timed graph v2

<!DOCTYPE html xmlns:xlink="https://www.w3.org/1999/xlink">
<meta charset="utf-8">
  <script src="https://d3js.org/d3.v4.min.js"></script>

.links line {
  stroke: #999;
  stroke-opacity: 0.6;
}

.nodes circle {
  stroke: #fff;
  stroke-width: 1.5px;
}

.nodes circle:hover {
  stroke: #ddd;
  stroke-width: 1.5px;
}

a {
    color: #108b99;
    text-decoration: underline dotted;
}

h2 {
    margin-top: 3pt;
    margin-bottom: -5pt;
    text-align: left;
    font-family: 'Alegreya SC', serif;
    font-size: 11pt;
    font-weight: 300;
    letter-spacing: 2.5px;
}
</style>
<body>

</body>

https://d3js.org/d3.v4.min.js