[null,null,["Ultimo aggiornamento 2024-09-03 UTC."],[[["SiteNavigationElement extends the WebPageElement type and is used for markup within Gmail."],["This element type does not have any unique properties, inheriting its functionality from WebPageElement."],["It's specifically for defining navigation elements within a webpage, as understood by Gmail's markup system."]]],["The `SiteNavigationElement` type, which extends `WebPageElement`, is defined. Crucially, this type is noted to have no specific properties associated with it. The key information is the existence of the `SiteNavigationElement` type and its relationship to `WebPageElement`, alongside the specification that it lacks any unique properties.\n"]]