D3 Examples - Multiple Ring Chart Router

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<!DOCTYPE html>
<head>
  <meta charset="utf-8">
  <script src="https://cdnjs.cloudflare.com/ajax/libs/d3/3.5.5/d3.min.js"></script>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/d3-tip/0.6.3/d3-tip.min.js">  </script>
  <style>
    body { margin:0;position:fixed;top:0;right:0;bottom:0;left:0; }
    svg { width: 100%; height: 100%; font-size: 10px; overflow-y: scroll; }
    
.d3-tip {
   font-family: 'Raleway', sans-serif;
   font-size: .8em;
   line-height: 1;
   padding: 7px;
   background: black;
   color: lightgray;
   border-radius: 20px;
}
  </style>
</head>
​
​
<body align=center bgcolor=black>
  <div class=dropdown></div>
​
  <svg></svg>
 <script src="karthiviz.js"></script>  
 <script src="main.js"></script>
</body>
​
    