Semantics
A type of live region with important and usually time-sensitive information, used to convey messages that may be immediately important to users.
Abstract Role
Live RegionRepresents dynamic content or an announcement, typically updated as a result of an external event when user focus may be elsewhere.
Content Category
Flow ContentAn element that structures and organizes the body of a web document.
Allowed Descendants
Flow Children Allowed
No main element descendants allowed.
Usage
Elements that can designate the role in HTML:
section[role=alert]div[role=alert]custom-element[role=alert]