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<!doctype html>
<html>
<head>
  <title>2D Visibility</title>
  <link rel="stylesheet" href="css/main.css">
</head>
<body>
  <figure>
    <canvas id="c"></canvas>
    <figcaption>
      <a href="https://github.com/toblux/visibility-2d/">View Source on GitHub</a>
    </figcaption>
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