body {
    font-family: Arial, sans-serif;
    margin: 20px;
}
header {
    margin-bottom: 20px;
}
table {
    width: 100%;
    border-collapse: collapse;
}
th, td {
    border: 1px solid #ccc;
    padding: 5px 10px;
}
th {
    background-color: #f0f0f0;
}