html,
body {
  width: 100%;
  height: 100%;
  margin: 0;
  overflow: hidden;
  background: #ffffff;
  touch-action: pan-x pan-y pinch-zoom;
}

#canvasStage {
  position: absolute;
  top: 0;
  left: 0;
  width: 1920px;
  height: 1080px;
  transform-origin: 0 0;
  will-change: transform;
}

.contentIframeClass {
  display: block;
  width: 1920px;
  height: 1080px;
  border: 0;
}

#dummyIFrame,
.prev,
.next {
  display: none;
}