[Jellby]

I don't know why the TOC comes out so big, must be some default style of Prince. You can add something like this to the stylesheet:

body.nomargin {
  page: cover;
}

@page cover {
  size: 565px 799px !important; /* hard-coded cover image size */
  margin: 0 -117px !important;  /* make virtual page width 800px */
}

nav * {
  font-size: 100%;
}
  
nav > ol {
  font-size: 75%;
}

nav ol {
  margin-left: 2em;
}

nav#landmarks {
  display: none;
}