CSS (English Wikipedia)

Cederholm, Dan; Ethan Marcotte (2009). Handcrafted CSS: More Bulletproof Web Design. New Riders. p. 114. ISBN 978-0-321-64338-4. Archived from the original on 20 December 2012. Retrieved 19 June 2010.

caniuse.com (Global: low place; English: low place)

"CSS". Can I Use… Support tables for HTML5, CSS3, etc. Archived from the original on 2018-02-19. Retrieved 2019-01-26.

clubmate.fi (Global: low place; English: low place)

Antti, Hiljá. "OOCSS, ACSS, BEM, SMACSS: what are they? What should I use?". clubmate.fi. Hiljá. Archived from the original on 2 June 2015. Retrieved 2 June 2015.

computer.org (Global: 5,196^th place; English: 3,635^th place)

Petrie, Charles; Cailliau, Robert (November 1997). "Interview Robert Cailliau on the WWW Proposal: "How It Really Happened."". Institute of Electrical and Electronics Engineers. Archived from the original on 6 January 2011. Retrieved 18 August 2010.

donsnotes.com (Global: low place; English: low place)

McBride, Don (27 November 2009). "File Types". Archived from the original on 29 October 2010. Retrieved 20 June 2010.

htmlgoodies.com (Global: low place; English: low place)

Clark, Scott (23 July 2010). "Web-based Mobile Apps of the Future Using HTML 5, CSS and JavaScript". HTML Goodies. HTMLGoodies. Archived from the original on 2014-10-20. Retrieved 2014-10-16.

lifewire.com (Global: 5,910^th place; English: 4,171^st place)

Kyrnin, Jennifer (2019-11-12). "What Are CSS Vendor or Browser Prefixes?". Lifewire. Archived from the original on Nov 30, 2020.

meyerweb.com (Global: low place; English: low place)

"Pure CSS Popups". meyerweb.com. Archived from the original on 2009-12-09. Retrieved 2009-11-19.

mozilla.org (Global: 1,686^th place; English: 1,293^rd place)

developer.mozilla.org

"CSS developer guide". MDN Web Docs. Archived from the original on 2015-09-25. Retrieved 2015-09-24.
"CSS Color". MDN Web Docs. 2024-04-05. Archived from the original on 2024-03-27. Retrieved 2024-04-05.
"Shorthand properties". Tutorial. Mozilla Developers. 2017-12-07. Archived from the original on 2018-01-30. Retrieved 2018-01-30.
Nitot, Tristan (18 March 2002). "Incorrect MIME Type for CSS Files". Mozilla Developer Center. Mozilla. Archived from the original on 2011-05-20. Retrieved 20 June 2010.
"CSS". MDN Web Docs. 21 July 2023. Archived from the original on Nov 26, 2023.

hacks.mozilla.org

Simmons, Jen (August 17, 2016). "Using Feature Queries in CSS". Mozilla Hacks. Archived from the original on 2016-10-11. Retrieved 2016-10-12.

opera.com (Global: 6,731^st place; English: 5,817^th place)

people.opera.com

"Cascading Style Sheets". University of Oslo. Archived from the original on 2006-09-06. Retrieved 3 September 2014.

oreilly.com (Global: 4,347^th place; English: 3,017^th place)

shop.oreilly.com

Meyer, Eric A. (2006). Cascading Style Sheets: The Definitive Guide (3rd ed.). O'Reilly Media, Inc. ISBN 0-596-52733-0. Archived from the original on 2014-02-15. Retrieved 2014-02-16.

pndesign.cz (Global: low place; English: low place)

extensions.pndesign.cz

"css file extension details". File extension database. 12 March 2010. Archived from the original on 18 July 2011. Retrieved 20 June 2010.

rachelandrew.co.uk (Global: low place; English: low place)

Andrew, Rachel. "Why there is no CSS4 – explaining CSS Levels". Archived from the original on 8 July 2025. Retrieved 28 September 2025.

smashingmagazine.com (Global: low place; English: low place)

Lazaris, Louis (2010-04-28). "CSS3 Solutions for Internet Explorer". Smashing Magazine. Archived from the original on 2016-10-12. Retrieved 2016-10-12.

