Overview / Web Technology
Web technology reference for developers
HTML
Structure of content on the web
CSS
Code used to describe document style
JavaScript
General-purpose scripting language
HTTP
Protocol for transmitting web resources
Web APIs
Interfaces for building web applications
Web Extensions
Developing extensions for web browsers
Web Technology
Overview / MDN Learning Area
Learn web development
MDN Learning Area
Learn to structure web content with HTML
Learn to style content using CSS
Learn to run scripts in the browser
Accessibility
Learn to make the web accessible to all
Overview
A customized MDN experience
AI Help
Get real-time assistance and support
Updates
All browser compatibility updates at a glance
Documentation
Learn how to use MDN Plus
FAQ
Frequently asked questions about MDN Plus
Playground
Write, test and share your code
HTTP Observatory
Scan a website for free
Article Images
Article Images
Article Images