.Menue {
	grid-area: navi;
	padding-left: 0.0em;
	padding-top: 1em;
	background-size: 100% 50%;
		background-image: url("../seite/ErbeldingAnsicht.jpg");
	<!-- background-image: url("../seite/MenuHinter.png"); -->       
}
<!-- menüknopf auschalten bei Bildschirm -->
.menuknopf {display: none;}

@media screen and (max-width: 900px) {
	.Menue {   
		     
		grid-area: navi;
		}   
}

nav {					
	text-align: left;
	position: fixed;
	}
nav ul {
	list-style-type: none;
	margin: 0;
	padding-left: 10px;
	padding-top: 10px;
	}
nav li {
	display: table;
	width: 9.5em;
	margin-bottom: 5px;
	background-color: #ffff99;
	padding-top: 4px;
	padding-bottom: 4px;
	padding-left: 8px;
	padding-right: 1px;
	border: #556677 1px outset;
	border-radius: 5px;
	font-weight: bold;
	cursor: default;
	box-shadow: 4px 0 4px olive;
	}
nav a {
	text-decoration: none;
	color: #cc3333;
	text-shadow: lightgrey 0px 0px 4px ;
	font-family: sans-serif;
	font-size: 80%;
		}
nav img {
	margin-left: 40px;
	margin-bottom: 5px;
	box-shadow:  4px 0 4px olive;
	}
nav li:hover {
	transition: all 250ms;
	border: #556677 1px inset;
	background-color: hsl(51,100%,50%);
	border-bottom-right-radius: 5px;
	border-top-right-radius: 5px;
	width: 9em;
}
nav a:hover {
	transition: all 500ms;
	text-shadow: none;
	text-align: right;
}