How Websites Work

When you make request from a client which is any browser the web server respond with the data which is a dedicated computer somewhere else in the world.
There are two components that make up a computer.
1. Front End (Client-Side) - The web browser which renders the website.
2. Back end (Server-Side) - A server that process the request and return response.

HTML

Websites are normally created using :

Hyper Text Markup Language (HTML) is the language websites are written.

The HTML structure (as shown in the screenshot) has the following components:

The <!DOCTYPE html> defines that the page is a HTML5 document. This helps with standardisation across different browsers and tells the browser to use HTML5 to interpret the page.
The <html> element is the root element of the HTML page - all other elements come after this element.
The <head> element contains information about the page (such as the page title)
The <body> element defines the HTML document's body; only content inside of the body is shown in the browser.
The <h1> element defines a large heading
The <p> element defines a paragraph
There are many other elements (tags) used for different purposes. For example, there are tags for buttons (<button>), images (<img>), lists, and much more.