black-screen.org/index.html at main · GameScripting/black-screen.org · GitHub

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<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Just pure black screen</title>
    <style>
        * {
            margin: 0;
            padding: 0;
        }

        #time {
            top: 50%;
            width: 100%;
            text-align: center;
            color: #0c0c0c;
            position: absolute;
            font-size: 150pt;
            transform: translateY(-50%);
            font-family: Roboto, Arial, sans-serif;
        }
    </style>
</head>
<body style="height: 100vh; width: 100%; background: #000">
    <h1>Just pure black screen</h1>
    <p>This is just a pure black screen. Click or press F11 on your keyboard to switch to fullscreen.</p>

    <p id="time"></p>

    <script>
        function updateTime() {
            const timeElm = document.getElementById("time")
            if (timeElm) {
                const now = new Date();
                const h = now.getHours().toString().padStart(2, "0");
                const m = now.getMinutes().toString().padStart(2, "0");
                timeElm.innerText = `${h}:${m}`
            }
        }

        updateTime();
        setInterval(updateTime, 1000);

        function toggleFullscreen() {
            const elem = document.body;

            if (!document.fullscreenElement && !document.mozFullScreenElement &&
                !document.webkitFullscreenElement && !document.msFullscreenElement) {
                if (elem.requestFullscreen) {
                    elem.requestFullscreen();
                } else if (elem.msRequestFullscreen) {
                    elem.msRequestFullscreen();
                } else if (elem.mozRequestFullScreen) {
                    elem.mozRequestFullScreen();
                } else if (elem.webkitRequestFullscreen) {
                    elem.webkitRequestFullscreen(Element.ALLOW_KEYBOARD_INPUT);
                }
            } else {
                if (document.exitFullscreen) {
                    document.exitFullscreen();
                } else if (document.msExitFullscreen) {
                    document.msExitFullscreen();
                } else if (document.mozCancelFullScreen) {
                    document.mozCancelFullScreen();
                } else if (document.webkitExitFullscreen) {
                    document.webkitExitFullscreen();
                }
            }
        }

        document.body.onclick = toggleFullscreen
    </script>
</body>
</html>