Template:Header/doc

The Header template is used to provide a simple way to organise pages. Please do not use this template on mainspace, as it is not intended to be used in mainspace. However, this template may be used in other places, such as the User namespace and on some project pages.

Plain
produces this:

With icon and image link
produces this:

Fade down
You also have the option of using a completely different style for the table, if you define "fadedown" for parameter one. This would produce something similar to the following table.

The syntax for that table is also similar to the regular format, only it lacks the image-related parameters, shown below.