<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        html {
            height: 100%;
        }
        body {
            background: #000;
            height: 100%;
            margin: 0;
        }
        .accden {
            display: flex;
            place-items: center;
            place-content: center;
            animation: loadad 2s;
            height: 100%;
        }
        @keyframes loadad {
            0%{opacity: 0;}
            100%{opacity: 1;}
        }
    </style>
</head>
<body>
    <div class="accden">
        <img src="/ac.jpg" alt="">
    </div>
</body>
</html>