body {
    font-family: Arial, sans-serif;
    margin: 20px;
}

header, footer {
    margin-bottom: 20px;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 15px;
}

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

button {
    padding: 8px 12px;
    cursor: pointer;
}