<h3><a href="#">Section 1</a></h3>
<%= f.inputs do %>
  <%= f.input :title %>
  <%= f.input :excerpt, :as => :text %>
  <%= f.input :body, :as => :text %>
  <%= f.input :slug %>
<% end %>
<div class="part">
  <h3><a href="#">Section 1</a></h3>
  <%= f.inputs do %>
    <%= f.input :title %>
    <%= f.input :excerpt, :as => :text %>
    <%= f.input :body, :as => :text %>
    <%= f.input :slug %>
    <%= f.remove_link "Remove" %>
  <% end %>
</div>

Add link for removing a part
Add link for removing a part
