CSS Backgrounds and Borders Module Level 3

CSS Backgrounds and Borders Module Level 3

• 2017-10-17: Published as CR. PFWG had objected back in 2010 unsure of disposition of comments. Previous CR was 2014, we didn't object then.
• 2017-10-18: CSS TF should look.
• 2020-12-22: Published as CR Snapshot.
• 2021-01-06: Want a reference to Silver non-text contrast stuff, once we have it.