效果
源码
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Cloud & Rain Animation</title>
<link rel="stylesheet" href="style.css">
</head>
<body>
<div class="container">
<div class="cloud"></div>
<div class="rain">
<span style="--i:11"></span>
<span style="--i:12"></span>
<span style="--i:10"></span>
<span style="--i:14"></span>
<span style="--i:18"></span>
<span style="--i:16"></span>
<span style="--i:19"></span>
<span style="
