.content img{width: 100%;}
.content{width: 1200px;margin: auto;}
.nav_main p:last-child{border-bottom: 2px solid #000;}
.footerLeft{
	float: left;
	width: 50%;
	text-align: left;
}
.footerCen{
	width: 1100px;
	margin: auto;
}