discourse/app/helpers/user_notifications_helper.rb

module UserNotificationsHelper

  def indent(text, by=2)
    spacer = " " * by
    result = ""
    text.each_line do |line|
      result << spacer << line
    end
    result
  end

  def correct_top_margin(html, desired)
    fragment = Nokogiri::HTML.fragment(html)
    if para = fragment.css("p:first").first
      para["style"] = "margin-top: #{desired};"
    end
    fragment.to_html.html_safe
  end

end