.link {
  stroke:#C0C0C0;
  stroke-opacity: .5;
}
.link.hover{
	stroke:red;
	stroke-opacity:1;
}
.link.selected{
	stroke:red;
	stroke-opacity:1;
}			
.node text {
  pointer-events: none;
  font: 9px Arail;
}
.chart {
	background-color:#eeeeee;
	width: 800px;
	height: 700px;
	border: solid 1px #666666;
}