A header combines the functionality of a page title and a control bar for your page. Due to its compact design and versatility it is often used in mobile pages. As a lay-out feature it can only be used in a [lay-out|.
Headers consist of three distinct elements: a left drop-zone, a right drop-zone, and a page title. The drop-zones are intended for confirmation buttons, such as a save and cancel button, but can easily be appropriated for any number of alternate implementations. The page title derives its value from the page title setting of the page being displayed.
A basic lay-out utilizing a header to give the page structure.
An edit page derived from the lay-out above. The page title it automatically adjusted to match that of the page and the placeholders have been used to add a save and cancel button, replacing the need to add a control bar to the data view.