.demo_box {
	overflow-x: hidden;
	overflow-y: auto;
	height: 400px;
	border: 1px solid black;
	margin: 10px;
	padding: 10px;
	position: relative;
	white-space: normal;
}

.v_scrollbar {
	position: absolute;
	top: 0px;
	right: 1px;
	width: 18px;
	height: 100%;
	background-color: #EEE;
	opacity: 0.3;
}

.v_scrollbar_move {
	position: absolute;
	top: 0px;
	width: 10px;
	height: 20px;
	background-color: #333;
	cursor: pointer;
	margin: 4px;
}

.end_marker:before,
.end_marker:after {
	clear: both;
	display: inline-block;
	content: ".";
	line-height: 0px;
	height: 0px;
	visibility: hidden;
}

.end_marker {
	width: 100%;
	clear: both;
	float: left;
	height: 20px;
}