Sigle column on page

Hello,

I would like to have single page in normal width – without this blank space below page name. The best would be like here: http://ilsemul.com/about/ where page title is above the content.

for now my page looks like that: http://ksz-zefir.pl/pliki/

I cannot find the solution over many topics. I trided to add many things in additional css, but without success.

Thanks for all help!