* {margin: 0; padding: 0; list-style: none;}
.tree li {
  margin-left: 15px;
  position: relative;
  padding-left: 5px;
}
.tree li::before {
  content: " ";
  position: absolute;
  width: 1px;
  background-color: #000;
  top: 5px;
  bottom: -12px;
  left: -10px;
}
body > .tree  > li:first-child::before {top: 12px;}
.tree li:not(:first-child):last-child::before {display: none;}
.tree li:only-child::before {
  display: list-item;
  content: " ";
  position: absolute;
  width: 1px;
  background-color: #000;
  top: 5px;
  bottom: 7px;
  height: 7px;
  left: -10px;
}
.tree  li::after {
  content: " ";
  position: absolute;
  left: -10px;
  width: 10px;
  height: 1px;
  background-color: #000;
  top: 12px;
}



table {
  border-collapse: collapse;
    font-family: Tahoma, Geneva, sans-serif;
}
table td {
  padding: 15px;
}
table thead td {
  background-color: #54585d;
  color: #ffffff;
  font-weight: bold;
  font-size: 13px;
  border: 1px solid #54585d;
}
table tbody td {
  color: #636363;
  border: 1px solid #dddfe1;
}
table tbody tr {
  background-color: #f9fafb;
}
table tbody tr:nth-child(odd) {
  background-color: #ffffff;
}