A Page Element represents a container for content that displays on the page. Each Page Element has an Element, where the Page Element represents the placement on the page within Sitebuilder, and the Element can be one of several different types, such as a TextBlock or a Photo which contains the actual content displayed in the Page Element on your site.
A Page Element belongs to a Layout Column, a Layout Container, and a Content Node. A Page Element has one Element, which can be one of several different types: Comment Stream, Link, PageDivider, Photo, TableBuilder, TextBlock, Video, Mirror, News Aggregator, ExternalVideo, or UploadedVideo.
Page Elements are created and deleted concurrently with their Elements.