CSS Multi-column Layout Module Level 1 publication history Date Status 12 October 2021 Candidate Recommendation Snapshot 12 February 2021 Working Draft 15 October 2019 Working Draft 28 May 2018 Working Draft 5 October 2017 Working Draft 12 April 2011 Candidate Recommendation Snapshot 17 December 2009 Candidate Recommendation Snapshot 30 June 2009 Last Call Working Draft 6 June 2007 Working Draft 15 December 2005 Working Draft 18 January 2001 Working Draft 23 June 1999 Working Draft