ul, li {
  margin: 0;
  padding: 0;
}

.sitemap > li > ul {
  margin-top: 1.5rem;
}

ul {
  list-style: none;
}

ul li {
  line-height: 2.5rem;
  vertical-align: top;
  position: relative;
}

ul li a {
  display: inline-block;
}

ul ul {
  margin-left: 1.5rem;
  margin-bottom: 1.5rem;
}

ul ul li {
  position: relative;
}

ul ul li::before {
  content: "";
  display: inline-block;
  width: 3rem;
  height: 100%;
  border-left: 0.125rem #fff solid;
  position: absolute;
  top: -0.75rem;
}

ul ul li::before {
  content: "";
  display: inline-block;
  width: 3rem;
  height: 1.5rem;
  border-bottom: 0.125rem #fff solid;
  position: absolute;
  top: -0.75rem;
}

ul ul li a {
  margin-left: 3.75rem;
}