module Playbook::Display

def display_props
  selected_props = display_options.keys.select { |sk| try(sk) }
  responsive = selected_props.present? && try(:display).is_a?(::Hash)
  css = ""
  if responsive
    display_value = send(:display)
    display_value.each do |key, value|
      css += "display_#{key}_#{value} " if display_size_values.include?(key.to_s) && display_values.include?(value.to_s)
    end
  else
    selected_props.each do |k|
      display_value = send(k)
      css += "display_#{display_value}" if display_values.include? display_value
    end
  end
  css unless css.blank?
end