Documentation
A generic message box that can be used on any type of page.
There are more other, specialized versions of this template, such as {{Ambox}} for articles, {{Tmbox}} for talk pages, {{Imbox}} for file pages, {{Cmbox}} for category pages and {{Ombox}} for other types of pages.
Full documentation: wikipedia:Template:Mbox
Paramaters
List of all parameters:
{{Mbox | name = name of the template | demospace = {{{demospace|}}} / main / talk / file / category / other | type = speedy / delete / content / style / notice / move / protection | image = none / [[File:Some image.svg|40px]] | imageright = [[File:Some image.svg|40px]] | style=CSS values | textstyle=CSS values | text = The message body text. | small = {{{small|left}}} / left / no | smallimage = none / [[File:Some image.svg|30px]] | smallimageright = none / [[File:Some image.svg|30px]] | smalltext = A shorter message body text. | plainlinks = no }}