Resources for Developers,
by Developers
Documenting web technologies, including CSS, HTML, and JavaScript, since 2005.
Featured articles
Developer essentials: JavaScript console methods
The JavaScript console is an essential tool for web development. Learn new and fun ways to use the console to display data and debug your code.
Introduction to web sustainability
What can web designers and developers do to build a more sustainable web? This post explores the environmental impacts of web technologies and looks at some of the ways we can build greener websites.
CSS Custom Highlight API
The CSS Custom Highlight API provides a mechanism for styling arbitrary text ranges on a document by using JavaScript to create the ranges, and CSS to style them.
Latest news
Recent contributions
Add note about missing manifest membersmdn/content
33 minutes agoAdded "period" for clarity of what a "full stop" is.mdn/content
3 hours agofix(svg attributes): Remove the element list and reorder sections (for attributes u-z )mdn/content
6 hours agofeat: Note about startViewTransition skipping if page not visible. Fix auto-playing audio in live samplemdn/content
6 hours agoHoisted vars are still initializedmdn/content
8 hours ago[zh-cn]: update translation of `HTMLFormElement.elements` propertymdn/translated-content
16 hours agozh-cn: update the translation of `importScripts()`mdn/translated-content
16 hours agozh-cn: fix the broken links to Wikipediamdn/translated-content
16 hours ago[zh-cn]: update the translation of "Writing a WebSocket server in Java"mdn/translated-content
16 hours ago[zh-cn]: update the translation of `<small>` elementmdn/translated-content
16 hours ago
Contributor Spotlight
YujiMDN Web Docs has the most up-to-date and accurate information and the content is presented in an easy-to-understand manner. I also like that it's available in many languages (very important!).Get involved →