body {
	margin: 0px; padding: 0px;
}
#window {
	background: url("heibg.png") left top; left: 0px; top: 0px; width: 100%; height: 100%; display: none; position: fixed; z-index: 10000; _position: absolute;
}
#float_window {
	padding: 0px; left: 50%; top: 50%; position: absolute; z-index: 20001;
}
#float_window .closewindow {
	background: url("btn_close.png") no-repeat left bottom; width: 52px; height: 52px; position: absolute;
}
#float_window .closewindow:hover {
	background-position: left top;
}
#video {
	background: rgb(0, 0, 0); height: 600px;
}