<html>
<head>
<style>
  body {
    margin: 0;
  }
  .container {
    height: 2000px;
    overflow: hidden;
    width: 50%;
    height: 50%;
    background-image: url('resources/green-blue.png');
    background-attachment: fixed;
    background-repeat: no-repeat;
    background-size: 300px;
  }
</style>
</head>
<body>
  <div class="container"></div>
</body>
</html>