#box {
	position: fixed;
	left: 100px;
	top: 100px;
	border: 1px solid #aaa;
	border-radius: 5px;
	width: 400px;
	height: 300px;
}

#title {
	width: 100%;
	height: 25px;
	line-height: 25px;
	background: #aaa;
	color: #fff;
	padding: 0 10px;
	box-sizing: border-box;
	cursor: move;
}

#title span:last-child {
	float: right;
	cursor: pointer;
}

#out {
	height: 2000px;
}