HTML (HyperText Markup Language) is a standard markup language used to create and structure content on the internet. It is the foundation of web development and is used to build websites and web applications.
HTML uses various tags to define the structure and content of a webpage. These tags are organized in a tree-like structure, and each tag has its own purpose and function.
Here is an example of a simple HTML code that creates a basic webpage:
<!DOCTYPE html>
<html>
<head>
<title>My Webpage</title>
</head>
<body>
<h1>Welcome to my webpage!</h1>
<p>This is a paragraph of text.</p>
<ul>
<li>List item 1</li>
<li>List item 2</li>
<li>List item 3</li>
</ul>
</body>
</html>
This code creates a webpage with a title, a heading, a paragraph of text, and an unordered list. The HTML tags used in this code are:
<!DOCTYPE html>
: This tag declares the HTML version being used for the webpage.<html>
: This tag indicates the start of an HTML document.<head>
: This tag defines the head section of the webpage, which includes the title of the page.<title>
: This tag defines the title of the webpage, which is displayed in the browser tab.<body>
: This tag defines the body section of the webpage.<h1>
: This tag defines a heading, with the number indicating the level of the heading (h1 being the largest).<p>
: This tag defines a paragraph of text.<ul>
: This tag defines an unordered list.<li>
: This tag defines a list item within the unordered list.What is the role of the doctype declaration in an HTML document?
Answer: The doctype declaration is the first line of an HTML document that specifies which version of HTML is being used and how the browser should display the content.
What is the difference between an inline element and a block-level element in HTML?
Answer: Inline elements are HTML elements that only take up as much space as required and do not force a line break. Block-level elements, on the other hand, take up the full width available, create a new line, and can contain multiple other elements.
What is the purpose of the alt attribute in an HTML image tag?
Answer: The alt attribute provides text that is displayed in place of an image if the image fails to load or if the user is unable to see the image. It also improves accessibility for visually impaired users who may be using a screen reader.
What is the difference between a GET and POST request in HTML form submission?
Answer: A GET request is used to retrieve data from a server, while a POST request is used to submit data to a server. GET requests expose the data being sent in the URL, while POST requests send the data in the body of the HTTP message.
What is the purpose of the meta viewport tag in HTML?
Answer: The meta viewport tag tells the browser how to adjust the content to fit the screen size of the device the user is viewing the webpage on. It is important for responsive design and ensuring that content is optimized for all devices.