gistfile1.ru

# In helper file:

class ContentBox < BlockHelpers::Base

  def initialize(title)
    @title = title
  end
  
  def display(body)
    %(
    <div class="content_box">
      #{content_tag(:h3, @title) if @title}
      <div class="inner">
        #{body}
      </div>
    </div>
    )
  end
end

# In view:

<% content_box 'Thingy' do %>
  Some content here
<% end %>

# Then style '.content_box h3' and '.content_box .inner' as you wish in CSS