¿Cómo debes usar content_for y ceder?
<div>
<h1> This is the wrapper!</h1>
<%= yield :my_content %>
</div>
Mysterious Macaque
<div>
<h1> This is the wrapper!</h1>
<%= yield :my_content %>
</div>
<% content_for :my_content do %>
This is the content.
<% end %>