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

.qbtree ul {
    margin-left: 1em;
    position: relative;
}

.qbtree ul:before {
    content: "";
    display: block;
    width: 0;
    position: absolute;
    top: 0;
    bottom: 0;
    left: 0;
    border-left: 1px solid;
}

.qbtree ul li:last-child:before {
    background: #fff;
    height: auto;
    top: 1em;
    bottom: 0;
}

.qbtree li {
    margin: 0;
    padding: 0 1em;
    line-height: 2em;
    color: #369;
    position: relative;
}

.qbtree li label{
    font-weight: normal;
    margin-left: 10px;
}

.qbtree ul li:before {
    content: "";
    display: block;
    width: 10px;
    height: 0;
    border-top: 1px solid;
    margin-top: -1px;
    position: absolute;
    top: 1em;
    left: 0;
}