/*广告位  header 1*/
.ad_head{
	width: 750px;
	height: 75px;
	position: absolute;
	top: 0px;
	left: 280px;
}


/**/
.adhiddle{
	width: 1500px;
	height: 60px;
	position: relative;
}
.adhiddle_div{
	width: 450px;
	height: 70px;
	float: left;
	margin-left: 20px;
	margin-right: 20px;
}