#slideshow { 
    margin: 50px auto; 
    position: relative; 
    width: 300px; 
    height: 200px; 
    padding: 10px; 
    box-shadow: 0 0 20px rgba(0,0,0,0.4); 
}

#slideshow > div {
	position: absolute;
	top: 1px;
	left: 1px;
	right: auto;
	bottom: auto;
	width: 320px;
	visibility: visible;
}