:root {
  /**
   *  Number of lines per page/Number of characters per line
   */
  --vs-theme--num-of-line: 15;
  --vs-theme--num-of-character: 39;
  /**
   *  Content to be displayed in the upper left/upper right corner of the page spread
   */
  --vs-theme--page-top-left-content: counter(page) '　' env(doc-title);
  --vs-theme--page-top-right-content: counter(page);
  /**
   *  Indent size of subsection
   */
  --vs-theme--subsection-text-indent: 3rem;
  /**
   *  Color of anchor texts on screen media
   */
  --vs-theme--anchor-color-body: darkblue;
}