body {
  margin: 0;
  overflow: hidden;
}

* {
  touch-action: manipulation;
  pointer-events: none;
}

#btn-fullscreen {
  position: fixed;
  bottom: 1rem;
  right: 1rem;
  pointer-events: all;
  cursor: pointer;
  background: none;
	color: inherit;
	border: none;
	padding: 0;
	font: inherit;
	outline: inherit;
}

.hide{
  display: none;
}