More-CSS/backdrop-fliter-blur.html

<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Backdrop-filter:blur</title>
    <style>
        * {
            padding: 0;
            margin: 0;
            box-sizing: border-box;
            font-family: 'Ribeye', cursive;
        }

        section {
            position: relative;
            display: flex;
            justify-content: center;
            align-items: center;
            min-height: 100vh;
            background: url(img/leaves-15757_1280.jpg) no-repeat fixed center;
            background-size: cover;
            overflow: hidden;
        }

        section h1 {
            font-size: 4rem;
            color: whitesmoke;
            pointer-events: none;
            text-shadow: 0 10px 20px rgba(0, 0, 0, 0.5);
        }

        section .glass {
            position: absolute;
            pointer-events: none;
            transform: translate(-50%, -50%);
            width: 300px;
            height: 200px;
            background: transparent;
            box-shadow: 0 25px 50px rgba(0, 0, 0, 0.5);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            -moz-backdrop-filter: blur(10px);
            transition: 0.2s;

        }

        p {
            text-align: center;
            font-weight: bold;
            font-size: 18px;
        }
    </style>
</head>

<body>
    <section>
        <h1>
            Backdrop-Filter:Blur;
        </h1>
        <div class="glass">

        </div>

    </section>
    <p>
        Note: Backdrop-filter has issue with firefox. <br>
        Works on Chrome and Edge.
    </p>
    <!-- JS Script -->
    <script>
        document.addEventListener("mousemove", function (e) {
            const glass = document.querySelector('.glass');
            glass.style.left = e.offsetX + 'px';
            glass.style.top = e.offsetY + 'px';

        })
    </script>
</body>

</html>