hiddenexpanded
Hiddenexpanded is a user interface pattern in which additional content remains concealed by default but can be revealed through a user action. The term blends hidden and expanded to describe a single control that toggles the visibility of a target region. It is commonly used to support progressive disclosure, keeping interfaces compact while providing access to details, options, or related content when requested by the user.
In practice, a hiddenexpanded interaction is typically initiated by a control such as a button or link.
Common considerations include ensuring keyboard operability, managing focus when content is revealed, and keeping the control
Hiddenexpanded is not a formal standard but appears in UI/UX discussions as part of progressive disclosure