Happy-diwali/index.html at main · JatinGa/Happy-diwali · GitHub

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<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Happy Diwali!</title>
    <style>
        body, html {
            height: 100%;
            margin: 0;
            overflow: hidden;
            font-family: Arial, sans-serif;
            background: #000;
            display: flex;
            justify-content: center;
            align-items: center;
        }
        .container {
            text-align: center;
            z-index: 1;
        }
        h1 {
            font-size: 4em;
            color: #FFD700;
            text-shadow: 0 0 10px #FF6347, 0 0 20px #FF6347, 0 0 30px #FF6347;
            animation: glow 2s ease-in-out infinite alternate;
        }
        @keyframes glow {
            from {
                text-shadow: 0 0 10px #FF6347, 0 0 20px #FF6347, 0 0 30px #FF6347;
            }
            to {
                text-shadow: 0 0 20px #FF6347, 0 0 30px #FF6347, 0 0 40px #FF6347;
            }
        }
        canvas {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            z-index: 0;
        }
    </style>
</head>
<body>
    <canvas id="fireworks"></canvas>
    <div class="container">
        <h1>Happy Diwali!</h1>
    </div>

    <script>
        const canvas = document.getElementById('fireworks');
        const ctx = canvas.getContext('2d');
        canvas.width = window.innerWidth;
        canvas.height = window.innerHeight;

        class Firework {
            constructor() {
                this.reset();
            }

            reset() {
                this.x = Math.random() * canvas.width;
                this.y = canvas.height;
                this.sx = Math.random() * 3 - 1.5;
                this.sy = -Math.random() * 4 - 4;
                this.size = Math.random() * 2 + 1;
                this.hue = Math.floor(Math.random() * 360);
                this.brightness = Math.floor(Math.random() * 50 + 50);
            }

            update() {
                this.x += this.sx;
                this.y += this.sy;
                this.sy += 0.05;
                this.size -= 0.02;
                if (this.size < 0) this.reset();
            }

            draw() {
                ctx.fillStyle = hsl(${this.hue}, 100%, ${this.brightness}%);
                ctx.beginPath();
                ctx.arc(this.x, this.y, this.size, 0, Math.PI * 2);
                ctx.fill();
            }
        }

        const fireworks = Array(50).fill().map(() => new Firework());

        function animate() {
            ctx.fillStyle = 'rgba(0, 0, 0, 0.1)';
            ctx.fillRect(0, 0, canvas.width, canvas.height);

            fireworks.forEach(fw => {
                fw.update();
                fw.draw();
            });

            requestAnimationFrame(animate);
        }

        animate();

        window.addEventListener('resize', () => {
            canvas.width = window.innerWidth;
            canvas.height = window.innerHeight;
        });
    </script>
</body>
</html>