This contains the document head, but you can always omit both the start and end tags for HEAD. The contents of the document head is an unordered collection of the following elements:
The %head.misc entity is used to allow the associated elements to occur multiple times at arbitrary positions within the HEAD. The following elements can be part of the document head:
TITLE, SCRIPT and STYLE are containers and require both start and end tags. The other elements are not containers so that end tags are forbidden. Note that conforming browsers won't render the contents of SCRIPT and STYLE elements.