:open and :closed pseudo-classes

[josepharhar]

Request for Mozilla Position on an Emerging Web Specification

• Specification title: :open and :closed pseudo-classes
• Specification or proposal URL (if available): https://drafts.csswg.org/selectors-4/#open-state
• Explainer URL (if available):
• Proposal author(s) (@-mention GitHub accounts):
• Caniuse.com URL (optional):
• Bugzilla URL (optional):
• Mozillians who can provide input (optional):
• WebKit standards-position: :open and :closed pseudo-classes WebKit/standards-positions#413

Other information

There is a corresponding HTML spec PR here: whatwg/html#10126