答案：<!DOCTYPE HTML>
<html lang=zh-cn>
<head>
<title>css3的属性transition制作菜单导航</title>
<style>
*{margin:0px;padding:0px;}
body{background:#45B5DA;margin:0px;padding:0px;}
.tips{width:370px;margin:0 auto;line-height:24px;padding-top:10px;}
.bredcolor{color:#fff;}
#nav{position:absolute;top:50%;left:50%;margin-top:-20px;margin-left:-185px;}
li{
width:74px;height:40px;text-align:center;float:left;line-height:40px;color:#fff;text-decoration:none;list-style:none;cursor : pointer;
}
li#chage{
width:70px;height:38px;display:block;position:absolute;left:0px;z-index:-1;border:2px solid #191919;
border-radius:10px;
background:-webkit-gradient(linear, 0 100%, 0 0, from(black), color-stop(0.5, black), color-stop(0.52,#313131), to(#6A6A6A));
box-shadow:0px 2px 0px rgba(255, 255, 255, .3);
-webkit-transform: translate(0px,0px);
-webkit-transition:-webkit-transform .2s ease-out;
}
</style>
</head>
<body>
<section class="tips">
当你运动层在显示层下面时，transition会使页面产生闪动，原因是Chrome在初始渲染CSS动画时产生的Bug，虽然暂时无法考证这个问题的根本原因，但是目前已知的解决方案有两条：<br>
-webkit-backface-visibility: hidden;（设置进行转换的元素的背面在面对用户时是否可见：隐藏）<br>
-webkit-transform-style: preserve-3d; （设置内嵌的元素在 3D 空间如何呈现：保留 3D ）<br>
qq群:197326136
</section>
<section id="nav">
<li href="#" title＝"css3菜单,css3菜单导航">首页</li>
<li href="#" class="nav_2" onmouseover = "zhj.slide(1);" onmouseout = "zhj.slide(0);">首页</li>
<li href="#" onmouseover = "zhj.slide(2);" onmouseout = "zhj.slide(0);">首页</li>
<li href="#" onmouseover = "zhj.slide(3);" onmouseout = "zhj.slide(0);">首页</li>
<li href="#" onmouseover = "zhj.slide(4);" onmouseout = "zhj.slide(0);">首页</li>
<li href="javascript:void(0);" id="chage"></li>
</section>
</body>
<script type="text/javascript">
function $(id){
return typeof id === "string" ? document.getElementById(id) : id;
}
var zhj = {};
zhj.slide = function(index){
var transX = 74*index;
$('chage').style['-webkit-transform'] = 'translate('+transX+'px,0px)';
}
</script>
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