#vis {
  width: 940px;
  height: 600px;
  clear: both;
  margin-bottom: 10px;
}

.tooltip {
	position: absolute;
	top: 100px;
	left: 100px;
  -moz-border-radius:8px;
	border-radius: 8px;
  border: 2px solid #045a8d;
  background: #fff;
	opacity: .9;
  color: black;
	padding: 12px;
	width: 100px;
	font-size: 12px;
	z-index: 10;
}

.tooltip .value {
	font-size: 13px;
  font-weight: bold;
}