.custom-toc ul {
    margin: 10px 0 0;
    padding-left: 15px;
}

.custom-toc li {
    list-style: none;
    margin: 5px 0;
}

.custom-toc .toc-level-3 {
    margin-left: 15px;
}

.custom-toc .toc-level-4 {
    margin-left: 0;
    margin-bottom: 8px;
}

.custom-toc a {
    text-decoration: none;
    color: #0073aa;
}

.custom-toc a:hover {
    text-decoration: underline;
}