Hello

I have a site www.limpopo-nsk.ru and on several of the pages I features (like logo and glass buttons) which look o.k. on my pc (where I built the pages) but show background of the shape of the element on other pages, such as the logo Limpopo or the glass buttons on page www.limpopo-nsk.ru/kindergarten_forms.html

Can anyone tell me how to fix that?
Thanks