Never Use Or Overload Reserved CSS Ids
The following IDs are used by 'ERP5 XHTML Style' to define specific page blocks.
This list must be provided to custom style Web designers to prevent them from
using an existing ID for a different page element.
#main_form // The single form at the root of the page
#bars // The group of bars in non web mode
#main_bar // The main bar
#context_bar // The context bar
#status // The group of status information in non web mode
#breadcrumb // The breadcrumb of the page
#logged_in_as // The login information
#transition_message // The transition message (error, confirmation, etc.)
#master // The group of form content and controls
#main_content // The main content group (in Web mode)