body {
    font-family: Arial, sans-serif;
    text-align: center;
    padding: 20px;
    background-color: #f4f4f9;
}

h1, h2 {
    color: #333;
}

form {
    margin-bottom: 20px;
}

input[type="number"] {
    padding: 10px;
    font-size: 16px;
    width: 200px;
    margin-top: 10px;
}

button {
    padding: 10px 20px;
    font-size: 16px;
    margin-left: 10px;
    cursor: pointer;
}

table {
    width: 80%;
    margin: 20px auto;
    border-collapse: collapse;
}

thead th {
    background-color: #007bff;
    color: white;
    padding: 10px;
    text-align: left;
}

tbody td {
    background-color: #e9ecef;
    color: #333;
    padding: 10px;
    text-align: left;
    border-bottom: 1px solid #ddd;
}

tbody tr:hover td {
    background-color: #d6d8db;
}

table, th, td {
    border: 1px solid #ddd;
}

th, td {
    padding: 10px;
    text-align: center;
}

tr:last-child td {
    border-bottom: none;
}