body {
    font-family: Arial, sans-serif;
    margin: 40px;
    background-color: #f4f4f9;
    color: #333;
}

h1 {
    color: #5a5a5a;
}

input[type="text"] {
    padding: 10px;
    margin: 10px 0;
    width: 300px;
    border: 2px solid #ddd;
    border-radius: 4px;
}

button {
    padding: 10px 20px;
    background-color: #007BFF;
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    transition: background-color 0.3s;
}

button:hover {
    background-color: #0056b3;
}

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

li {
    background-color: #ffffff;
    padding: 10px;
    margin-top: 5px;
    border-radius: 4px;
    border: 1px solid #ddd;
}