[Deff]

Эту часть поправьте

#main-bg{
	background: transparent url("http://prozaik.16mb.com/html5/q1/images/bg_wrap0.jpg") no-repeat fixed center center;
        background-size:cover;
    display: block;
    min-height: 100%;
    min-width: 100%;
    position: fixed;
	z-index: 5;		
	overflow: auto;
}