html, body, div, ul, li, p, img, h1, h2, h3, h4, h5, h6 {
	position: relative;
	margin: 0;
	border: 0;
	padding: 0;
}

body {
	font-family: helvetica, verdana, sans;
	overflow: hidden;
	background: #111;
}

#gallery {
	margin: 200px;
	position: absolute;
	width: 2568px;
}

ul {
	list-style-type: none;
}

li {
	display: inline-block;
	vertical-align: top;
	margin-right: 1px;
	margin-bottom: 1px;
	background: #000;
	height: 240px;
	width: 320px;
	cursor: pointer;
}

li a {
	height: 160px;
	width: 240px;
	overflow: hidden;
	display: block;
	margin: 40px auto;
}

li img {
	z-index: 20;
}

a {
	color: #000;
	text-decoration: none;
	cursor: pointer;
}

.left, .right {
	position: absolute;
	top: 43%;
	width: 40px;
	height: 70px;
	background-color: rgba(0, 0, 0, .7);
	background-repeat: no-repeat;
	cursor: pointer;
	z-index: 1050;
}

.left {
	left: 0;
	background-image: url("left.gif");
	background-position: 6px 9px;
	border-radius: 0 10px 10px 0;
}

.right {
	right: 0;
	background-image: url("right.gif");
	background-position: 9px 9px;
	border-radius: 10px 0 0 10px;
}

.overlay {
	position: absolute;
	opacity: 0;
	z-index: 50;
	left: 0;
	top: 0;
}

.hidden {
	display: none;
}