<html>
  <head>
    <link href="/css/c3.css" rel="stylesheet" type="text/css">
  </head>
  <body>
    <div id="chart"></div>
    <script src="http://d3js.org/d3.v4.min.js" charset="utf-8"></script>
    <script src="/js/c3.js"></script>
    <script>
      var chart = c3.generate({
        data: {
          columns: [
            ['padded1', 100],
            ['padded2', 90],
            ['padded3', 50],
            ['padded4', 20]
          ],
          type: 'gauge',
        },
        color: {
          pattern: ['#FF0000', '#F97600', '#F6C600', '#60B044'],
          threshold: {
            values: [30, 80, 95]
          }
        },
        size: {
          height: 320,
        }
      });
    </script>
  </body>
</html>
