#ad_tag{
	position: relative;overflow: visible;
}

#ad{
	-webkit-transition: opacity 0.8s ease-in;
	-o-transition: opacity 0.8s ease-in;
	transition: opacity 0.8s ease-in;
	position: fixed;
	 bottom: 0;  
	 z-index:  10001;
}
/*#ad a{
	position: relative;
}*/
#ad span.clo-btn{
	display: inline-block;
	width: 1.5em;
	height: 1.5em;
	font-size: 1em;
	color: #5a5a5a;
	position: absolute;
	top: -1.5em;
	line-height: 1.5em;
	right: -1.5em;
	background-color: #ffffff4d;
	border:1px solid silver;
	text-align: center;
	border-radius: 50%;
	-o-border-radius: 50%;
	-ms-border-radius: 50%;
	-webkit-border-radius: 50%;
	-moz-border-radius: 50%;
	cursor: pointer;
}
#ad span.clo-btn:hover{
	background-color: #fff;
}