<!DOCTYPE html>
<html>
  <head>
    <title>Dane</title>
  </head>
  <body>
    <svg width="600" height="600">
      <circle cx="50" cy="50" r="10"></circle>
      <circle cx="100" cy="50" r="10"></circle>
      <circle cx="150" cy="50" r="10"></circle>
    </svg>

    <script src="https://unpkg.com/d3@7.4.4/dist/d3.js"></script>
    <script src="script.js"></script>
  </body>
</html>
