body {
	-webkit-touch-callout: none;
	-webkit-text-size-adjust: none;
	-webkit-user-select: none;
	font-family:'HelveticaNeue-Light', 'HelveticaNeue', Helvetica, Arial, sans-serif;
	font-size:12px;
	height:100%;
	margin:0px;
	padding:0px;
	width:100%;
	overflow: hidden;
	background-color: black;
}

canvas {
	height: 79vh;
	width: auto;
}

#background {
	position: absolute;
	top: 0;
	z-index: -2;
}

#playfield {
	z-index: -1;
}

.hidden {
	display: none;
}

.buttons {
	position: absolute;
	top: 0;
}

.UI {
	font-weight: bold;
	color: white;
}

button {
	margin: 0 0.4cm;
	border-width: 2px;
	border-radius: 10px;
	height: 6vh;
	width: 9vh;
	background-color: black;
	font-weight: inherit;
	color: inherit;
}

p {
	font-weight: inherit;
	color: inherit;
}

#start_btn {
	position: absolute;
	top: 40vh;
	left: center;
}