3 namespace Sabberworm\CSS\Property
;
5 use Sabberworm\CSS\Renderable
;
6 use Sabberworm\CSS\Comment\Commentable
;
8 interface AtRule
extends Renderable
, Commentable
{
9 const BLOCK_RULES
= 'media/document/supports/region-style/font-feature-values';
10 // Since there are more set rules than block rules, we’re whitelisting the block rules and have anything else be treated as a set rule.
11 const SET_RULES
= 'font-face/counter-style/page/swash/styleset/annotation'; //…and more font-specific ones (to be used inside font-feature-values)
13 public function atRuleName();
14 public function atRuleArgs();