HTML (HyperText Markup Language) is the standard markup language used to create and structure content on the World Wide Web. It describes the structure of a web page semantically and originally included cues for the appearance of the document.
HTML elements are the building blocks of HTML pages. With HTML constructs, images and other objects such as interactive forms may be embedded into the rendered page.
CSS (Cascading Style Sheets) is a stylesheet language used to describe the presentation of a document written in HTML or XML (including XML dialects like SVG, MathML, or XHTML).
CSS describes how elements should be rendered on screen, on paper, in speech, or on other media. It controls layout, colors, fonts, and more.
JavaScript is a high-level, interpreted programming language primarily used as the scripting language for web pages. It enables interactive web pages through client-side scripting.
JavaScript is one of the core technologies of the World Wide Web, alongside HTML and CSS. It conforms to the ECMAScript specification and is supported by all modern web browsers.