解决项目样式冲突问题

app/views/layouts/base_projects.html.erb

@@ -12,7 +12,7 @@
   <%= favicon %>
   <%= javascript_heads %>
   <%= heads_for_theme %>
-  <%= stylesheet_link_tag 'public', 'pleft', 'project','courses','prettify','jquery/jquery-ui-1.9.2','header','repository' %>
+  <%= stylesheet_link_tag 'public', 'pleft', 'project','prettify','jquery/jquery-ui-1.9.2','header','repository' %>
   <%= javascript_include_tag 'cookie','project', 'header','prettify','select_list_move','attachments' %>
   <%= call_hook :view_layouts_base_html_head %>
   <!-- page specific tags -->