svg{border:1px solid black;}


.outer{
max-width:1024px;
padding-bottom:20px;
border-bottom:1px solid #808080;
}

.nb{
font-weight:bold;
font-size:80%;
}

.graph_thumbnail{
clear:both;
width:200px;
float:right;
padding-left:20px;
}

.link {
  stroke: #ccc;
}
.link_indirect{
  stroke-dasharray: 5,5;
  }

.node circle {
  fill: #ccc;
  stroke: #fff;
  stroke-width: 1.5px;
}

.node text {
  pointer-events: none;
  font: 10px sans-serif;
}