@@ -8,10 +8,11 @@
 @; without any warranty.
 
 @(require "scribble-helpers.rkt")
 @(require (for-label "../pollen.rkt"
                      "../dust.rkt"
+                     "../crystalize.rkt"
                      racket/base
                      racket/contract
                      racket/string
                      txexpr
                      pollen/tag
@@ -112,10 +113,18 @@
 @deftogether[(@defproc[(section    [element xexpr?] ...) txexpr?]
               @defproc[(subsection [element xexpr?] ...) txexpr?])]
 
 Create second- and third-level headings, respectively. This is counting the article's title as the
 first-level header (even if the current article has no title).
+
+@defproc[(block [element xexpr?] ...) txexpr?]
+
+A container for content that should appear grouped together on larger displays. Intended for use in
+Series pages, where the template is very minimal. You would want output from
+@racket[list-short/articles] to appear inside a @racket[block], but you would want output from
+@racket[list-full/articles] to appear outside it (since each article effectively supplies its own
+block). Only relevant to HTML output.
 
 @deftogether[(@defproc[(link [link-id stringish?] [link-text xexpr?]) txexpr?]
               @defproc[(url  [link-id stringish?] [url string?]) void?])]
 
 All hyperlinks are specified reference-style. So, to link some text, use the @code{link} tag with