stackoverflow.com (Global: 4,643^rd place; English: 2,973^rd place)

"Can a CSS class inherit one or more other classes?". StackOverflow. Archived from the original on 2017-10-14. Retrieved 2017-09-10.

tabatkins.github.io (Global: low place; English: low place)

Tab Atkins Jr. "CSS apply rule". GitHub. Archived from the original on 2016-02-22. Retrieved 2016-02-27.

w3.org (Global: 691^st place; English: 581^st place)

w3.org

"Minutes Telecon 2024-12-11". CSS WG Blog. W3C. 2024-12-12. Archived from the original on 2025-01-16. Retrieved 2025-01-16.
"What is CSS?". World Wide Web Consortium. Archived from the original on 2010-11-29. Retrieved 2010-12-01.
"W3C CSS2.1 specification for pseudo-elements and pseudo-classes". World Wide Web Consortium. 7 June 2011. Archived from the original on 30 April 2012. Retrieved 30 April 2012.
"Selectors". Cascading Style Sheets Level 2 Revision 1 (CSS 2.1) Specification. W3C. Archived from the original on 2006-04-23.
"Selectors Level 3". W3C. Archived from the original on 2014-06-03. Retrieved 2014-05-30.
"CSS Syntax Module Level 3". W3C. Archived from the original on 1 October 2023. Retrieved 1 October 2023.
"W3C CSS2.1 specification for rule sets, declaration blocks, and selectors". World Wide Web Consortium. 7 June 2011. Archived from the original on 28 March 2008. Retrieved 2009-06-20.
"Full property table". W3C. Archived from the original on 2014-05-30. Retrieved 2014-05-30.
"Index of CSS properties". W3C. Retrieved 2020-08-09.
"6.1 Length units". Cascading Style Sheets, level 1. 17 December 1996. Archived from the original on 14 June 2019. Retrieved 20 June 2019.
"5. Distance Units: the <length> type". CSS Values and Units Module Level 3. 6 June 2019. Archived from the original on 7 June 2019. Retrieved 20 June 2019.
W3C HTML Working Group. "HTML 5. A vocabulary and associated APIs for HTML and XHTML". World Wide Web Consortium. Archived from the original on 15 July 2014. Retrieved 28 June 2014.
"Assigning property values, Cascading, and Inheritance". Archived from the original on 2014-06-11. Retrieved 2014-06-10.
Bos, Bert; et al. (7 December 2010). "9.3 Positioning schemes". Cascading Style Sheets Level 2 Revision 1 (CSS 2.1) Specification. W3C. Archived from the original on 18 February 2011. Retrieved 16 February 2011.
Lie, Hakon W (10 October 1994). "Cascading HTML style sheets – a proposal" (Proposal). CERN. Archived from the original on 4 June 2014. Retrieved 25 May 2014.
"Cascading Style Sheets, level 1". World Wide Web Consortium. Archived from the original on 2014-04-09. Retrieved 2014-03-07.
Bos, Bert (14 April 1995). "Simple style sheets for SGML & HTML on the web". World Wide Web Consortium. Archived from the original on 23 September 2009. Retrieved 20 June 2010.
Bos, Bert (31 March 1995). "Stream-based Style sheet Proposal". Archived from the original on 12 October 2014. Retrieved 3 September 2014.
Nielsen, Henrik Frystyk (7 June 2002). "Libwww Hackers". World Wide Web Consortium. Archived from the original on 2 December 2009. Retrieved 6 June 2010.
