body {
    font-family: Arial, sans-serif;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
    background-color: #f5f5f5;
}

.error-message {
    text-align: center;
    padding: 20px;
    border: 2px solid #e74c3c;
    border-radius: 5px;
    background-color: #fff;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}

.error-message h2 {
    margin-bottom: 10px;
    color: #e74c3c;
}