body {
	background-color: #000;
    color: #eee;
}
      

#myCanvasContainer {
	width: 960px; 
	margin-left: auto; 
	margin-right: auto;
}

h1 {

	font-family: verdana;
	text-align: center;
	font-size: 24pt;
}

div#buttons {
	width: 20px;
}

div#aufgaben {
	display: none;
}