.grau {
	background-color: #273341;
}
img.bild { display: block; z-index:-20;
	   min-width: 600px;
	   width: 100%;
   	   position: fixed;
	   top: 0;
	   left: 0;
	}


.box {
	alignment-adjust: central;
	font-size: 24px;
	font-weight: bold;
	font-family: "Lucida Sans Unicode", "Lucida Grande", sans-serif;
	color: #fff;
	text-decoration: none;
	padding-top: 20%;
 }