CSS2.1
Cascading Style Sheets Level 2 Revision 1
時系列
2002-08-02: 草案
https://www.w3.org/TR/2002/WD-CSS21-20020802/
2003-01-28: 草案
https://www.w3.org/TR/2003/WD-CSS21-20030128/
2003-09-15: 草案
https://www.w3.org/TR/2003/WD-CSS21-20030915/
2004-02-25: 勧告候補
https://www.w3.org/TR/2004/CR-CSS21-20040225/
2005-06-13: 草案
https://www.w3.org/TR/2005/WD-CSS21-20050613/
2006-04-11: 草案
https://www.w3.org/TR/2006/WD-CSS21-20060411/
2006-11-06: 草案
https://www.w3.org/TR/2006/WD-CSS21-20061106/
2007-07-19: 勧告候補
https://www.w3.org/TR/2007/CR-CSS21-20070719/
2009-04-23: 勧告候補
https://www.w3.org/TR/2009/CR-CSS2-20090423/
2009-09-08: 勧告候補
https://www.w3.org/TR/2009/CR-CSS2-20090908/
2010-12-07: 勧告候補
https://www.w3.org/TR/2010/WD-CSS2-20101207/
2011-04-12: 勧告案
https://www.w3.org/TR/2011/PR-CSS2-20110412/
2011-06-07: 勧告
https://www.w3.org/TR/2011/REC-CSS2-20110607/