html, body 
{ 
	margin: 0; 
	width: 100%; 
	height: 100%; 
	overflow: hidden;
}
#scoreboard {
	position: absolute;
	top: 10px;
	width: 100%;
	z-index: 100;
	font-size: 40px;
	color: white;
	display:block;
}
#gameover {
	z-index: 100;
	color: white;
    font-size: 120px;
	position: fixed;
	top: 50%;
	left: 50%;
	transform: translate(-50%, -50%);
}