/*
@media only screen and  (max-width: 575px) {
body {
  display: block;
}

body::after {
  content: "";
	background: url(../images/hintergrund/extra/20170825_114645.jpg) no-repeat fixed;  	    
  opacity: 0.5;
  top: 0;
  left: 0;
  bottom: 0;
  right: 0;
  position: absolute;
  z-index: -1;   
}
*/
}
@media only screen and (min-width: 576px) and (max-width: 767px) {
	
}
@media only screen and (min-width: 768px) and (max-width: 991px) {
	body  {
	background: url(../images/hintergrund/extra/20170825_114645.jpg) no-repeat fixed;  	    
}
	.content_main {
	margin-top: 110px;
	background-color: rgba(200,200,200,.57);
	position: static;
}
#menu-open:target .content_main, #menu-close:target .content_main {
	margin-top: 110px;
}
}

@media only screen and (min-width: 812px) and (max-width: 812px) {
	body  {
	background: url(../images/hintergrund/extra/20170825_114645.jpg) no-repeat fixed;  	    
}
	header {
	height: 163px;
	top: unset;
	position: unset;
	}
	.content_main  {
	margin-top: -80px;
	padding: 10px 10px 0 10px;
	height: 423px;
	}
	#menu-open:target .content_main, #menu-close:target .content_main {
	margin-top: -80px;
}
#navi  {
margin: -20px 0 0 0;
}
}
@media only screen and (min-width: 992px) and (max-width: 1199px) {
	body  {
	background: url(../images/hintergrund/extra/20170825_114645.jpg) no-repeat fixed;  	    
}
		.content_main {	
		background-color: rgba(200,200,200,.57);
		height: 517px;
	}

}

@media screen and (min-width: 1200px) { 
	body  {
	background: url(../images/hintergrund/extra/20170825_114645.jpg) no-repeat fixed;  	    
}
.content_main {
background-color: rgba(200,205,200,.69);
	position: absolute;
}
}

 {