The document provides an introduction and overview of HTML, CSS, JavaScript, and how the web works. It discusses the difference between static and dynamic webpages. Key points include:
- The World Wide Web consists of clients and servers connected over the internet that communicate using HTTP. Webpages, images, and files are requested and returned between clients and servers.
- HTML is used to define the structure and content of a webpage. CSS is used for presentation and styling. JavaScript adds interactivity.
- Static webpages only provide information with no user interaction, while dynamic webpages use server-side scripts like PHP to interact with users.
- The document gives examples of HTML tags, CSS stylesheets