"Yves Lafon". World Wide Web Consortium. Archived from the original on 24 June 2010. Retrieved 17 June 2010.
"The W3C Team: Technology and Society". World Wide Web Consortium. 18 July 2008. Archived from the original on 28 May 2010. Retrieved 22 January 2011.
Lou Montulli; Brendan Eich; Scott Furman; Donna Converse; Troy Chevalier (22 August 1996). "JavaScript-Based Style Sheets". W3C. Archived from the original on 27 May 2010. Retrieved 23 June 2010.
"CSS software". W3C. Archived from the original on 2010-11-25. Retrieved 2011-01-15.
"Archive of W3C News in 2007". World Wide Web Consortium. 21 December 2007. Archived from the original on 2011-06-28. Retrieved 2011-02-16.
"CSS Snapshot 2023 – 2.4. CSS Levels". W3C. 7 December 2023. Archived from the original on Feb 8, 2024.
W3C: Cascading Style Sheets, level 1 Archived 2011-02-09 at the Wayback Machine CSS 1 specification
W3C: Cascading Style Sheets level 1 specification Archived 2011-02-11 at the Wayback Machine CSS level 1 specification
"Aural style sheets". W3C. Archived from the original on 2014-10-26. Retrieved 2014-10-26.
W3C: Cascading Style Sheets, level 2 Archived 2011-01-16 at the Wayback Machine CSS 2 specification (1998 recommendation)
W3C:Cascading Style Sheets, level 2 revision 1 Archived 2011-11-09 at the Wayback Machine CSS 2.1 specification (W3C Proposed Recommendation)
W3C: Cascading Style Sheets Standard Boasts Unprecedented Interoperability Archived 2011-06-10 at the Wayback Machine
Bos, Bert (18 February 2011). "Descriptions of all CSS specifications". World Wide Web Consortium. Archived from the original on 31 March 2011. Retrieved 3 March 2011.
Bos, Bert (26 February 2011). "CSS current work". World Wide Web Consortium. Archived from the original on 3 March 2011. Retrieved 3 March 2011.
Etemad, Elika J. (12 December 2010). "Cascading Style Sheets (CSS) Snapshot 2010". World Wide Web Consortium. Archived from the original on 16 March 2011. Retrieved 3 March 2011.
"All CSS specifications". W3C. 2014-05-22. Archived from the original on 2014-05-30. Retrieved 2014-05-30.
"CSS Flexible Box Layout Module Level 1". W3C. 19 November 2018. Archived from the original on 19 October 2012. Retrieved 18 October 2012.
"Cascading Style Sheets (CSS) Snapshot 2007". 12 May 2011. Archived from the original on 8 August 2016. Retrieved 18 July 2016.
"Cascading Style Sheets (CSS) Snapshot 2010". 12 May 2011. Archived from the original on 16 March 2011. Retrieved 3 March 2011.
"CSS Snapshot 2015". W3C. 13 October 2015. Archived from the original on 27 January 2017. Retrieved 13 February 2017.
"CSS Snapshot 2017". W3C. 31 January 2017. Archived from the original on 13 February 2017. Retrieved 13 February 2017.
"CSS Snapshot 2018". W3C. 22 January 2019. Archived from the original on 1 February 2019. Retrieved 2 January 2019.
"Call for Participation in CSS4 Community Group". W3C. 24 February 2020. Archived from the original on Feb 10, 2023. Retrieved 2020-02-27.

