div[data-angular-treeview] {
    /* prevent user selection */
    -moz-user-select: -moz-none;
    -khtml-user-select: none;
    -webkit-user-select: none;
    -ms-user-select: none;
    user-select: none;

    /* default */
    font-family: Tahoma;
    font-size:13px;
    color: #555;
    text-decoration: none;
}

div[data-tree-model] ul {
    margin: 0;
    padding: 0;
    list-style: none; 
    border: none;
    overflow: hidden;
}

div[data-tree-model] li {
    position: relative;
    padding: 0 0 0 20px;
    line-height: 20px;
}

div[data-tree-model] li .expanded {
    padding: 1px 10px;
    background-image: url("http://cfile23.uf.tistory.com/image/205B973A50C13F4B19D9BD");
    background-repeat: no-repeat;
}

div[data-tree-model] li .collapsed {
    padding: 1px 10px;
    background-image: url("http://cfile23.uf.tistory.com/image/1459193A50C13F4B1B05FB");
    background-repeat: no-repeat;
}

div[data-tree-model] li .normal {
    padding: 1px 10px;
    background-image: url("http://cfile23.uf.tistory.com/image/165B663A50C13F4B196CCA");
    background-repeat: no-repeat;
}

div[data-tree-model] li i, div[data-tree-model] li span {
    cursor: pointer;
}

div[data-tree-model] li .selected {
    background-color: #aaddff;
    font-weight: bold;
    padding: 1px 5px;
}