I've looked around, and it looks like there is no way to lock the first row of a mediawiki table. By freezing, I mean, like how you lock the top row of a spreadsheet table. This seems like a very desirable feature when you're creating a table with a large number of rows, so the user doesn't have to scroll to the top to see the column name.
Does anyone know of a way to lock the header row of the table so it would just float there even when you scroll to the bottom of the long table?