body {
            font-family: Arial, sans-serif;
            text-align: center;
            margin: 0;
            padding: 0;
            display: flex;
            justify-content: center;
            align-items: center;
            height: 100vh;
            opacity: 0;
            animation: fadeIn 2s forwards;
            background-color: #f4f4f4;
        }

        h1 {
            margin: 0;
            padding: 20px;
            font-weight: normal;
        }

        @media screen and (min-width: 768px) {
            h1 {
                font-size: 2em;
            }
        }

        @media screen and (max-width: 767px) {
            h1 {
                font-size: 1.5em;
                padding: 15px;
            }
        }
        @keyframes fadeIn {
            0% {
                opacity: 0;
            }
            100% {
                opacity: 1;
            }
        }