D3 Examples - Broken Plotting Code

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<!DOCTYPE html>
<html>
  <head>
    <meta charset="utf-8">
    <title>Scratch</title>
​
    <style>
.graticule {
  fill: none;
  stroke: #777;
  stroke-width: .5px;
  stroke-opacity: .5;
}
​
.land {
  fill: #222;
}
​
.boundary {
  fill: none;
  stroke: #fff;
  stroke-width: .5px;
}
​
.pin {
  fill: red;
}
    </style>
  </head>
  <body>
    <section id="graph">
    </section>
​
    <script src="https://d3js.org/d3.v3.min.js" charset="utf-8"></script>
    <script src="https://d3js.org/topojson.v1.min.js"></script>
    <script src="https://ajax.googleapis.com/ajax/libs/jquery/1.10.1/jquery.min.js"></script>
    <script src="./main.js"></script>
​
    <script type="text/javascript">
    </script>
  </body>
</html>
​
    