Shulou(Shulou.com)06/01 Report--

This article mainly introduces web development can achieve front-end animation methods, the article is very detailed, has a certain reference value, interested friends must read!

1, Javascript direct implementation

The main idea is to change the CSS style of an element continuously by calling the callback function of setInterval or setTimeout method to achieve the effect of element style change.

letelem=document.getElementById('rect');

letleft=0;

lettimer=setInterval(function(){

if(left

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