body {
    background-color: #f4f4f4;
    font-family: Arial, sans-serif;
    color: #333;
    margin: 0;
    padding: 0;
}

.container {
    max-width: 600px;
    margin: 100px auto;
    padding: 20px;
    background: white;
    border-radius: 10px;
    box-shadow: 0 0 10px rgba(0,0,0,0.1);
    text-align: center;
}

h1 {
    color: #007ACC;
}