* {
	margin: 0;
	padding: 0;
	box-sizing: border-box;
  }
  
  body, html{
	width:100%;
	height:100%;
	overflow: hidden;
	background: black;
  }
  
  body {
	top: 0;  
  }
  
  #canvas1 {
	position: absolute;
	place-self: center; 
	
	width: 100%;
	height: 100%;
	border: 3px solid black;
  }