#excerpt-0 {
  background-image: url('/images/book1_large.jpg');
}

#excerpt-1 {
  background-image: url('/images/book2_large.jpg');
}

#excerpt-2 {
  background-image: url('/images/book3_large.jpg');
}

#excerpt-3 {
  background-image: url('/images/book4_large.jpg');
}

#excerpt-4 {
  background-image: url('/images/book5_large.jpg');
}

#excerpt-5 {
  background-image: url('/images/book6_large.jpg');
}

#excerpt-6 {
  background-image: url('/images/book6_large.jpg');
}

#excerpt-7 {
  background-image: url('/images/book6_large.jpg');
}

#excerpt-8 {
  background-image: url('/images/book6_large.jpg');
}