#slider {
	position: relative;
	width: 640px;
	height: 480px;
	margin: auto;
	overflow: hidden;
	border: 5px solid #fff;
	box-shadow: 0px 0px 5px 0px #888;
}
#slider img {
	width: 100%;
	height: 100%;
}
#slider .navigation {
	position: absolute;
	bottom: 0;
	left: 0;
	text-align: center;
	z-index: 99;
	margin: 0;
	width: 100%;
	list-style: none;
	padding: 0;
}
#slider .navigation li {
	display: inline-block;
	background: #fff;
	width: 10px;
	height: 10px;
	margin: 5px;
	border-radius: 10px;
	box-shadow: 0px 0px 5px 0px #444;
}
#slider .navigation li.active {
	box-shadow: inset 0px 0px 0px 3px #fff;
	background: #444;
}
#slider .navigation li:hover {
	cursor: pointer;
}

.slider-img
{
  height: 50%; 
  background-position: center;
  background-repeat: no-repeat;
  background-size: cover;
}