div.box_ad {
	text-align: center;
	padding: 10px;
	border: 1px solid #CCCCCC;
	margin-bottom: 10px;
	font-size: 14px;
	line-height: 18px;
}

div.box_ad img {
	text-align: center;
	clear: both;
	margin: 10px;
}