2023-05-30 David Shea's CSS Zen Garden celebrates its 20th anniversary by restoring some pages that had disappeared from the web site, such as the list of all designs.

2021-02-17 CSS Day 2022 will take place June 9 & 10.

2020-08-04 Style Stage is a project by Stephanie Eckles (5t3ph on Twitter) to showcase CSS. It invites designers to style the same page in their own way. It was inspired by Dave Shea's CSS Zen Garden.

2020-02-25 ‘You'd be better at CSS if you knew how it worked’ is an article by Kevin Powell about some common misunderstandings about CSS.

2017-10-20 A story by Aaron Gustafson in A List Apart describes the history of the CSS Grid module and why Grid is different from older parts of CSS.

2017-09-20 W3C's CSS Basics course is an online, MOOC-based course with professional instructors, developed jointly by W3C and Microsoft. It is part of W3C's ‘Front-End Web Developer’ Professional Certificate

2014-10-22 Opera published an interview with Håkon Wium Lie to mark the 20th anniversary (10 Oct) of the first public message mentioning “Cascading [HTML] Style Sheets.” (For more history, see: chapter 2 of Cascading Style Sheets, designing for the Web; a list of alternative style sheet proposals; and Håkon's PhD thesis.)

2012-04-23 The slides for the CSS3 tutorial at WWW2012 by Eva Kasal and Bert Bos are online.

2012-02-24 Maurício Samy Silva, CSS3: Desenvolva aplicações web profissionais com uso dos poderosos recursos de estilizaçao das CSS3 (Novatec, 2011, ISBN 978-85-7522-289-8)

2012-01-18 The Mozilla Developer Network offers information about CSS, including a CSS tutorial and a CSS reference.

2011-07-20 W3C publishes training material (still under development) for CSS: CSS for beginners and Web Standards Curriculum. The first is by Hiroki Yamada and development was supported by Internet Academy. The second is by Chris Mills of Opera and was originally developed for the Opera Web Standards Curriculum.

2010-05-28 Andy Clarke (with contributions by César Acebal) Transcending CSS: The Fine Art of Web Design, New Riders, 2007

2010-05-07 César F. Acebal, ALMcss: Separación de estructura y presentación en la web mediante posicionamiento avanzado en CSS, (“ALMcss: Separation of structure and presentation on the Web by means of advanced positioning in CSS”) University of Oviedo, 2010. This PhD thesis analyses CSS Template Layout [PDF, in English with a Spanish summary].

2010-03-16 The annotated slides from my (Bert's) presentation at SXSW on the history of WebFonts are online.

2009-12-04 Style sheets can take the language of a document into account (with the ':lang' pseudo-class)… but only if the document is correctly labeled. W3C's I18N WG published the latest guidelines on Choosing a language tag.