This document provides an introduction to the languages and technologies used to build webpages: HTML, CSS, and JavaScript. It explains that HTML provides the content and structure of a webpage, CSS controls the styling and layout, and JavaScript adds interactive elements. It also gives examples of basic HTML tags and documents, CSS syntax and use of selectors/properties/values to style elements, and recommends using a text editor and browser for coding. Finally, it discusses related topics like naming conventions and purchasing a domain and server hosting.