.bj {
	background-attachment: fixed;
	background-image: url(images/moban_7.jpg);
	background-repeat: no-repeat;
	background-position: center bottom;
}
.ziti {
	font-size: 13px;
	line-height: 200%;
}
.unnamed1 {
	background-image: url(images/bj.gif);
	background-repeat: repeat;
	background-position: center center;
}
.bj2 {
	background-attachment: fixed;
	background-image: url(images/moban_8.jpg);
	background-repeat: no-repeat;
	background-position: bottom;
}