$page
Whether the content is for a page.
This mode is applied by html.content.pre
after calling
html.content.pre.custom
. Importing stylesheets can use this to add
additional content for specific types of input elements before the content
of a page or section. If the $page
parameter is true, then this template
is being called on an output page. Otherwise, it is being called on a section
within a page.