| TAG | DESCRIPTION |
| <base> | Defines a default address or a default target for all links on a page | <head> | Defines information about the document |
| <link> | Defines the relationship between a document and an external resource |
| <meta> | Defines metadata about an HTML document |
| <script> | Defines a client-side script |
| <style> | Defines style information for a document |
| <title> | Defines the title of a document |