html,
body,
#responsive-canvas {
  display: block;
  margin: 0;
  padding: 0;
  overflow: hidden;
  display: flex;
  justify-content: center;
  align-items: center;
  overflow: hidden;
  background-color: rgb(255, 255, 255);
}

#defaultCanvas0 {
  display: none;
  margin: 0 auto;
  overflow: hidden;
  align-items: center;
  justify-content: center;
  background-color: #111;
}


#responsive-canvas {
  position: relative;
  text-align: center;
}