def embedded_image_stylesheets(packages, options)
      datauri_tags = tags_with_options(packages, options) {|p| Jammit.asset_url(p, :css, :datauri) }
      ie_tags = Jammit.mhtml_enabled ?
                tags_with_options(packages, options) {|p| Jammit.asset_url(p, :css, :mhtml) } :
                packaged_stylesheets(packages, options)
      [DATA_URI_START, datauri_tags, DATA_URI_END, MHTML_START, ie_tags, MHTML_END].join("\n")
    end
def embedded_image_stylesheets(packages, options)
      datauri_tags = tags_with_options(packages, options) {|p| Jammit.asset_url(p, :css, :datauri) }
      ie_tags = Jammit.mhtml_enabled ?
                tags_with_options(packages, options) {|p| Jammit.asset_url(p, :css, :mhtml) } :
                packaged_stylesheets(packages, options)
      [DATA_URI_START, datauri_tags, DATA_URI_END, MHTML_START, ie_tags, MHTML_END].join("\n")
    end
HTML tags for the 'datauri', and 'mhtml' versions of the packaged
 stylesheets, using conditional comments to load the correct variant.