.tree {
min-height:20px;
padding:19px;
margin-bottom:20px;
background-color:#fbfbfb;
border:1px solid #999;
-webkit-border-radius:4px;
-moz-border-radius:4px;
border-radius:4px;
-webkit-box-shadow:inset 0 1px 1px rgba(0, 0, 0, 0.05);
-moz-box-shadow:inset 0 1px 1px rgba(0, 0, 0, 0.05);
box-shadow:inset 0 1px 1px rgba(0, 0, 0, 0.05)
}
.tree li {
list-style-type:none;
margin:0;
padding:10px 5px 0 5px;
position:relative
}
.tree li::before, .tree li::after {
content:'';
left:-20px;
position:absolute;
right:auto
}
.tree li::before {
border-left:1px solid #999;
bottom:50px;
height:100%;
top:0;
width:1px
}
.tree li::after {
border-top:1px solid #999;
height:20px;
top:25px;
width:25px