.tree-list {
    position: relative;
    display: block;
    margin: 0;
    padding: 0;
    list-style: none;
    font-size: 13px;
    line-height: 25px;
 }

.tree-list li { list-style-type: none;
padding-left: 2.0em;
 position: relative; /* used for internal absolute position children */
}
.tree-list li div.item-box {
    height: 35px;
    display: block;
    margin: 5px 0;
    padding: 5px 10px 5px 40px;
    color: #333;
    text-decoration: none;
    font-weight: bold;
    border: 1px solid #ccc;
    background: #fafafa;
    background: -webkit-linear-gradient(top, #fafafa 0%, #eee 100%);
    background: -moz-linear-gradient(top, #fafafa 0%, #eee 100%);
    background: linear-gradient(top, #fafafa 0%, #eee 100%);
    -webkit-border-radius: 3px;
    border-radius: 3px;
    box-sizing: border-box;
    -moz-box-sizing: border-box;
}

.handle-box { position: absolute;
    margin: 0; left: 0; top: 0; cursor: pointer; width: 30px; text-indent: 100%;
    white-space: nowrap; overflow: hidden;
    border: 1px solid #aaa;
    background: #ddd;
    background: -webkit-linear-gradient(top, #ddd 0%, #bbb 100%);
    background:    -moz-linear-gradient(top, #ddd 0%, #bbb 100%);
    background:         linear-gradient(top, #ddd 0%, #bbb 100%);
    border-top-right-radius: 0;
    border-bottom-right-radius: 0;

    display: block;
    height: 35px;
    padding: 5px 10px;
    color: #333;
    text-decoration: none;
    font-weight: bold;
    border: 1px solid #ccc;
    -webkit-border-radius: 3px;
    border-radius: 3px;
    box-sizing: border-box;
    -moz-box-sizing: border-box;
}

.dd3-handle:before {
    content: '≡';
    display: block;
    position: absolute;
    left: 0;
    top: 3px;
    width: 100%;
    text-align: center;
    text-indent: 0;
    color: #fff;
    font-size: 20px;
    font-weight: normal;
}

