#jsn-master {
   background: rgba(0, 0, 0, 0) url("../images/backgrounds/HG-Musik-und-Theater.jpg") repeat fixed 0 0 / 100% 100%;
}


@media only screen and (max-width: 960px), (max-device-width: 960px) {
	
#jsn-master {
   background: rgba(0, 0, 0, 0) url("../images/backgrounds/HG-Musik-und-Theater.jpg");
}
}