#csaladfa ul {
  padding: 10px;
  margin: 0;
  list-style-type: none;
  position: relative;
}

#csaladfa li {
  list-style-type: none;
  border-left: 2px solid #000;
  margin-left: 1em;
}

#csaladfa li div {
  padding-left: 1em;
  position: relative;
}

#csaladfa li div::before {
  content:'';
  position: absolute;
  top: 0;
  left: -2px;
  bottom: 50%;
  width: 0.75em;
  border: 2px solid #000;
  border-top: 0 none transparent;
  border-right: 0 none transparent;
}

#csaladfa ul > li:last-child {
  border-left: 2px solid transparent;
}