What is HTML?

HTML (HyperText Markup Language) is the standard markup language used to create web pages and other information that can be displayed in a web browser. It provides the structure and content of a web page, allowing web developers to add text, images, videos, links, and other elements to a page. HTML is not a programming language, but rather a markup language that uses tags to describe the structure and content of a page. When a web browser requests a web page, it reads the HTML code and renders it into a visual format for the user to interact with. HTML is an essential tool for web development and forms the foundation for more complex technologies such as CSS and JavaScript.

How does it work?

HTML works by using tags to describe the structure and content of a web page. These tags are enclosed in angle brackets (< >), and tell the browser how to interpret and display the content of a page. For example, a "paragraph" tag (<p>) is used to define a paragraph of text, while an "image" tag (<img>) is used to embed an image on the page.

When a web browser requests a web page, it receives the HTML code and uses it to render the page into a visual format. The browser reads the HTML code and uses it to create a Document Object Model (DOM), which is a hierarchical tree-like structure that represents the content and structure of the page. The DOM allows the browser to dynamically modify the content and appearance of the page, and to respond to user interactions such as clicking links or filling out forms.

CSS (Cascading Style Sheets) is used to add visual styles to the HTML content, such as font size, colour, and layout. JavaScript is used to add interactivity to the page, allowing it to respond to user actions and dynamically update the content.

In summary, HTML provides the structure and content of a web page, CSS adds visual styles, and JavaScript adds interactivity, allowing web developers to create dynamic, user-friendly web pages.