content outside of the html tag

i have a webpage, scrollbar is not needed but still i get a scroll bar. and i get a section which is outside of the html tags. there is a brown part color of the body which appear outside of the html i use firebug and when i put my mouse over the html tag it highlight the entire page except коричневая часть внизу

URL страницы ссылка

вот изображение, внизу страницы должна быть черная часть.