The various wiki projects (meta, wiki etc.) verify a user when he tries to change his email address by asking him to enter his password. The page similar to the login page is used for this. It does look nice except for one place, the "Keep me logged in" check box. It shouldn't be shown when a logged-in user is being verified as it seems meaning less in that context. It's better to avoid showing the check box altogether when the user is logged in.