[AlanHK]

Found another file:

 <div class="chapter">
    <p class="flush">Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua


.flush {
  text-indent: 0;
  margin-top: 0;
  margin-bottom: 1pt;
}

.chapter > p:first-of-type {
  text-indent: 0;
}

.chapter > p:first-of-type::first-line {
  font-weight: normal;
  -webkit-text-stroke: 1px black;
}

.chapter > p:first-of-type::first-letter {
  font-family: Goudy, serif;
  font-size: 6em;
  float: left;
  line-height: 0.65em;
}

After running "Delete unused", only the first of the above styles survived, and the first para of each chapter lost all its embellishments.