.auto-toc {
    border: 1px solid #ddd;
    padding: 10px;
    margin: 20px 0;
    background-color: #f9f9f9;
}
.auto-toc h2 {
    font-size: 18px;
    margin-bottom: 10px;
}
.auto-toc .content ul {
    list-style-type: none;
    padding-left: 0;
    max-width: 400px; /* Limit the width of the ul to 400px */
}
.auto-toc .content li {
    margin: 5px 0;
    text-align: left; /* Left align the list items */
}
.toc-2 {
    font-weight: bold;
    margin-left: 0; /* No indentation for h2 */
}
.toc-3 {
    margin-left: 20px; /* Indentation for h3 */
}
.toc-4 {
    margin-left: 40px; /* Indentation for h4 */
}
.auto-toc .content h4 {
    font-size: 20px; /* Set h4 font size to 20px */
    color: #000; /* Ensure h4 color is #000 */
}