1. What is HTML?
HTML stands for HyperText Markup Language. It is the standard markup language used to create and structure content on the web. HTML is used to define the structure and presentation of web documents, including text, images, links, forms, and other elements.
2. What are the basic structure and essential components of an HTML document?
The basic structure of an HTML document consists of the following components:
<!DOCTYPE html> <html> <head> <title>Document Title</title> </head> <body> <!-- Content goes here --> </body> </html>
3. What is the purpose of the <!DOCTYPE> declaration?
The <!DOCTYPE> declaration specifies the document type and version of HTML being used in the document. It helps browsers to render the content correctly by following the appropriate rendering rules.
4. What are semantic elements in HTML? Give some examples.
Semantic elements provide meaning to the structure of web content. They convey the importance and role of the enclosed content to both browsers and developers. Examples of semantic elements include
<header>, <nav>, <main>, <section>, <article>, <aside>, and <footer>
5. What is the difference between <div> and <span> elements?
<div> is a block-level element used to group and section content. It creates a new block formatting context, causing elements before and after it to appear on separate lines. <span> is an inline-level element used to apply styles or scripting to a specific portion of text within a larger block of content.
6. What is the purpose of the <meta> tag?
The tag is used to provide metadata about the HTML document, such as character encoding, author, description, and keywords. It is often placed within the section of an HTML document.
7. How can you create a hyperlink in HTML?
Hyperlinks are created using the (anchor) element. The href attribute specifies the URL of the linked resource, and the text between the opening and closing tags becomes the clickable link text.
<a href="https://www.example.com">Visit Example</a>
8. What is the purpose of the alt attribute in the element?
The alt attribute in the element provides alternative text for the image, which is displayed if the image cannot be loaded or read by screen readers. It improves accessibility and allows users to understand the content of the image.
9. How can you create a numbered list and a bulleted list in HTML?
- Item 1
- Item 2
- Item A
- Item B
10 What is the purpose of the <form> element?
The element is used to create interactive forms that collect user input. It can contain various form controls like text fields, radio buttons, checkboxes, and buttons. The action attribute specifies the URL to which the form data should be submitted.
11. What is the difference between inline elements and block elements?
12. How can you include comments in an HTML document? Comments in HTML are written using the <!-- --> syntax. They are ignored by browsers and are intended for developers to include notes within the code. 13. What is the difference between the id and class attributes in HTML? The id attribute uniquely identifies a single HTML element on a page. It should be unique within the entire document. The class attribute is used to apply a class name to one or more elements. Multiple elements can share the same class, allowing you to apply the same styling or behavior to them. 14. How can you embed a video in an HTML document? You can embed videos using the <video> element. Here's an example: <video controls width="400"> <source src="video.mp4" type="video/mp4"> Your browser does not support the video tag. </video> The controls attribute adds video controls like play, pause, and volume. 15. Explain the concept of responsive web design. Responsive web design involves creating websites that adapt and respond to different screen sizes and devices. This ensures that the content and layout are user-friendly on various devices, such as desktops, tablets, and smartphones. Techniques like media queries and flexible grid layouts are used to achieve responsive design. 16. What are semantic UI frameworks in HTML? Semantic UI frameworks provide pre-designed CSS classes and components that follow semantic naming conventions. These frameworks help streamline and standardize the design and layout process. Examples include Bootstrap and Foundation. 17. How can you create a dropdown menu in HTML? Dropdown menus can be created using the <select> element along with the <option> elements. Here's an example: <select> <option value="option1">Option 1</option> <option value="option2">Option 2</option> <option value="option3">Option 3</option> </select> 18. What is the purpose of the <iframe> element? The <iframe> (inline frame) element is used to embed external content, such as web pages or videos, within an HTML document. It provides a way to include external content without having to navigate away from the current page. 19. How can you add a background image to an HTML element? You can add a background image to an element using the background-image CSS property. For example: <div style="background-image: url('image.jpg');"></div> 20. What is the purpose of the <meta name="viewport"> tag? The <meta name="viewport"> tag is used to control the viewport's width and initial scale on mobile devices. It helps ensure that websites are displayed correctly on various screen sizes and orientations.