Example PDF style declaration

stylesheet.rb

module Stylesheet
  extend ActiveSupport::Concern
  include PdfStylesheet

  PAGE_BREAK_RULES = [nil, 600, 200, 200, 100, 100].freeze

  MARGIN_TOP_MM    = 25
  MARGIN_BOTTOM_MM = 30
  MARGIN_LEFT_MM   = 25
  MARGIN_RIGHT_MM  = 25
  COURIER_NEW  = Rails.font_path('Courier Prime.ttf')
  COURIER_BOLD = Rails.font_path('Courier Prime Bold.ttf')

  included do
    style :document do
      margin 0
      top_margin mm2pt(MARGIN_TOP_MM)
      bottom_margin mm2pt(MARGIN_BOTTOM_MM)
      left_margin mm2pt(MARGIN_LEFT_MM)
      right_margin mm2pt(MARGIN_RIGHT_MM)
    end

    style :root do
      font COURIER_NEW
    end

    style :header1 do
      bottom_padding(-10)
      top_padding 0
    end

    style :header2 do
      size 20
      bottom_padding 5
    end

    style :strong, :em do
      font COURIER_BOLD
    end

    style :header3 do
      size 15
      styles [:bold]
      font COURIER_NEW
      top_padding 0
      bottom_padding 0
    end
  end
end