body {
  background-color: rgb(0, 0, 0);
  width: 100%;
  height: 100%;
  margin: 0px;
  padding: 0px;
  justify-content: center;
  align-items: center;

}

body{
  width: 100%;
  height: 100%;
  margin: 0px;
  overflow: hidden;
}

div{
  visibility: hidden;
  float: left;
  display: none;
}

canvas {
  display: block;
  margin: 0 auto;
}