<html>
  <head>
    <link href="/css/c3.css" rel="stylesheet" type="text/css">
  </head>
  <body>
    <div id="chart1" style="height:300px;"></div>
    <div class="chart2" style="height:150px;"></div>
    <div class="chart3" style="height:150px;"></div>

    <script src="http://d3js.org/d3.v4.min.js" charset="utf-8"></script>
    <script src="/js/c3.js"></script>
    <script>
      var chart1 = c3.generate({
        bindto: '#chart1',
        data: {
          columns: [
            ['data1', 130, 210, 120, 440, 250, 350]
          ]
        }
      });

      var chart2 = c3.generate({
        bindto: '.chart2',
        data: {
          columns: [
            ['data1', 30, 200, 100, 400, 150, 250]
          ]
        }
      });

      var chart3 = c3.generate({
        bindto: document.getElementsByClassName('chart3')[0],
        data: {
          columns: [
            ['data1', 30, 200, 100, 400, 150, 250]
          ]
        }
      });
    </script>
  </body>
</html>
