Thread:Project:Support desk/Formatting table borders with "outset"

I would like to give my tables a nice looking "outset" outer border.

It's easy to format regular text this way by using

sdgsdfg

(I can't get either "nowiki" or "code" to work here, so you'll have to click edit to view the source, sorry.)

But I can't get it to work in a table. I've tried:

But that doesn't work, as you can see.

What am I doing wrong?