Board Thread:Support Requests - Designing Your Wiki/@comment-33281220-20180418205507/@comment-9605025-20180421234527

First off, it looks like you haven't closed the table. Unless you are intending to make this the start of a larger table, I suggest making sure to close the table properly. Otherwise you could end up with some unexpected visual results.

To make it collapsed by default, add "mw-collapsed" to the table's class.

I am still not clear on what you mean by "stay at the bottom of the page". It isn't floating or anything so it just goes wherever you put it. If you put it at the top, it will be at the top. If you put it at the bottom, it will be at the bottom.