This built in snippet renders messages (Errors, Warnings, Notices) in a div. Typically it is used in templates as a place holder for any messages that are not associated with an ID. Setting the attribute showAll to true will render all messages, with and without an ID. This will lead to duplicate messages if additionally the Msg built in snippet is used to show messages associated with an ID. E.g. (child nodes are optional)

 <lift:Msgs showAll="false">
   <lift:error_msg>Error!  The details are:</lift:error_msg>
   <lift:error_class>errorBox</lift:error_class>
   <lift:warning_msg>Whoops, I had a problem:</lift:warning_msg>
   <lift:warning_class>warningBox</lift:warning_class>
   <lift:notice_msg>Note:</lift:notice_msg>
   <lift:notice_class>noticeBox</lift:notice_class>
 </lift:snippet>