Today, W3C opens registration for a new session of the Responsive Web Design training course, to start 8 May 2015. This course leads students step by step through an approach that focuses on HTML and CSS to make Web sites work across devices. You will be working with viewport declarations and media-queries for responsive layout, responsive images, navigation, typography, tables, forms and video. Taught by trainer Frances de Waal, this course is 5 weeks long. Enroll before 10 April to benefit from the early bird rate! Learn more about W3DevCampus, W3C’s online training for Web developers and watch our fun intro video.

The Web Applications Working Group has published a Working Draft of UI Events (formerly DOM Level 3 Events). This specification defines UI Events which extend the DOM Event objects defined in DOM4. UI Events are those typically implemented by visual user agents for handling user interaction such as mouse and keyboard input. Learn more about the Rich Web Client Activity.

W3C and the Web Application Security Working Group invite implementation of “Mixed Content,” a specification that aims to improve web security by describing how a user agent should handle fetching of content loaded in a mixed security context. Specifically, it provides recommendations for the handling of content fetched over unencrypted or unauthenticated connections in the context of an encrypted and authenticated document. The WebAppSec WG, part of the Security Activity, welcomes comments on its public mailing list.

The RDFa Working Group has published four Edited Recommendations for RDFa 1.1, namely HTML+RDFa 1.1, RDFa Core 1.1, RDFa Lite 1.1, and XHTML+RDFa 1.1. The HTML+RDFa 1.1 Recommendation had to be updated now that both RDF 1.1 Concepts and HTML5 are Recommendations, in order to resolve dependencies and finalize the pending normative status of some HTML+RDFa 1.1 features. Using the opportunity of a republication of this document, the few editorial errata in all the RDFa 1.1 documents have also been taken care of. The Working Group has also published a new version of the RDFa 1.1 Primer Working Group Note. Learn more about the Data Activity.

The Audio Working Group has published an updated Working Draft of Web MIDI API. This specification provides users with a bridge between a Web browser and their MIDI-capable devices, such as musical instruments, lighting controls, or any other MIDI device. With this API, users can control or exchange information with MIDI devices directly from the browser. The Web MIDI API is a low-level feature, intended for use with other web platform features, like the Web Audio API, with the goal of familiarity for users of operating-system-level MIDI APIs, such as Apple’s CoreMIDI and Microsoft’s Windows MIDI API. Learn more about the Rich Web Client Activity.

The Cascading Style Sheets (CSS) Working Group has published a Working Draft of CSS Grid Layout Module Level 1. This CSS module defines a two-dimensional grid-based layout system, optimized for user interface design. In the grid layout model, the children of a grid container can be positioned into arbitrary slots in a flexible or fixed predefined layout grid. Learn more about the Style Activity.

The HTML Working Group has published a Group Note of Public Identifiers for entity resolution in XHTML. This document adds an additional public identifier that should be recognized by XHTML user agents and cause the HTML character entity definitions to be loaded. Unlike the identifiers already listed by the HTML 5 specification, the identifier added by this extension references the set of definitions that is used by HTML. Learn more about the HTML Activity.