reply(Request) :-
        reply_html_page(title('Welcome'),
                        [ h1('Welcome'),
                          p('Welcome to our ...')
                        ]).

The header and footer of the page can be hooked using the grammar-rules user:head//2 and user:body//2. The first argument passed to these hooks is the Style argument of reply_html_page/3 and the second is the 2nd (for head//2) or 3rd (for body//2) argument of reply_html_page/3. These hooks can be used to restyle the page, typically by embedding the real body content in a div. E.g., the following code provides a menu on top of each page of that is identified using the style myapp.

:- multifile
        user:body//2.

user:body(myapp, Body) -->
        html(body([ div(id(top), \application_menu),
                    div(id(content), Body)
                  ])).

Redefining the head can be used to pull in scripts, but typically html_requires//1 provides a more modular approach for pulling scripts and CSS-files.