.tree ul {
    padding-left: 30px
}

.tree>ul {
    padding-left: 0
}

.tree li.tree-close>ul>li {
    display: none
}

.tree li {
    list-style-type: none;
    margin: 0;
    padding: 10px 5px 0 5px;
    position: relative
}

.tree li::before,
.tree li::after {
    content: "";
    left: -15px;
    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: 20px;
    width: 20px
}

.tree li span {
    -moz-border-radius: 5px;
    -webkit-border-radius: 5px;
    border: 1px solid #999;
    border-radius: 5px;
    display: inline-block;
    padding: 3px 8px;
    text-decoration: none;
    transition: color .2s ease .1s, background-color .2s ease .1s, border-color .3s ease .2s
}

.tree li.parent_li>span {
    cursor: pointer
}

.tree>ul>li::before,
.tree>ul>li::after {
    border: 0
}

.tree li:last-child::before {
    height: 20px
}

.tree li.parent_li>span:hover,
.tree li.parent_li>span:hover+ul li span,
.tree li.parent_li_hover>span {
    background: #db7a0c;
    border: 1px solid #94a0b4;
    color: #FFF
}