Ctrl+/
IE11
F11
ESC
PgUp
PgDn
<!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>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>下拉缓冲</title>
<script>
function fx(el,attr,to){
el=typeof el=='string'?document.getElementById(el):el;
if(to>0)el.style.display='block';
var w=el['offset'+attr.replace(/^(.)/,new Function('return arguments[1].toUpperCase()'))];
var Int=Math[to-w>0?'ceil':'floor'];
clearInterval(el.timer);
el.timer=setInterval(function(){
w+=Int((to-w)*0.1);
el.style[attr]=w+'px';
CSS代码...
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JS代码...