gistfile1.txt

.index a:link {
  text-decoration: none;
  color: #3f3e3d;
  position: relative;
  z-index: 1;
}

.index li:before {
  content: counter(li, decimal-leading-zero) '. ';
  counter-increment: li;
  z-index: 2;
  position: relative;
}

.index li:hover, .index li:hover a {
  color: #fff;
  background: #eb6c46;
}

#title .index {
  width: 80px;
}