body {
    font-family: Arial, sans-serif;
    margin: 20px;
    padding: 0;
    background-color: #f9f9f9;
}

h1, h2, h3 {
    color: #333;
}

form {
    background: #fff;
    padding: 20px;
    margin-top: 20px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}

form input[type="text"],
form textarea {
    width: 100%;
    padding: 10px;
    margin: 10px 0 20px 0;
    border: 1px solid #ccc;
    border-radius: 5px;
}

form button {
    padding: 10px 15px;
    background-color: #28a745;
    border: none;
    border-radius: 5px;
    color: #fff;
    cursor: pointer;
    font-size: 16px;
}

form button:hover {
    background-color: #218838;
}

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

ul li {
    background: #fff;
    margin: 10px 0;
    padding: 15px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}

ul li a {
    text-decoration: none;
    color: #007bff;
}

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

.container {
    max-width: 800px;
    margin: 0 auto;
}