Template:Panels

Usage

{{Panels
|tab_1         = name of tab (i.e., Something)
|content_1     = contents of panel (i.e., Here's some content about something.)
|tab_2         = name of tab (i.e., Another Thing)
|content_2     = contents of panel (i.e., Content about this other thing.)
[...]
|tab_N         = name of tab (i.e., Something Else)
|content_N     = contents of panel (i.e., Some information for this last thing too.)
}}

You can have as many tabs/panels as you like, tab_1 through tab_N, but you don't need more than two (well, technically you only need one, but then why bother?). It may also get cluttered if you have too many tabs, but that's a matter of taste.

content_# can be as complicated as you like, as long as nothing is left open — with one major exception. Wiki table markup will not work in this template. If you want a table in one section, you have three options:

1. Use Template:Table — instructions on that page, but it's fairly simple.
2. Use html; i.e., <table><tr><td>First Cell</td><td>Second Cell</td></tr></table>, etc.
3. In the content slot you want, call a subpage, such as {{:{{PAGENAME}}/Contacts}} — you can put a wiki-markup table in that subpage and it will work fine. (n.b.: {{PAGENAME}} there is not a placeholder.)

The appearance can be adjusted more by writing custom css.