body {
    font-family: sans-serif;
    padding: 20px;
    text-align: center;
    background: #f9f9f9;
}

.container {
    max-width: 600px;
    margin: auto;
    background: #fff;
    padding: 15px;
    border: 1px solid #ccc;
}

form {
    margin-bottom: 20px;
}

input, select {
    margin: 5px;
    padding: 6px;
    width: 80%;
}

input[type="submit"] {
    width: auto;
    background: #333;
    color: #fff;
    border: none;
    cursor: pointer;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 20px;
}

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

th {
    background: #eee;
}