HTML实现除夕最美烟花，2023春节倒计时，新年不可没有烟花，最炫烟花代码分享
以下是一个简单的HTML页面示例，用于展示除夕夜最美的烟花。
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>除夕夜最美烟花</title>
<style>
body, html {
margin: 0;
padding: 0;
height: 100%;
}
.background-video {
position: fixed;
right: 0;
bottom: 0;
min-width: 100%;
min-height: 100%;
width: auto;
height: auto;
z-index: -1;
}
.fireworks {
position: absolute;
left: 50%;
top: 50%;
transform: translate(-50%, -50%);
pointer-events: none;
z-index: 1000;
}
</style>
</head>
<body>
<video autoplay loop muted playsinline class="background-video">
<source src="background-video.mp4" type="video/mp4">
</video>
<canvas class="fireworks"></canvas>
<script>
// 烟花绘制逻辑
const canvas = document.querySelector('.fireworks');
const ctx = canvas.getContext('2d');
const mousedown = false;
let particles = [];
function Firework() {
this.x = canvas.width / 2;
this.y = canvas.height;
this.vx = Math.random() * 5 - 2.5;
this.vy = -15;
this.radius = Math.random() * 2 + 1;
this.color = 'hsl(' + 360 * Math.random() + ', 100%, 50%)';
this.endY = Math.random() * canvas.height * 0.3 + canvas.height * 0.4;
this.exploded = false;
}
Firework.prototype.update = function() {
if (!this.exploded) {
this.x += this.vx;
this.y += this.vy;
this.vy += 0.3;
if (this.y >= this.endY) {
this.exploded = true;
this.explode();
}
}
};
Firework.prototype.draw = function() {
ctx.beginPath();
ctx.arc(this.x, this.y, this.radius, 0, 2 * Math.PI);
ctx.fillStyle = this.color;
ctx.fill();
};
Firework.prototype.explode = function() {
for (let i = 0; i < 20; i++) {
particles.push(new Particle(this.x, this.y, this.
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