* {
	margin: 0;
}

body {
	width: 100%;
}

header {
	background-color: lightgreen;
}

nav {
	background-color: lightblue;
	height: 3em;
}

aside {
	background-color: yellow;
	float: left;
	width: 15%;
}

main {
	background-color: lightred;
	float: left;
}

.error {
	background-color: red;
}

.debug {
	background-color: cyan;
}

# Vorläufig C&P
nav {
	width: 100%;
	border: none;
}

nav:after {
	content:'';
	clear: left;
}

nav ul {
	margin: 0;
	padding: 0;
	text-align: center;
	background-color: white;
}

nav li {
	list-style: none;
	float: left;                
	position: relative;
	margin: 0.1em; 
	padding: 0;
}

nav a, 
nav span {
	display: block;
	margin: 0;
	padding: 0.1em 0.3em;
	background-color: #a2ccee;
	-webkit-transition: all 0.1s;
	transition: all 0.1s;
	width: 6em;
	overflow: hidden;
}

nav a:focus,
nav a:hover, 
nav span {                       /* aktuelle Unterseite kennzeichnen */
	background-color: #900a1c;
	color: white;
}

nav li li {
	margin: 0.1em 0;
}

nav ul ul {
	font-size: 0.9em;
	margin: 0em; 
	padding: 0;
	position: absolute;
	top: 1.3em; 
	font: 0/0 serif;            /* Unternavigation ausblenden */
	z-index: -1;
	-webkit-transition: all 0.1s;
	transition: all 0.3s;
}

nav ul li:hover ul {
	font: inherit;
	z-index: auto;               /*  Unternavigation einblenden */
}

nav ul ul li {
	float: none;
}

main {
	background-color: #82C2C3
}

main section {
	width: auto;
	background-color: #fff;
	padding: 0.8em;
	margin: 0.5em;
	border: 1px solid black;
	box-shadow: 5px 5px 5px gray;
}

table, th, td {
	padding: 0 0.5em;
	border-collapse: collapse;
	border: 1px solid black
}