jigsaw.w3.org

"W3C CSS validation service". Archived from the original on 2011-02-14. Retrieved 2012-06-30.

web.archive.org (Global: 1^st place; English: 1^st place)

"Minutes Telecon 2024-12-11". CSS WG Blog. W3C. 2024-12-12. Archived from the original on 2025-01-16. Retrieved 2025-01-16.
"CSS developer guide". MDN Web Docs. Archived from the original on 2015-09-25. Retrieved 2015-09-24.
"What is CSS?". World Wide Web Consortium. Archived from the original on 2010-11-29. Retrieved 2010-12-01.
Clark, Scott (23 July 2010). "Web-based Mobile Apps of the Future Using HTML 5, CSS and JavaScript". HTML Goodies. HTMLGoodies. Archived from the original on 2014-10-20. Retrieved 2014-10-16.
"W3C CSS validation service". Archived from the original on 2011-02-14. Retrieved 2012-06-30.
"W3C CSS2.1 specification for pseudo-elements and pseudo-classes". World Wide Web Consortium. 7 June 2011. Archived from the original on 30 April 2012. Retrieved 30 April 2012.
"Selectors". Cascading Style Sheets Level 2 Revision 1 (CSS 2.1) Specification. W3C. Archived from the original on 2006-04-23.
"Selectors Level 3". W3C. Archived from the original on 2014-06-03. Retrieved 2014-05-30.
"CSS Syntax Module Level 3". W3C. Archived from the original on 1 October 2023. Retrieved 1 October 2023.
"W3C CSS2.1 specification for rule sets, declaration blocks, and selectors". World Wide Web Consortium. 7 June 2011. Archived from the original on 28 March 2008. Retrieved 2009-06-20.
"Full property table". W3C. Archived from the original on 2014-05-30. Retrieved 2014-05-30.
"CSS Color". MDN Web Docs. 2024-04-05. Archived from the original on 2024-03-27. Retrieved 2024-04-05.
"6.1 Length units". Cascading Style Sheets, level 1. 17 December 1996. Archived from the original on 14 June 2019. Retrieved 20 June 2019.
"5. Distance Units: the <length> type". CSS Values and Units Module Level 3. 6 June 2019. Archived from the original on 7 June 2019. Retrieved 20 June 2019.
W3C HTML Working Group. "HTML 5. A vocabulary and associated APIs for HTML and XHTML". World Wide Web Consortium. Archived from the original on 15 July 2014. Retrieved 28 June 2014.
Meyer, Eric A. (2006). Cascading Style Sheets: The Definitive Guide (3rd ed.). O'Reilly Media, Inc. ISBN 0-596-52733-0. Archived from the original on 2014-02-15. Retrieved 2014-02-16.
"Assigning property values, Cascading, and Inheritance". Archived from the original on 2014-06-11. Retrieved 2014-06-10.
"Can a CSS class inherit one or more other classes?". StackOverflow. Archived from the original on 2017-10-14. Retrieved 2017-09-10.
"Shorthand properties". Tutorial. Mozilla Developers. 2017-12-07. Archived from the original on 2018-01-30. Retrieved 2018-01-30.
Bos, Bert; et al. (7 December 2010). "9.3 Positioning schemes". Cascading Style Sheets Level 2 Revision 1 (CSS 2.1) Specification. W3C. Archived from the original on 18 February 2011. Retrieved 16 February 2011.
Lie, Hakon W (10 October 1994). "Cascading HTML style sheets – a proposal" (Proposal). CERN. Archived from the original on 4 June 2014. Retrieved 25 May 2014.
"Cascading Style Sheets, level 1". World Wide Web Consortium. Archived from the original on 2014-04-09. Retrieved 2014-03-07.
Bos, Bert (14 April 1995). "Simple style sheets for SGML & HTML on the web". World Wide Web Consortium. Archived from the original on 23 September 2009. Retrieved 20 June 2010.
"Cascading Style Sheets". University of Oslo. Archived from the original on 2006-09-06. Retrieved 3 September 2014.
Petrie, Charles; Cailliau, Robert (November 1997). "Interview Robert Cailliau on the WWW Proposal: "How It Really Happened."". Institute of Electrical and Electronics Engineers. Archived from the original on 6 January 2011. Retrieved 18 August 2010.
Bos, Bert (31 March 1995). "Stream-based Style sheet Proposal". Archived from the original on 12 October 2014. Retrieved 3 September 2014.
Nielsen, Henrik Frystyk (7 June 2002). "Libwww Hackers". World Wide Web Consortium. Archived from the original on 2 December 2009. Retrieved 6 June 2010.
"Yves Lafon". World Wide Web Consortium. Archived from the original on 24 June 2010. Retrieved 17 June 2010.
"The W3C Team: Technology and Society". World Wide Web Consortium. 18 July 2008. Archived from the original on 28 May 2010. Retrieved 22 January 2011.
Lou Montulli; Brendan Eich; Scott Furman; Donna Converse; Troy Chevalier (22 August 1996). "JavaScript-Based Style Sheets". W3C. Archived from the original on 27 May 2010. Retrieved 23 June 2010.
"CSS software". W3C. Archived from the original on 2010-11-25. Retrieved 2011-01-15.
