.adv_top{ width: 100%;
	height: 80px;
	position: relative; 
	overflow: hidden;
}
.adv_top .adv_top_coloe{ width: 24px; 
	height: 24px;
	position: absolute;
	top: 30px;
	right: 20px;
	z-index: 5;
}

.adv_topImg{ position: absolute;
	top: 0;
	left: 50%;
	width: 1920px;
	overflow: hidden;
	height: auto;
	margin-left:-960px; 
	z-index: 4;
 }

.adv_index{ width: 1200px; }
.adv_index img{ border-radius: 5px; }