*[data-sktree-level="0"] {
    font-weight: bold;
}
span.skadmin-tree-padding {
    content: " ";
    width: 10px;
    min-width: 10px;
    max-width: 10px;
}
span.skadmin-tree-level {
    font-size: 0.7em;
    margin-right: 5px; 
}