body {
	margin: 0;
}
#container {
	width: 320px;
	height: 320px;
	margin: 0 auto;
	position: absolute;
	top: 50%; left: 50%;
	margin: -160px 0 0 -160px;
}
.g {
	float: left;
	position: absolute;
}
.s {
	height: 16px;
	overflow: hidden;
}
.scrollbar {
	height: 300px;
	width: 16px;
	overflow: auto;
}
.scrollbar div {
	height: 600px;
}