This element is no longer recommended. Indicates a comment that will not be
displayed. This element is provided for backward compatibility. When authoring
documents, use the <!-- --> comment element for comments instead.
- An SGML identifier used as the target for hypertext links or for naming
particular elements in associated style sheets. Valid names to script with are
any alphanumeric string that begins with a letter. Valid special characters
include underbar "_".
- This specifies the language to use. The specifier is an ISO standard
- The Title attribute is used to provide advisory information.
Both the start and end tags are required.