Description of image' width='100' height='100'>

HTML is a markup language used for creating web pages, while PHP is a server-side scripting language used for creating dynamic web pages.

• HTML stands for HyperText Markup Language and is used for creating the structure of web pages.

• PHP stands for Hypertext Preprocessor and is used for creating dynamic web pages by interacting with databases and other server-side technologies.

• HTML is used to define the content and structure of a web page, while PHP is used to process data and g...read more

Yes, you can write a background color in HTML using the 'background-color' property.

• Use the 'background-color' property in CSS to set the background color of an HTML element.

• Specify the color using a color name, hex code, RGB value, or HSL value.

• Example: div { background-color: #ff0000; }

The div tag is a container element used in HTML to group and style content.

• Used to divide content into sections

• Can be styled using CSS

• Commonly used for layout purposes

The span tag in HTML is used to group inline elements and apply styles to them.

• Used to group inline elements together

• Does not add any extra space or line breaks

• Commonly used for styling purposes

Creating a form in HTML involves using the <form> tag and various input elements like text fields, checkboxes, and buttons.

• Use the <form> tag to create the form structure

• Add input elements like <input type='text'> for text fields, <input type='checkbox'> for checkboxes, and <input type='submit'> for buttons

• Use labels <label> to provide descriptions for input fields

Tables in HTML can be created using the <table>, <tr>, and <td> tags.

• Use the <table> tag to create the table structure.

• Use the <tr> tag to define a row within the table.

• Use the <td> tag to define data cells within each row.

• You can also use <th> tag to define header cells within each row.

• Use attributes like colspan and rowspan to merge cells or span across multiple rows/columns.

DOCTYPE declaration specifies the version of HTML that the web page is using.

• DOCTYPE declaration is not an HTML tag.

• It is used to inform the web browser about the version of HTML being used.

• It is placed at the very beginning of an HTML document before the <html> tag.

• Example: <!DOCTYPE html>

Meta tags in HTML provide metadata about the HTML document.

• Meta tags are placed in the head section of an HTML document.

• They do not display on the web page but provide information about the page.

• Common meta tags include 'description', 'keywords', and 'viewport'.

Heading tags are HTML elements used to define headings and subheadings on a webpage.

• Heading tags range from <h1> to <h6>, with <h1> being the most important and <h6> the least important.

• Heading tags help search engines understand the structure and content of a webpage.

• Using heading tags properly can improve SEO and user experience.

• Example: <h1>This is a main heading</h1>

HTML is a markup language used to create the structure of web pages.

• HTML stands for HyperText Markup Language.

• It is used to create the structure of web pages by using tags.

• Tags are enclosed in angle brackets, like <tag>.

• HTML elements are used to define the different parts of a webpage, such as headings, paragraphs, images, links, etc.

• Attributes can be added to HTML elements to provide additional information or functionality.

• Example: <h1>This is a heading</h1>

The marquee tag is used in HTML to create a scrolling text or image effect on a webpage.

• Used to create a scrolling effect for text or images on a webpage

• Can specify direction, speed, and behavior of the scrolling

• Example: <marquee behavior='scroll' direction='left'>Scrolling text</marquee>

DOCTYPE declaration in HTML specifies the version of HTML being used in the document.

• DOCTYPE declaration is placed at the very beginning of an HTML document before the <html> tag.

• It informs the web browser about the version of HTML being used, which helps in rendering the page correctly.

• It also helps in triggering the browser's standards mode, ensuring consistent display across different browsers.

• Example: <!DOCTYPE html> specifies the document is using HTML5.

Box model is a fundamental concept in CSS design, consisting of content, padding, border, and margin.

• Content: actual content of the box (text, images, etc.)

• Padding: space between the content and the border

• Border: the border around the padding

• Margin: space outside the border, separating it from other elements

• Example: div { content: 100px; padding: 10px; border: 1px solid black; margin: 20px; }

HTML DOM stands for Document Object Model, which represents the structure of a web page as a tree of objects.

• HTML DOM is a programming interface for web documents.

• It represents the structure of a web page as a tree of objects.

• It allows developers to manipulate the content, structure, and style of a web page using JavaScript.

• Example: document.getElementById('myElement') retrieves an element with the ID 'myElement' from the DOM.

HTML code for form validation

• Use the 'required' attribute to make a form field mandatory

• Use the 'pattern' attribute to specify a regex pattern for validation

• Use JavaScript to add custom validation logic

Java is a programming language used for developing applications, while HTML is a markup language used for creating web pages.

• Java is an object-oriented programming language known for its portability and versatility.

• HTML is a markup language used to create the structure of web pages.

• Java is used for developing applications like mobile apps, web applications, and enterprise software.

• HTML is used to define the structure of web pages, including headings, paragraphs, links, and im...read more

CSS is used to style the appearance of HTML elements on a webpage.

• CSS is used to control the layout and design of HTML elements.

• HTML is used to structure the content of a webpage, while CSS is used to style it.

• CSS allows for more advanced styling options such as animations, transitions, and responsive design.

• HTML uses tags to define the structure of a webpage, while CSS uses selectors to target specific elements for styling.

• CSS can be applied internally within an HTML documen...read more

HTML is a markup language used for creating web pages, while responsive design ensures web pages adapt to different screen sizes.

• HTML stands for HyperText Markup Language and is used to structure content on web pages.

• Responsive design is a design approach that ensures web pages look good on all devices and screen sizes.

• Responsive design uses CSS media queries to adjust the layout based on the device's screen size.

• An example of responsive design is a website that rearranges it...read more

Head tag in HTML is used to define the header section of a webpage, containing metadata, links to external resources, and scripts.

• Head tag is placed between the opening <head> and closing </head> tags in the HTML document.

• It contains metadata such as title, character set, viewport settings, and links to external CSS stylesheets.

• It also includes scripts for JavaScript, meta tags for SEO, and other elements that are not displayed on the webpage.

• Example: <head> <title>Page Title...read more

Semantic HTML provides structure and meaning to content, improving accessibility, SEO, and maintainability.

• Improves accessibility for screen readers and other assistive technologies

• Enhances SEO by providing search engines with better understanding of content

• Improves maintainability by making code easier to read and understand

• Helps with styling and layout by providing more specific elements to target

To create a button in HTML, use the <button> tag with the desired text or image inside.

• Use the <button> tag to create a button element

• Add text or image inside the <button> tag to display on the button

• Specify any desired attributes like id, class, onclick event, etc. for the button

To create an external tab link, use HTML anchor tag with target attribute set to _blank.

• Use <a> tag in HTML with href attribute pointing to the external link

• Set the target attribute of the <a> tag to _blank to open the link in a new tab

• Example: <a href='https://www.example.com' target='_blank'>External Link</a>

The 'meta' tag in HTML is used to provide metadata about the HTML document.

• Meta tags are placed in the head section of an HTML document.

• They provide information such as character set, viewport settings, keywords, and descriptions.

• Example: <meta charset='UTF-8'>