Anne van Kesteren. "CSS 2.1 – Anne's Weblog". Archived from the original on 2005-12-10. Retrieved 2011-02-16.
"Archive of W3C News in 2007". World Wide Web Consortium. 21 December 2007. Archived from the original on 2011-06-28. Retrieved 2011-02-16.
Nitot, Tristan (18 March 2002). "Incorrect MIME Type for CSS Files". Mozilla Developer Center. Mozilla. Archived from the original on 2011-05-20. Retrieved 20 June 2010.
McBride, Don (27 November 2009). "File Types". Archived from the original on 29 October 2010. Retrieved 20 June 2010.
"css file extension details". File extension database. 12 March 2010. Archived from the original on 18 July 2011. Retrieved 20 June 2010.
Kyrnin, Jennifer (2019-11-12). "What Are CSS Vendor or Browser Prefixes?". Lifewire. Archived from the original on Nov 30, 2020.
"Compatibility Standard". WHATWG. 24 January 2024. Archived from the original on Feb 4, 2024.
"CSS Snapshot 2023 – 2.4. CSS Levels". W3C. 7 December 2023. Archived from the original on Feb 8, 2024.
W3C: Cascading Style Sheets, level 1 Archived 2011-02-09 at the Wayback Machine CSS 1 specification
W3C: Cascading Style Sheets level 1 specification Archived 2011-02-11 at the Wayback Machine CSS level 1 specification
"Aural style sheets". W3C. Archived from the original on 2014-10-26. Retrieved 2014-10-26.
W3C: Cascading Style Sheets, level 2 Archived 2011-01-16 at the Wayback Machine CSS 2 specification (1998 recommendation)
W3C:Cascading Style Sheets, level 2 revision 1 Archived 2011-11-09 at the Wayback Machine CSS 2.1 specification (W3C Proposed Recommendation)
W3C: Cascading Style Sheets Standard Boasts Unprecedented Interoperability Archived 2011-06-10 at the Wayback Machine
Bos, Bert (18 February 2011). "Descriptions of all CSS specifications". World Wide Web Consortium. Archived from the original on 31 March 2011. Retrieved 3 March 2011.
Bos, Bert (26 February 2011). "CSS current work". World Wide Web Consortium. Archived from the original on 3 March 2011. Retrieved 3 March 2011.
Etemad, Elika J. (12 December 2010). "Cascading Style Sheets (CSS) Snapshot 2010". World Wide Web Consortium. Archived from the original on 16 March 2011. Retrieved 3 March 2011.
"All CSS specifications". W3C. 2014-05-22. Archived from the original on 2014-05-30. Retrieved 2014-05-30.
Atkins, Tab Jr. "A Word About CSS4". Archived from the original on 31 October 2012. Retrieved 18 October 2012.
Andrew, Rachel. "Why there is no CSS4 – explaining CSS Levels". Archived from the original on 8 July 2025. Retrieved 28 September 2025.
"CSS Flexible Box Layout Module Level 1". W3C. 19 November 2018. Archived from the original on 19 October 2012. Retrieved 18 October 2012.
"Cascading Style Sheets (CSS) Snapshot 2007". 12 May 2011. Archived from the original on 8 August 2016. Retrieved 18 July 2016.
"Cascading Style Sheets (CSS) Snapshot 2010". 12 May 2011. Archived from the original on 16 March 2011. Retrieved 3 March 2011.
"CSS Snapshot 2015". W3C. 13 October 2015. Archived from the original on 27 January 2017. Retrieved 13 February 2017.
"CSS Snapshot 2017". W3C. 31 January 2017. Archived from the original on 13 February 2017. Retrieved 13 February 2017.
"CSS Snapshot 2018". W3C. 22 January 2019. Archived from the original on 1 February 2019. Retrieved 2 January 2019.
"CSS". Can I Use… Support tables for HTML5, CSS3, etc. Archived from the original on 2018-02-19. Retrieved 2019-01-26.
"CSS". MDN Web Docs. 21 July 2023. Archived from the original on Nov 26, 2023.
"Call for Participation in CSS4 Community Group". W3C. 24 February 2020. Archived from the original on Feb 10, 2023. Retrieved 2020-02-27.
Lazaris, Louis (2010-04-28). "CSS3 Solutions for Internet Explorer". Smashing Magazine. Archived from the original on 2016-10-12. Retrieved 2016-10-12.
Simmons, Jen (August 17, 2016). "Using Feature Queries in CSS". Mozilla Hacks. Archived from the original on 2016-10-11. Retrieved 2016-10-12.
Hutchinson, Lee (2019). "Looking at the Web with Internet Explorer 6, one last time". Ars Technica. Archived from the original on 2016-10-12. Retrieved 2016-10-12.
"Pure CSS Popups". meyerweb.com. Archived from the original on 2009-12-09. Retrieved 2009-11-19.
Tab Atkins Jr. "CSS apply rule". GitHub. Archived from the original on 2016-02-22. Retrieved 2016-02-27.
Cederholm, Dan; Ethan Marcotte (2009). Handcrafted CSS: More Bulletproof Web Design. New Riders. p. 114. ISBN 978-0-321-64338-4. Archived from the original on 20 December 2012. Retrieved 19 June 2010.
Antti, Hiljá. "OOCSS, ACSS, BEM, SMACSS: what are they? What should I use?". clubmate.fi. Hiljá. Archived from the original on 2 June 2015. Retrieved 2 June 2015.

