.toc {
    padding: 10px 15px;
    border: 1px solid #e5e5e5;
    margin-bottom: 20px;
    background-color: #f9f9f9;
    border-radius: 4px;
}

.toc ul {
    list-style-type: none;
    padding-left: 0;
}

.toc ul li {
    margin-bottom: 5px;
}

.toc ul li a {
    text-decoration: none;
    color: #333;
}

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