An implicit document type is used for content assist (CTRL+Spacebar), the Properties view, and other editing contexts when no DOCTYPE declaration is specified in an HTML, XHTML, or JSP file. Typically, this feature is used for a fragment (partial document) that can be included in other pages using JSP include or server-side include.
To assign an implicit document type to an HTML, XHTML, or JSP fragment, do the following: