Reference index / 컨트롤 상호작용 상태
Active State
A general term for the currently active item, or the CSS state during activation.
When to use it
Tabs, menus, and buttons.
Caveats and distinctions
CSS :active generally describes activation in progress, not an active tab's selected state.
Implementation and classification
아이콘·상태 표시 / 컨트롤 상호작용 상태
Sources and verification status
https://www.w3.org/WAI/ARIA/apg/practices/keyboard-interface/
Source scope and verification status describe the existing catalog record. Publishing this page does not independently re-verify the latest library version, license, or production behavior.