body {
	margin: 0px; 
	padding: 0px;
}

#line {
	position: absolute;
	display: block;
	/* top: 20vh;
	left: 50vw; */
	/*
	width: 50vw;
	height: 50vh;*/ /*
	background-color:#ff0;*/
}

#measurement {
	display: none;
}