BODY {
  font-family: Verdana, Arial, Helvetica, sans-serif;color: #000000;
  
}

a:link {color: white;}
a:visited {color: white;}
a:hover {color: green;}

.titel {
    color: yellow;
    font-size: 3rem;
    font-weight: bold;
    /*text-align: center;*/
}

.rechtsaussen {
    margin-left: 80%;
    margin-top: -65px;
}

div.haupt {
    display: block;
    position: absolute;
    z-index: 1;
    border: 5px solid gold;
    box-shadow: 0 5px 10px firebrick inset;
    border-radius: 2em 2em 0em 2em;
    background-color: rgba(255, 255, 0, .4);
    overflow: auto;
}

div.links {
    display: block;
    color: black;
    position: absolute;
    z-index: 1;
    border: 3px solid yellow;
    border-radius: 2em 2em 0em 2em;
    background-color: none;
    overflow: auto;
}

nav > ul {
	list-style: none;
	margin: 0;
	padding: 0;
	display: flex;
	flex-direction: column;
}

nav li {
	margin: 0.5em;
	padding: 0;
	font-size: 1.5rem;
	flex: 1 1 0%;
}

@media (min-width: 45em) {
	nav > ul {
		flex-direction: row;
		height: 3em;
	}
	nav li {
		flex: 1;
		font-size: 1em;
	}
}

nav a {
	display: block;
	padding: 0.4em;
	text-decoration: none;
	font-weight: bold;
	text-align: left;
	border: 1px solid green;
	border-radius: 10px 10px 0px 10px;
	box-shadow: 0 5px 10px white inset;
	color: gold;
	background-color: black;
	transition: all .25s ease-in;
}

nav li[aria-current] a {
	background-color: firebrick;
	color: gold;
}

nav a:focus,
nav a:hover,
nav li[aria-current] a:focus,
nav li[aria-current] a:hover {
	color: black;
	background-color: gold;
}
/*     submenu navigation links      */

nav .submenu {
	visibility: hidden;
	height: 0;
	z-index: 1000;
}

nav .submenu li {
	display: block;
	/* width: 15em; */
}
/**     Show the submenu on hover, focus     **/

nav li:hover .submenu,
nav li:active .submenu,
nav li:focus .submenu {
	visibility: visible;
	height: auto;
}

nav li:focus-within .submenu {
	visibility: visible;
	height: auto;
}