Expand/Collapse Widget Demo

HTML (HyperText Markup Language) is the standard markup language for creating web pages. It describes the structure of a web page semantically and originally included cues for the appearance of the document.

Key Features:

  • Semantic elements for better structure
  • Easy to learn and use
  • Supported by all browsers
  • Foundation of web development

CSS (Cascading Style Sheets) is a style sheet language used for describing the presentation of a document written in HTML or XML. CSS describes how elements should be rendered on screen, on paper, in speech, or on other media.

Benefits of CSS:

  • Separation of content and presentation
  • Reusable styles across multiple pages
  • Responsive design capabilities
  • Animations and transitions

JavaScript is a high-level, interpreted programming language that conforms to the ECMAScript specification. It is a language that is also characterized as dynamic, weakly typed, prototype-based and multi-paradigm.

JavaScript Capabilities:

  • Interactive web pages
  • Client-side and server-side programming
  • Asynchronous operations
  • DOM manipulation
  • Event handling

Responsive web design is an approach to web design that makes web pages render well on a variety of devices and window or screen sizes. It ensures that users have a good viewing experience no matter what device they're using.

Core Principles:

  • Fluid grids and flexible layouts
  • Flexible images and media
  • Media queries for different devices
  • Mobile-first approach

Web APIs are application programming interfaces for the Web. They extend the functionality of the browser and enable you to build complex web applications. Browser APIs are built into your web browser and can expose data from the browser and surrounding computer environment.

Common Web APIs:

  • Fetch API for network requests
  • DOM API for manipulating documents
  • Geolocation API for location data
  • Web Storage API for client-side storage
  • Canvas API for graphics