body {
    font-family: Arial, sans-serif;
    margin: 20px;
    background-color: #f4f4f4;
}

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

table {
    width: 100%;
    border-collapse: collapse;
    background-color: #fff;
}

table th, table td {
    padding: 8px;
    border: 1px solid #ccc;
    text-align: left;
}

form input, form select, form button {
    padding: 8px;
    margin: 4px 0;
    width: 100%;
    box-sizing: border-box;
}