#stage {
  background-image: url("/fileadmin/005_spiele/kehrwoche/img/einstieg.png");
	background-repeat: no-repeat;
	background-size: contain;
	left: 0; top: 0; right: 0; bottom: 0;
}

#startbtn  {position: absolute; width: 20.67%; height: 18.51%; left: 18.0%; top: 40%; background-image: url("/fileadmin/005_spiele/kehrwoche/img/start-btn.png"); background-repeat: no-repeat; background-size: contain;}