.jam-ad {
	margin: 16px 0;
	text-align: center;
	overflow: hidden;
	clear: both;
}

.jam-ad-sidebar {
	margin: 12px 0;
}

/* Small buffer so ad units aren't flush against nav/buttons, cutting down
   on accidental clicks near menus or "next page" controls. */
.jam-ad-top {
	margin-top: 20px;
}

.jam-ad-bottom {
	margin-bottom: 20px;
}