frame{
	background-color: #999999;
}
body {
	margin:0px;
	border:0px;
}
html{
  overflow: hidden;
  visibility: hidden;
  justify-content: center;
  position: relative;
  border: 0px;
  margin: 0px;
  display:table;
 -webkit-user-select:none;
 -moz-user-select:none;
 -ms-user-select:none;
  user-select: none;
  width: 100%;
}
html.Child {
  top: 0px;
  left: 50%;
  transform-origin: 0px 0px;
  transform: scale(var(--html_scale)) translate(-50%);	
}