{{tmbox| 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|}}} / yes| smallimage = none / [[File:Some image.svg|30px]]| smallimageright = none / [[File:Some image.svg|30px]]| smalltext = A shorter message body text.}}
type
If no type parameter is given the template defaults to type notice. That means it gets a gray border.
image
No parameter = If no image parameter is given the template uses a default image. Which default image it uses depends on the type parameter.
An image = Should be an image with usual wiki notation. 40px - 50px width are usually about right depending on the image height to width ratio. (But the message box can handle images of any size.) For example:
No parameter = If no imageright parameter is given then no image is shown on the right side.
An image = Should be an image with usual wiki notation. 40px - 50px width are usually about right depending on the image height to width ratio. (But the message box can handle images of any size.) For example:
Anything = Any other object that you want to show on the right side.
style
Optional CSS values used by the entire message box table. Without quotation marks " " but with the ending semicolons ;. For example:
style = margin-bottom: 0.5em;
textstyle
Optional CSS values used by the text cell. For example:
textstyle = text-align: center;
text
The message body text.
The small parameters
small
yes = Makes it a smaller right floating message box. This also makes the default images smaller. Note that any data fed to the smallimage, smallimageright and smalltext parameters is only used if "small=yes". To make it so your template also understands the small parameter you can use this code:
small = {{{small|}}}
smallimage
No parameter = If no smallimage parameter is given then this template falls back to use the image parameter. If the image parameter also is empty then a small default image is used.
An image = Should be an image with usual wiki notation. 30px width is usually about right. For example:
none = Means that no image is used. This overrides any image fed to image, when "small=yes".
smallimageright
No parameter = If no smallimageright parameter is given then this template falls back to use the imageright parameter. If the imageright parameter also is empty then no image is shown on the right side.
An image = Should be an image with usual wiki notation. 30px width is usually about right. For example:
Anything = Any other object that you want to show on the right side.
none = Means that no right side image is used. This overrides any image fed to imageright, when "small=yes".
smalltext
A shorter version of the message body text. If no smalltext parameter is given then this template falls back to use the text parameter.
Technical details
If you need to use special characters in the text parameter then you need to escape them like this:
{{tmbox| text =<div>Equal sign = and a start and end brace { } work fine as they are. But here is a pipe {{!}} and two end braces <nowiki>}}</nowiki>. And now a pipe and end braces <nowiki>|}}</nowiki>.</div>}}
This template uses the tmbox CSS classes in MediaWiki:Common.css for most of its looks, thus it is fully skinnable.
This template calls {{tmbox/core}} which holds most of the code for {{tmbox}}, while {{tmbox}} itself does parameter preprocessing.
Internally this meta-template uses HTML markup instead of wiki markup for the table code. That is the usual way we make meta-templates since wiki markup has several drawbacks. For instance it makes it harder to use parser functions and special characters in parameters.
For more technical details see the talk page. Since this template works almost exactly like {{ambox}}, {{imbox}}, {{cmbox}} and {{ombox}} their talk pages and related pages might also contain more details.