Content Page
In Web site development with ASP.NET, the Content Page is a page that is associated to a Master Page. A Content Page will contain only markup and controls inside Content controls and it cannot have any top-level content of its own. Any Content Page can use controls that specifically override content placeholder sections in the Master Page.
See ASP.NET
See also "Customizing and Managing Your Site's Appearance" on Webreference.com.


