.fb-icon {
    width: 20px;
    height: 20px;
    vertical-align: middle;
    margin-right: 6px;
}
.fb-meta {
    color: #777;
    font-size: 0.85em;
    margin-left: 8px;
}
.fb-action {
    margin-left: 6px;
    cursor: pointer;
}
.fb-folder {
    list-style: none;
    margin: 0 0 0 1em;
    padding: 0;
}
.fb-dir > .fb-folder {
    display: none; /* collapsed by default */
}
.fb-dir.open > .fb-folder {
    display: block;
}
.fb-toggle {
    cursor: pointer;
}