* {
            margin: 0;
            padding: 0;
        }
        html, body {
            width: 100%;
            height: 100%;
            overflow: hidden;
            background: #000;
            color-scheme: dark;
        }
        iframe {
            width: 100%;
            height: 100%;
            border: none;
            display: block;
            background: #000;
        }