ol.harvard {
  list-style-type: upper-roman;
}

ol.harvard ol {
  list-style-type: upper-alpha;
}

ol.harvard ol ol {
  list-style-type: decimal;
}

ol.harvard ol ol ol {
  list-style-type: none;
  counter-reset: level-4;

  li::before {
    content: counter(level-4, lower-alpha) ') ';
    counter-increment: level-4;
  }
}

ol.harvard ol ol ol ol {
  list-style-type: none;
  counter-reset: level-5;

  li::before {
    content: '(' counter(level-5, decimal) ') ';
    counter-increment: level-5;
  }
}

ol.harvard ol ol ol ol ol {
  list-style-type: none;
  counter-reset: level-6;

  li::before {
    content: '(' counter(level-6, lower-alpha) ') ';
    counter-increment: level-6;
  }
}

ol.harvard ol ol ol ol ol ol {
  list-style-type: none;
  counter-reset: level-7;

  li::before {
    content: counter(level-7, lower-roman) ') ';
    counter-increment: level-7;
  }
}

ol.harvard ol ol ol ol ol ol ol {
  list-style-type: none;
  counter-reset: level-8;

  li::before {
    content: '(' counter(level-8, decimal) ') ';
    counter-increment: level-8;
  }
}

ol.harvard ol ol ol ol ol ol ol ol {
  list-style-type: none;
  counter-reset: level-9;

  li::before {
    content: '(' counter(level-9, lower-alpha) ') ';
    counter-increment: level-9;
  }
}