docs: def child_static(self, context):
          """
          Serve a container page for static content for Mantissa and other
          offerings.
          """
          offeringTech = IOfferingTechnician(self.siteStore)
          installedOfferings = offeringTech.getInstalledOfferings()
          offeringsWithContent = dict([
                  (offering.name, offering.staticContentPath)
                  for offering
                  in installedOfferings.itervalues()
                  if offering.staticContentPath])
  
          # If you wanted to do CSS rewriting for all CSS files served beneath
          # /static/, you could do it by passing a processor for ".css" here.
          # eg:
          #
          # website = IResource(self.store)
          # factory = StylesheetFactory(
          #     offeringsWithContent.keys(), website.rootURL)
          # StaticContent(offeringsWithContent, {
          #               ".css": factory.makeStylesheetResource})
          return StaticContent(offeringsWithContent, {})