div.advertisement_760 {
	height: 100px;
	width: 800px;
	margin-top: 20px;
	margin-left: 130px;
	padding-bottom: 20px;
}

div.advertisement_300 {
	margin-bottom: 10px;
	text-align: center;
}

* html div.advertisement_300 {
	margin-top: 0;
}