<!DOCTYPE html>
<html>
  <head>
    <title>CodeLearningResourcesManager</title>
    <%= csrf_meta_tags %>

    <%= stylesheet_link_tag    'application', media: 'all', 'data-turbolinks-track': 'reload' %>
    <%= javascript_include_tag 'application', 'data-turbolinks-track': 'reload' %>
  </head>

  <body>
    <%= render '/layouts/navigation' %>
    <%= render '/layouts/messages' %>
    <%= yield %>
    <%= render '/layouts/current_user' %>
  </body>
</html>

<!DOCTYPE html>
<html>
  <head>
    <title>CodeLearningResourcesManager</title>
    <%= csrf_meta_tags %>

    <%= stylesheet_link_tag    'application', media: 'all', 'data-turbolinks-track': 'reload' %>
    <%= javascript_include_tag 'application', 'data-turbolinks-track': 'reload' %>
  </head>

  <body>
    <%= render '/layouts/navigation' %>
    <%= render '/layouts/messages' %>
    <div class="container-fluid" id="main">
      <%= yield %>
    </div>
  </body>
</html>

Add bootstrap container to yield.
Add bootstrap container to yield.
