style.css

p.caption {
  color: #777;
  margin-top: 10px;
}
p code {
  white-space: inherit;
}
pre {
  word-break: normal;
  word-wrap: normal;
}
pre code {
  white-space: inherit;
}



/* footnote counter to restart numbering for each chapter
  thanks @romles https://stackoverflow.com/questions/50616517/restart-endnote-numbering-after-each-gitbook-style-web-chapter-in-r-bookdown
  thanks @ilyankou for update from footnote-ref to footnoteRef for bookdown 0.9 */

  /* don't show the wrong footnote calls */
  .footnote-ref sup,
  .footnoteRef sup {
    display: none;
  }

  /* use a counter for footnote calls */
  .level1 {
    counter-reset: fn-call;
  }

  .footnote-ref,
  .footnoteRef {
    counter-increment: fn-call;
  }

  /* generate new footnote calls */
  .footnote-ref::after,
  .footnoteRef::after {
    content: counter(fn-call);
    position: relative;
    top: -.5em;
    font-size: 85%;
    line-height: 0;
    vertical-align: baseline;
  }

  /* use a counter for footnotes numbering */
  .footnotes ol {
    list-style: none;
    counter-reset: fn-number;
  }

  .footnotes li {
    counter-increment: fn-number;
  }

  .footnotes p::before {
    content: counter(fn-number) '. ';
  }