body {
    font-family: Arial, sans-serif;
    background: #f4f4f4;
    padding: 20px;
}
.container {
    background: white;
    padding: 20px;
    border-radius: 10px;
    max-width: 800px;
    margin: auto;
    box-shadow: 0 0 10px rgba(0,0,0,0.1);
}
h2 {
    text-align: center;
}
table {
    width: 100%;
    border-collapse: collapse;
}
th, td {
    padding: 10px;
    text-align: left;
    border-bottom: 1px solid #ddd;
}
tr:hover {
    background-color: #f1f1f1;
}
button {
    margin-top: 10px;
    padding: 10px 20px;
}