/*für ältere Firefoxversionen*/
header, nav, section, footer{
	display: block
	}

body {		
	font: normal 100.01% Helvetica, Arial, sans-serif;
	color: black; background-color: white;
	min-width: 97em; /* Mindestbreite verhindert Anzeigefehler in modernen Browsern */
	max-width: 100em;
    }	
	
header{
	text-align: center-left;
	font-size:1.5em;
	background-color: #FFFFFF;
	font-size: 1.5em;
	margin: 1em 0;
	text-decoration: underline;
	}
	
nav{
    margin: 0;
    padding: 0.8em;
	text-align: center;
	border: 1px solid black;
	background-color: silver;
	}

nav a{
    padding: 0.2em 1em;
	text-decoration: none; 
	font-weight: bold;
	border: 1px solid black;
	border-left-color: white;
	border-top-color: white;
	color: #4169E1; background-color: #ccc;
    }
	
section {
    
	}
	
footer {
    background-color: #4169E1;
	}