.error-container {
    text-align: center;
    margin-top: 100px;
    font-family: Arial, sans-serif;
}

    .error-container h1 {
        font-size: 80px;
        color: #ff4d4f;
    }

    .error-container h2 {
        color: #555;
    }

.btn {
    margin-top: 20px;
    padding: 10px 20px;
    font-size: 16px;
}