whatwg.org (Global: 8,307^th place; English: 5,922^nd place)

compat.spec.whatwg.org

"Compatibility Standard". WHATWG. 24 January 2024. Archived from the original on Feb 4, 2024.

worldcat.org (Global: 5^th place; English: 5^th place)

search.worldcat.org

Flanagan, David (18 April 2011). JavaScript: the definitive guide. Beijing; Farnham: O'Reilly. p. 1. ISBN 978-1-4493-9385-4. OCLC 686709345. JavaScript is part of the triad of technologies that all Web developers must learn: HTML to specify the content of web pages, CSS to specify the presentation of web pages, and JavaScript to specify the behavior of web pages.

xanthir.com (Global: low place; English: low place)

Atkins, Tab Jr. "A Word About CSS4". Archived from the original on 31 October 2012. Retrieved 18 October 2012.
"Why I Abandoned @apply — Tab Completion".

CSS (English Wikipedia)

annevankesteren.nl (Global: low place; English: low place)

archive.org (Global: 6th place; English: 6th place)

arstechnica.com (Global: 388th place; English: 265th place)

books.google.com (Global: 3rd place; English: 3rd place)

caniuse.com (Global: low place; English: low place)

clubmate.fi (Global: low place; English: low place)

computer.org (Global: 5,196th place; English: 3,635th place)

donsnotes.com (Global: low place; English: low place)

htmlgoodies.com (Global: low place; English: low place)

lifewire.com (Global: 5,910th place; English: 4,171st place)

meyerweb.com (Global: low place; English: low place)

mozilla.org (Global: 1,686th place; English: 1,293rd place)

developer.mozilla.org

hacks.mozilla.org

opera.com (Global: 6,731st place; English: 5,817th place)

people.opera.com

oreilly.com (Global: 4,347th place; English: 3,017th place)

shop.oreilly.com

pndesign.cz (Global: low place; English: low place)

extensions.pndesign.cz

rachelandrew.co.uk (Global: low place; English: low place)

smashingmagazine.com (Global: low place; English: low place)

stackoverflow.com (Global: 4,643rd place; English: 2,973rd place)

tabatkins.github.io (Global: low place; English: low place)

w3.org (Global: 691st place; English: 581st place)

w3.org

jigsaw.w3.org

web.archive.org (Global: 1st place; English: 1st place)

whatwg.org (Global: 8,307th place; English: 5,922nd place)

compat.spec.whatwg.org

worldcat.org (Global: 5th place; English: 5th place)

search.worldcat.org

xanthir.com (Global: low place; English: low place)

archive.org (Global: 6^th place; English: 6^th place)

arstechnica.com (Global: 388^th place; English: 265^th place)

books.google.com (Global: 3^rd place; English: 3^rd place)

computer.org (Global: 5,196^th place; English: 3,635^th place)

lifewire.com (Global: 5,910^th place; English: 4,171^st place)

mozilla.org (Global: 1,686^th place; English: 1,293^rd place)

opera.com (Global: 6,731^st place; English: 5,817^th place)

oreilly.com (Global: 4,347^th place; English: 3,017^th place)

stackoverflow.com (Global: 4,643^rd place; English: 2,973^rd place)

w3.org (Global: 691^st place; English: 581^st place)

web.archive.org (Global: 1^st place; English: 1^st place)

whatwg.org (Global: 8,307^th place; English: 5,922^nd place)

worldcat.org (Global: 5^th place; English: 5^th place)