body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #f9f9f9;
    margin: 0;
    padding: 0;
    line-height: 1.6;
    display: flex;
    flex-direction: column;
    min-height: 100vh; /* Set the minimum height of the viewport to 100% of the viewport height */
}

.container {
    max-width: 900px;
    margin: 0 auto;
    padding: 20px;
    flex: 1; /* Fill remaining vertical space */
}

.container h2 {
    font-size: 2rem;
    margin-top: 0;
    margin-bottom: 0;
    text-align: center;
}