4.0.0 (2015-04-20)

Potentially breaking changes

• Added two new CSS config settings, :at_rules_with_properties and :at_rules_with_styles. These allow you to define which at-rules should be allowed to contain properties and which should be allowed to contain style rules. Previously this was hard-coded internally. #111

  The previous :at_rules setting still exists, and defines at-rules that may not have associated blocks, such as @import. If you have a custom config that contains an :at_rules setting, you may need to move rules can have blocks to either :at_rules_with_properties or :at_rules_with_styles.

  See Sanitize's relaxed config for an example.

Other changes

• Added full support for CSS @page rules in the relaxed config, including support for all page-margin box rules (such as @top-left, @bottom-center, etc.)
• Added the following CSS at-rules to the relaxed config:
  • @-moz-keyframes
  • @-o-keyframes
  • @-webkit-keyframes
  • @document
• Added a whole bunch of CSS properties to the relaxed config. View the complete list here.
• Small performance improvements.
• Fixed: Upgraded Crass to 1.0.2 to pick up a fix that affected the parsing of CSS @page rules.