.sitemapzeile,
.zusatzmenue{
	display:none;
}

@media only screen and (max-width: 567px){
	.topmenue ul{
		overflow:auto;
	}
	.topmenue{
		display:block;
		position:relative;
		left:auto;
		bottom:auto;
	}
	.menuezeile .logo_ro{
		display:block;
	}
}