.treeview a {
    border: 1px rgba(0, 0, 0, 0.2) solid;
    border-radius: 6px !important;
    box-shadow: 0 1px 2px 0 rgba(0, 0, 0, .07) !important;
    padding-top: 5px !important;
    padding-bottom: 5px !important;
}

.treeview ul ul {
    border-left: 4px solid rgba(0, 0, 0, .2);
}