tree
A type of list that may contain sub-level nested groups that can be collapsed and expanded.
Document structure roles describe structures that organize content in a page. Document structures are not usually interactive.
Description
A type of list that may contain sub-level nested groups that can be collapsed and expanded.
To be keyboard accessible, authors SHOULD manage focus of descendants for all instances of this role, as described in Managing Focus.
Elements with the role tree have an implicit aria-orientation value of vertical.
Example
Characteristics
Semantic HTML
Reference