body {
    font-family: Arial, sans-serif;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
    background-color: #f0f0f0;
}

.input-container {
    margin-bottom: 20px;
}

label {
    margin-right: 10px;
}

input[type="number"] {
    width: 50px;
    padding: 5px;
    margin-right: 20px;
    text-align: center;
}

button {
    padding: 5px 10px;
}

.table-container {
    width: 80%;
    max-width: 800px;
    margin: 0 auto;
}

table {
    width: 100%;
    border-collapse: collapse;
}

td, th {
    border: 1px solid #ccc;
    padding: 10px;
    text-align: center;
}

th {
    background-color: #e0e0e0;
}