.main_container {
	width: 960px;
	margin-top: 0px;
	margin-right: auto;
	margin-bottom: 0px;
	margin-left: auto;
	z-index: 10;
}
.header_style {
	width: 960px;
	z-index: 1;
}
.footer_style {
	width: 990px;
}
.body_style {
	width: 960px;
}
.clear {
	height: 20px;
	width: 960px;
}