snowfall.jquery.js achieves page floating effect

The rendering is as follows: There is a problem when recording gif, so don’t worry about the clarity. 

Introduce third-party js:

You can download it from the official website, or click here to pick it up: https://download.csdn.net/download/tt18473481961/87555035

<script type="text/javascript" src="js/snowfall.jquery.js"></script>

Initialization code:

$(document).snowfall({
		image: "./images/img1.png", // 图片
		flakeCount:5,
		minSize: 5, //最小体积
		minSpeed:1, // 最小速度
		// maxSpeed:6, //最大速度 
        maxSize: 12 // 最大体积
	});