This specification defines guidelines that use planetary, people, and prosperity principles (the PPP approach) throughout the decision-making process, allowing users to minimize their environmental impact in various way.
This specification defines the concept of environment variables and the env() function, which work similarly to custom properties and the var() function, but are defined globally for a document.
The Semantic Sensor Network ontology (SSN) describes actuators and their actuations, sensors and their observations, samplers and their samplings, the procedures implemented, the features of interest and samples changed or studied, and the actuated and observed properties.
This document collects together into one definition all the specs that together form the current state of Cascading Style Sheets (CSS) as of 2025.
This specification defines a well-known URL which WebAuthn Relying Parties (RPs) can host to make their creation and management endpoints discoverable by WebAuthn clients and authenticators.
Device Bound Sessions Credentials (DBSC) aims to prevent hijacking via cookie theft by building a protocol and infrastructure that allows a user agent to assert possession of a securely-stored private key.
Act Rules Format defines a format for writing accessibility test rules that can be used for developing automated testing tools and manual testing methodologies.
The W3C Membership approved the 2025 W3C Process Document, which documents the organizational structure of W3C and processes, responsibilities and functions that enable W3C to accomplish its mission..
This specification defines a method to incrementally transfer a font from server to client.
The W3C Advisory Board has published today as a W3C Statement the document Vision for W3C, which articulates W3C’s core vision for the Web
This module contains the features of CSS relating to the borders and decorations of boxes on the page.
This specification defines a text-only profile of [ttml2] intended for subtitle and caption delivery applications worldwide.
This program is for people from an under-represented group and Invited Experts who wouldn’t be able to attend or meaningfully contribute to TPAC without financial support.
W3C released the 2025 diversity report, as part of our commitment and continued focus on diversity and inclusion since 2018.
The Internet Architecture Board (IAB) and World Wide Web Consortium (W3C) are convening a workshop to examine the technical and architectural implications of different approaches to implementing age-based restrictions on access to online content.
This module defines coordinate-based positioning and offsetting schemes of CSS: relative positioning, sticky positioning, absolute positioning, and fixed positioning.
This API enables websites to request credentials, and for users to consent to return credentials that they carry around in digital wallets.
The Third Edition adds Animated PNG and High Dynamic Range (HDR) PNG.
User stories and use cases for the Linked Web Storage (LWS) spec.
This specification defines a core subset of Mathematical Markup Language, or MathML, that is suitable for browser implementation.
The Accessible Rich Internet Applications (ARIA) Working Group has published Digital Publishing WAI-ARIA Module 1.1 (DPUB-ARIA) and Digital Publishing Accessibility API Mappings 1.1 (DPUB-AAM) as W3C Recommendations.
W3C opens today a new session of its CSS Basics course on W3Cx, where you can learn how to take your web pages from bland to bold with the power of CSS styling.
The W3C Advisory Committee has elected seven individuals to the W3C Advisory Board (AB) .
This document provides definitions for privacy and related concepts that are applicable worldwide as well as a set of privacy principles that should guide the development of the web as a trustworthy platform.
This module defines the ability for authors to define custom functions, acting similar to parametrized custom properties.
This specification defines guidelines that use planetary, people, and prosperity principles (the PPP approach) throughout the decision-making process, allowing users to minimize their environmental impact in various way.
This specification defines the concept of environment variables and the env() function, which work similarly to custom properties and the var() function, but are defined globally for a document.
The Semantic Sensor Network ontology (SSN) describes actuators and their actuations, sensors and their observations, samplers and their samplings, the procedures implemented, the features of interest and samples changed or studied, and the actuated and observed properties.
This document collects together into one definition all the specs that together form the current state of Cascading Style Sheets (CSS) as of 2025.
This specification defines a well-known URL which WebAuthn Relying Parties (RPs) can host to make their creation and management endpoints discoverable by WebAuthn clients and authenticators.
Device Bound Sessions Credentials (DBSC) aims to prevent hijacking via cookie theft by building a protocol and infrastructure that allows a user agent to assert possession of a securely-stored private key.
Act Rules Format defines a format for writing accessibility test rules that can be used for developing automated testing tools and manual testing methodologies.
The W3C Membership approved the 2025 W3C Process Document, which documents the organizational structure of W3C and processes, responsibilities and functions that enable W3C to accomplish its mission..
This specification defines a method to incrementally transfer a font from server to client.
The W3C Advisory Board has published today as a W3C Statement the document Vision for W3C, which articulates W3C’s core vision for the Web
This module contains the features of CSS relating to the borders and decorations of boxes on the page.
This specification defines a text-only profile of [ttml2] intended for subtitle and caption delivery applications worldwide.
This program is for people from an under-represented group and Invited Experts who wouldn’t be able to attend or meaningfully contribute to TPAC without financial support.
W3C released the 2025 diversity report, as part of our commitment and continued focus on diversity and inclusion since 2018.
The Internet Architecture Board (IAB) and World Wide Web Consortium (W3C) are convening a workshop to examine the technical and architectural implications of different approaches to implementing age-based restrictions on access to online content.
This module defines coordinate-based positioning and offsetting schemes of CSS: relative positioning, sticky positioning, absolute positioning, and fixed positioning.
This API enables websites to request credentials, and for users to consent to return credentials that they carry around in digital wallets.
The Third Edition adds Animated PNG and High Dynamic Range (HDR) PNG.
User stories and use cases for the Linked Web Storage (LWS) spec.
This specification defines a core subset of Mathematical Markup Language, or MathML, that is suitable for browser implementation.
The Accessible Rich Internet Applications (ARIA) Working Group has published Digital Publishing WAI-ARIA Module 1.1 (DPUB-ARIA) and Digital Publishing Accessibility API Mappings 1.1 (DPUB-AAM) as W3C Recommendations.
W3C opens today a new session of its CSS Basics course on W3Cx, where you can learn how to take your web pages from bland to bold with the power of CSS styling.
The W3C Advisory Committee has elected seven individuals to the W3C Advisory Board (AB) .
This document provides definitions for privacy and related concepts that are applicable worldwide as well as a set of privacy principles that should guide the development of the web as a trustworthy platform.
This module defines the ability for authors to define custom functions, acting similar to parametrized custom properties.