HTML stands for HyperText Markup Language. It is the standard markup language for documents designed to be displayed in a web browser. It can be assisted by technologies such as Cascading Style Sheets (CSS) and scripting languages such as JavaScript.
HTML forms the basic structure of a web page, and its elements are the building blocks of all websites.
CSS (Cascading Style Sheets) is used for describing the presentation of a document written in a markup language like HTML. CSS is a cornerstone technology of the World Wide Web, alongside HTML and JavaScript. It allows for the separation of document content from document presentation, including elements like layout, colors, and fonts.
By keeping style separate from content, CSS makes web design more flexible and efficient, allowing changes to be applied globally across a website.
JavaScript is a programming language that is one of the core technologies of the World Wide Web. It is used to make web pages interactive and dynamic. Alongside HTML and CSS, JavaScript is an essential component of most web applications, enabling client-side scripting functionality.
It supports event-driven, functional, and imperative programming styles, and has become ubiquitous in modern web development, also extending to server-side with Node.js.