How to display ubuntu releases page the same in apache and nginx?

If you go to you’ll see the usual
Ubuntu releases page. It consists of a header, a footer and the
directory index.

If you go to you’ll see the same
directory served by nginx. They look rather different because nginx
doesn’t send the the header and footer, just the index. This is in
fact what I’d expect. However, how can I make the page display to the
user in the same way as with apache?