module Playbook::Spacing

def max_width_props
  selected_mw_props = max_width_options.keys.select { |sk| try(sk) }
  return nil unless selected_mw_props.present?
  selected_mw_props.map do |k|
    width_value = send(k)
    "max_width_#{width_value}" if max_width_values.include? width_value
  end.compact.join(" ")
end