html, body {
  height: 100%;
}

body {
  background-color: black;

  margin: 0;
  display: flex;

  /* This centers our sketch horizontally. */
  justify-content: center;

  /* This centers our sketch vertically. */
  align-items: center;

  /* leave it to hide the scrollbars */
  overflow: hidden;
  font-size: 8pt;
}