body {
    font-family: Arial, sans-serif;
    text-align: center;
    background: #f4f4f4;
    padding: 20px;
}

.container {
    background: white;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    max-width: 400px;
    margin: auto;
}

input, button {
    padding: 10px;
    margin: 10px;
    width: 80%;
}

button {
    background: blue;
    color: white;
    border: none;
    cursor: pointer;
}