Possible elements:
- title
- The title of the document.
- script
- Defines a script to be associated with the Web page. See other course
- style
- Defines a style sheet to be used by the document. Already covered.
- link
- Defines document relationships.
- base
- resolves relative URLs.
- meta
- Defines a set of metadata associated with the document. It is of use to browsers, search engines, editors etc.
