JS controls how a DIV layer disappears within a specified time

2020-03-30 01:45:00
OfStack

 
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> 
<html xmlns="http://www.w3.org/1999/xhtml"> 
<head> 
<title> Periodically close the layer </title> 
<meta http-equiv="content-type" content="text/html;charset=gb2312"> 
<style> 
#divbox{ 
border:5px solid #0066cc; 
background:skyblue; 
padding:20px; 
font-size:22px; 
color:white; 
} 
</style> 
<script language="javascript"> 
function codefans(){ 
var box=document.getElementById("divbox"); 
box.style.display="none"; 
} 
setTimeout("codefans()",3000);//3 seconds  
</script> 
</head> 
<body> 
<div id="divbox">wwwwwwwwwwwwwwwwwwww ! </div> 
</body> 
</html>