.tree a {
    cursor: pointer;
}

.tree {
    padding: 15px;
}

.tree ul {
    list-style: none outside none;
}
.tree li a {
    line-height: 25px;
}
.tree > ul > li > a {
    color: #3B4C56;
    display: block;
    font-weight: normal;
    position: relative;
    text-decoration: none;
}
.tree li.parent > a {
    padding: 0 0 0 28px;
}
.tree li.parent > a:before {
    background-image: url("data:image/png;base64,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");
    background-position: 25px center;
     content: ""; 
    display: block;
    height: 21px;
    left: 0;
    position: absolute;
    top: 2px;
    vertical-align: middle;
    width: 23px;
}
.tree ul li.active > a:before {
    background-position: 0 center;
}
.tree ul li ul {
    border-left: 1px solid #D9DADB;
    display: none;
    margin: 0 0 0 12px;
    overflow: hidden;
    padding: 0 0 0 25px;
}
.tree ul li ul li {
    position: relative;
}
.tree ul li ul li:before {
    border-bottom: 1px dashed #E2E2E3;
    content: "";
    left: -20px;
    position: absolute;
    top: 12px;
    width: 15px;
}