html, body {
  height: 100%;
  /* background-color: lightsteelblue; */
  /* background-color: whitesmoke; */
  background-color: #fefefe;
  /* background-color: rgb(18, 11, 9); */
}

body {
  margin: 0;
  display: flex;

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

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

  overflow: hidden;
}