.tree li {
  margin: 0px 0;

  list-style-type: none;
  position: relative;
  padding: 20px 5px 0px 5px;
}

.tree li::before {
  content: "";
  position: absolute;
  top: 0;
  width: 1px;
  height: 100%;
  right: auto;
  left: -20px;
  border-left: 1px solid #ccc;
  bottom: 50px;
}
.tree li::after {
  content: "";
  position: absolute;
  top: 30px;
  width: 25px;
  height: 20px;
  right: auto;
  left: -20px;
  border-top: 1px solid #ccc;
}
.tree li a {
  display: inline-block;
  border: 1px solid #ccc;
  padding: 5px 10px;
  text-decoration: none;
  color: #666;
  font-family: arial, verdana, tahoma;
  font-size: 11px;
  border-radius: 5px;
  -webkit-border-radius: 5px;
  -moz-border-radius: 5px;
}

/*Remove connectors before root*/
.tree > ul > li::before,
.tree > ul > li::after {
  border: 0;
}
/*Remove connectors after last child*/
.tree li:last-child::before {
  height: 30px;
}

/*Time for some hover effects*/
/*We will apply the hover effect the the lineage of the element also*/
.tree li a:hover,
.tree li a:hover + ul li a {
  background: #c8e4f8;
  color: #000;
  border: 1px solid #94a0b4;
}
/*Connector styles on hover*/
.tree li a:hover + ul li::after,
.tree li a:hover + ul li::before,
.tree li a:hover + ul::before,
.tree li a:hover + ul ul::before {
  border-color: #94a0b4;
}