html{
    height: 100%;
    /*overflow-x: hidden;*/
}

.curtains{
    width: 100%;
    z-index:1;
    position:relative;
}

.curtains>li{
    background: white;
    position: fixed;
    display:block;
    top: 0;
    left: 0;
    width: 100%;
    min-height: 100%;
    overflow: hidden;
    z-index:1;
    -webkit-backface-visibility:hidden; /* Remove if you got display issues */
}
.curtains>li:first-child{z-index:2;}


.curtains>li {
    box-shadow: 0 0px 4px rgba(0,0,0,0.55);
}

.curtains img.curtainBG{
	max-width:100%;
	position:absolute;
    top:0;
    left:0; 
    /* Preserve aspet ratio */
    min-width:100%;
    min-height:100%;
    max-width:none;
}