html, body { 
background-color: #FFFFFF;
height: 100%;       
margin: 0px;
}

#page_container {
top: 0px;
left: 0px;
width: 100%;
height: 100%;
position: absolute;
overflow: hidden;
}

#activeBG {
top: 0px;
left: 0px;
width: 100%;
height: 100%;
position: absolute;
}