pre code {
  background-color: #eee;
  border: 1px solid #999;
  display: block;
  padding: 20px;
}

ul , li {
  list-style: none;
  margin: 0;
  padding:0;
}

ul.treeRoot > li ul,
ul.treeRoot > li ul {
  padding-left:20px;
}

ul.treeRoot li{
  border-left: 1px solid #000;
}

ul.treeRoot ul li,
ul.treeRoot li{
  border-left:1px solid #000;
  padding-left: 20px;
  position: relative;
  font-size: 16px;
  line-height: 24px; 
}

ul.treeRoot ul li:last-child:after,
ul.treeRoot li:last-child:after{
  position:absolute;
  content: "";
  display:inline-block;
 top: 12px;
  width:1px;
  left: -1px;
  bottom: 0;
  background: #fff
}

ul.treeRoot ul li:before,
ul.treeRoot li:before{
  height: 1px;
  background: #000;
  width: 15px; 
  left:0;
  top: 11px;
  display: inline-block;
  content: "";
  position: absolute;
}

.treeRoot li ul {
  display: none;
}

.treeRoot li ul.activeSubMenu{
  display: block;
}

pre[class*="language-" ],
code[class*="language-"] {
	word-break: break-all !important;
	word-wrap: break-word !important;
	white-space: pre-wrap !important;
}

.code {
	background-color: #eee;
	border: solid, 1px, #e4e4e4;
	border-radius: 3px;
	padding: 2px;
	font-size: 1em;
	white-space: pre-wrap;
	font-weight: bold;
}

p {
	color: black;
	font-size: 1.25em;
}