A content element is a self-contained unit in typo3. They are the building block you can use to build up a web page.
In this section you will find all content elements and their occurances available in this typo3 instance.
Since this typo3 instance is built flexible it is possible to create combinations that were not intendet by design and concept. If you use combinations other than the ones listed here, they may result in a faulty display in the frontend.