<style>
  body {
      margin-right: 20%;
      color: black; background: white;
  }
  pre {
      margin-left: 4%;
  }
  pre.code {
      margin-left: 4%;
  }
  
  p {
      width: 800;
  }
  h1.heading {
      text-align: center
  }
  h2.heading {
      text-align: center
  }

  table.images {
	width: 800
  }
</style>

