.content{
	width:100%;
	min-height:270px;
}
.center_content{
	width:1000px;
	min-height:270px;
	margin:0 auto;
}
.jian_center{
	width:279px;
	height:250px;
	float:left;
}
.jian_center_top{
	width:279px;
	height:41px;
	background:url(../images/jian.jpg);
}
.jian_center_bottom{
	width:279px;
	height:82px;
	margin-top:15px;
	letter-spacing:1px;
	line-height:20px;
}
.jian_center_bottom img{
	margin-bottom:15px;
}
.pro_center{
	width:376px;
	height:250px;
	float:left;
	margin-left:31px;
}
.pro_center_top{
	width:376px;
	height:41px;
	background:url(../images/pro.jpg);
}
.pro_center_bottom{
	width:376px;
	height:82px;
	margin-top:15px;
}
.lian_center{
	width:314px;
	height:250px;
	float:left;
}
.lian_center_top{
	width:314px;
	height:41px;
	background:url(../images/lian.jpg);
}