div.demoElement {

position:absolute; 
top:0; 
left:0;
z-index:5;
	width: 100%;
	height: 100%;
}

div.demoElementHeight {
	height: 100%;
	width: 100%;
position:absolute; 
}

.myClass {
	width: 100%;
	height: 100%;

position:absolute; 


}