Sample code for simple absolute positioning of JS pop-up layer

Author：Eve Cole Update Time：2025-03-12 10:16:01

复制代码代码如下:

function doThis()

{

var a = document.getElementById("addYear");

a.style.left=(document.body.clientWidth/2-a.clientWidth/2)+"px";

a.style.top=(document.body.scrollTop+document.body.clientHeight/2-a.clientHeight/2)+"px";

}