Web technology reference for developers
Structure of content on the web
Code used to describe document style
General-purpose scripting language
Protocol for transmitting web resources
Interfaces for building web applications
Learn web development
Learn to structure web content with HTML
Learn to style content using CSS
Learn to run scripts in the browser
Learn to make the web accessible to all
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Frequently asked questions about MDN Plus
Old term for CORS-safelisted request header.