HTML-Heading

The Document Heading

The document head container is not a required element, but a proper head can greatly increase the usefulness of a document. The purpose of the head is to provide information to the application that is interpreting the
document. With the exception of the TITLE element, the elements within the head element are not seen by the reader of the document.

Elements within the head element do the following:
   Provide a title for the document.
   
   Lay out the relationships between multiple documents.
   
   Tell a browser to create a search form.
   
   Provide a method for sending special messages to a specific browser or other viewer.