Cascading Style Sheets, level 1 publication history Date Status 13 September 2018 Retired 11 April 2008 Recommendation 11 January 1999 Recommendation 17 December 1996 Recommendation 12 November 1996 Proposed Recommendation 11 September 1996 Working Draft 26 July 1996 Working Draft 5 May 1996 Working Draft 18 April 1996 Working Draft 20 February 1996 Working Draft 22 December 1995 Working Draft 9 December 1995 Working Draft 23 November 1995 Working Draft 17 November 1995 Working Draft