Glowing Cursor Effect

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Glowing Cursor Effect</title>
    <style>
        body {
            margin: 0;
            padding: 0;
            overflow: hidden;
            font-family: 'Arial', sans-serif;
            background-color: #222;
            color: #ffffff;
        }
        .cursor {
            position: absolute;
            top: 0;
            left: 0;
            width: 20px;
            height: 20px;
            background-color: #39ff14;
            border-radius: 50%;
            pointer-events: none;
            box-shadow: 0 0 10px #39ff14, 0 0 20px #39ff14, 0 0 30px #39ff14, 0 0 40px #39ff14;
            animation: glow 1s infinite alternate;
            will-change: transform;
        }
        @keyframes glow {
            0% {
                box-shadow: 0 0 10px #39ff14, 0 0 20px #39ff14, 0 0 30px #39ff14, 0 0 40px #39ff14;
            }
            100% {
                box-shadow: 0 0 20px #39ff14, 0 0 40px #39ff14, 0 0 60px #39ff14, 0 0 80px #39ff14;
            }
        }
    </style>
</head>
<body>
    <div class="cursor" id="cursor"></div>
    <script>
        const cursor = document.getElementById('cursor');
        let mouseX = 0;
        let mouseY = 0;
        document.addEventListener('mousemove', e => {
            mouseX = e.clientX;
            mouseY = e.clientY;
            cursor.style.transform = `translate(${mouseX - cursor.offsetWidth / 2}px, ${mouseY - cursor.offsetHeight / 2}px)`;
        });
    </script>
</body>
</html>

Glowing Cursor Effect - VexaX