body { 	
	background-color: #DDF9CC; 
	font-family: Arial, Sans-Serif;
}

h1 {	
	text-align: center;
	margin-top: 10px;
	margin-bottom: 10px;
}

h2 {	
	text-align: center;
	font-style: italic;
	text-decoration: underline;
	margin-top: 20px;
	margin-bottom: 20px;
}

.zentriert {
	display: block;
	margin-left: auto;
	margin-right: auto;
}

#logo {
	width: 80px;			
}

nav {
	background-color: green; 
	display: inline-block;
}