html, body {
  height: 100%;
}

body {
  margin: 0;
  display: flex;

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

  /* This centers our sketch vertically. */
  align-items: center;
  /*background-color: #000;*/
  overflow: hidden;
  /*background-image: url("images/background.jpg");*/
}

div{
  position: relative;
  margin: 0 auto;
  top: 0;
  display: block;
}

canvas{
  width: 100%;
  height: auto;
}

/*#sketch-holder{
	background: #ff0000;
	width: 80%;
	height: auto;
	overflow: hidden;
}*/