body {
    font-family: Arial, sans-serif;
    margin: 40px;
}
h1, h2, h3 {
    color: #333;
}
form {
    margin-bottom: 20px;
}
input, button {
    padding: 10px;
    margin: 5px;
}
table {
    margin-top: 20px;
    border-collapse: collapse;
}