原理:
雪花背景平铺,背景图片位置向右下移动的动画
缺点:不会永远都向下移动,动画时间结束会闪回去首帧
实现:
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>简单下雪</title>
<style>
* {
margin: 0;
padding: 0;
}
body {
background: rgb(41, 43, 41);
}
.snow {
width: 100vw;
height: 100vh;
background-image: url("imgs/2.png");
margin: 0 auto;
animation: snow 100s linear;
}
@keyframes snow {
0% {
background-position: 0 0;
}
100% {
background-position: 5000px 5000px;
}
}
</style>
</head>
<body>
<div class="snow"></div>
</body>
</html>
雪花图片: