js实现雷阵雨效果-html代码-BFW代码库

js实现雷阵雨效果

代码语言：html

所属分类：动画

代码描述：js实现雷阵雨效果

代码标签：效果

下面为部分代码预览，完整代码请点击下载或在bfwstudio webide中打开

<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">

<link rel='stylesheet' href='https://fonts.googleapis.com/css?family=Contrail+One'>
<style>
* {
  margin: 0; 
  padding: 0;
}
html,body {
  overflow: hidden;
}
canvas {
  background-color: #1f1f33;
  -webkit-animation: thunder-bg 8s infinite;
}

h1 {
  position: fixed;
  font-size: 3em;
  text-align: center;
  top: 50%;
  left: 50%;
  color: #565656;
  transform: translate(-50%, -50%);
  text-shadow: 5px 5px 0px rgba(0,0,0,0);
  font-family:'Contrail one', serif;
  -webkit-animation: thunder-h1 8s infinite;
}	

@-webkit-keyframes thunder-bg {
  0%    { background-color: #1f1f33; }
  9%    { background-color: #1f1f33; }
  10%   { background-color: #484877; }
  10.5%   { background-color: #1f1f33; }
  80%   { background-color: #1f1f33; }
  82%   { background-color: #484877; }
  83%   { background-color: #1f1f33; }
  83.5%   { background-color: #484877; }
  100%  { background-color: #1f1f33; }
}
@-webkit-keyframes thunder-h1 {
  0%    { color: #565656; text-shadow: 2px 2px 0px rgba(0,0,0,0.4); }
  9%    { color: #565656; text-shadow: 2px 2px 0px rgba(0,0,0,0.4); }
  10%   { color: #ffffff; text-shadow: 5px 5px 0px rgba(0,0,0,0.5); }
  10.5% { color: #565656; text-shadow: 2px 2px 0px rgba(0,0,0,0.4); }
  80%   { color: #565656; text-shadow: 2px 2px 0px rgba(0,0,0,0.4); }
  82%   { color: #ffffff; text-shadow: 5px 5px 0px rgba(0,0,0,0.5); }
  83%   { color: #565656; text-shadow: 2px 2px 0px rgba(0,0,0,0.4); }
  83.5% { color: #ffffff; text-shadow: 5px 5px 0px rgba(0,0,0,0.5); }
  100%  { color: #565656; text-shadow: 2px 2px 0px rgba(0,0,0,0.4); }
}
</style>

</head>
<body translate="no">
<canvas id="canvas"></canvas>
<h1>
<span id="thunder">Thunder</span>
and
<span id="rain">Rain</span>
</h1>

<script>
var canvas = document.getElementById('canvas');
var ctx = canvas.getContext('2d');

var cw = window.innerWidth;
var ch = window.innerHeight;

ctx.canvas.width = cw;
ctx.canvas.height = ch;

var rainSpeed = 25;
var rainWeight = 1; // 1 being heaviest
var raindrops =.........完整代码请登录后点击上方下载按钮下载查看