Dùng bản mẫu không đúng {{2}} - Xem chi tiết Bản mẫu:2.Trang Mô đun:Documentation/styles.css không có nội dung.Templates {{1}}, {{2}}, {{3}} etc warn readers/editors that a typo exists in the page they are reading/editing. If {{2}} is called, you probably meant the parameter 2 (as {{{2}}} with triple braces), but in fact only double braces were used, invoking {{2}}. In addition to a warning, it also adds pages to Category:Templates with incorrect parameter syntax.However, the most problems have been caused by omitting the first brace "{" of a parameter and getting {{2}}}, as invoking Template:2 +"}" rather than parameter 2. This can be an insidious problem, especially when the transclusion of Template:2 is hidden, so that the effect is invisible to the person editing a page. For that reason, Template:2 now issues a warning to the user.With that warning, the prior invisible access to Template:2 can now be understood to be a formerly unseen problem coded within a page.Periodically, people check what-links-here to see if anyone has accidentally invoked Template:2.