ul.tree {
    min-height: 20px;
    padding-left: 10px;
    /*margin-bottom:20px;*/
    background-color: #fbfbfb;
}

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

ul.tree li::before, ul.tree li::after {
    content: '';
    left: -20px;
    position: absolute;
    right: auto
}

ul.tree li::before {
    border-left: 1px solid #999;
    bottom: 50px;
    height: 100%;
    top: 0;
    width: 1px
}

ul.tree li::after {
    border-top: 1px solid #999;
    height: 15px;
    top: 25px;
    width: 25px
}

ul.tree li span {
    display: inline-block;
    padding: 3px 8px;
    text-decoration: none
}

ul.tree li span {
    display: inline-block;
    padding: 3px 8px;
    text-decoration: none
}

ul.tree.clickable li span {
    cursor: pointer;
}

label.tree-toggler {
    cursor: pointer;
}
.tree-toggler {
    /*text-decoration: underline;*/
    border: 2px outset;
    border-radius: 5px;
     padding: 3px 8px;
}
.tree-item {
     padding: 3px 8px;
    border: 2px outset;
    border-radius: 5px;
}

ul.tree li:last-child::before {
    height: 30px;
}

ul.tree li.parent_li > span:hover, ul.tree li.parent_li > span:hover + ul li span {
    background: #eee;
    border: 1px solid #94a0b4;
    color: #000
}