[Milkovich]

I was wondering: My user page is getting a bit cluttered with all the pages I have contributed to, so I would like to add collapsible tables to shorten the whole thing.

Question: I tried adding

{| class="wikitable collapsible collapsed"
! Header
|-
| Text
|-
| Text
|}

But this code is not working.

I'd be neat to know how to do this.