#corner-1 {
  margin-top: 0; margin-left: 0;
}

#corner-2 {
  margin-top: 0; margin-right: 0;
}

#corner-3 {
  margin-bottom: 0; margin-left: 0;
}

#corner-4 {
  margin-bottom: 0; margin-right: 0;
}

#bg1 {
  background-image: url(../img/blank.png);
  background-position: center;
}

#bg2 {
  background-image: url(../img/blank.png);
  background-position: center;
}

#bg3 {
  background-image: url(../img/blank.png);
  background-position: center;
}

#bg4 {
  background-image: url(../img/blank.png);
  background-position: center;
}

#bg5 {
  background-image: url(../img/blank.png);
  background-position: center;
}