#thumbnail_01 {
  background: #f69e70 url(../pix/virtual_tour_rooms_galleria.jpg) no-repeat;
}

#thumbnail_03 {
  background: #f69e70 url(../pix/thumbnail_functions_03.jpg) no-repeat;
}

#thumbnail_04 {
  background: #f69e70 url(../pix/thumbnail_functions_04.jpg) no-repeat;
}

#thumbnail_05 {
  background: #f69e70 url(../pix/thumbnail_functions_05.jpg) no-repeat;
}

#thumbnail_06 {
  background: #f69e70 url(../pix/thumbnail_functions_06.jpg) no-repeat; 
}

#thumbnail_07 {
  background: #f69e70 url(../pix/thumbnail_functions_07.jpg) no-repeat;
}

#thumbnail_08 {
  background: #f69e70 url(../pix/thumbnail_functions_08.jpg) no-repeat;
}

#thumbnail_09 {
  background: #f69e70 url(../pix/thumbnail_functions_09.jpg) no-repeat;
}