以下是一份基于HTML5 Canvas实现的跨年烟花源代码：
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <title>html5夜景放烟花绽放动画效果</title> <style type="text/css"> body { margin: 0px; padding: 0px; background-color: #000; } .shape { position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%); font-size: 48px; color: #FFF; font-family: Arial, sans-serif; display: none; } </style> </head> <body> <canvas id="canvas" width="800" height="600"></canvas> <div class="shape">财源广进</div> <script type="text/javascript"> var<
