body {            font-family: Arial, sans-serif;            text-align: center;            background-color: #f4f4f9;            color: #333;            margin: 0;            padding: 0;            display: flex;            flex-direction: column;            justify-content: center;            align-items: center;            height: 100vh;        }        h1 {            font-size: 3rem;            margin-bottom: 1rem;        }        p {            font-size: 1.5rem;            margin-bottom: 2rem;        }        .icon {            font-size: 5rem;            margin-bottom: 1rem;            color: #ff9800;        }