CSS Spite技术：也就是CSS精灵技术，实际上CSS的精灵就是图片里的一个个的图标元素，这些图标可以使按钮、标签以及logo等等。很多网站中都应用了该技术，可有效减少传输请求次数，所需要的图标汇总在一张图片中，一次下载即可整个页面应用
以下示例主要是CSS精灵技术的应用，直接Po代码：
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>酷狗电台列表设计</title>
<style>
#frm{
margin:0;
padding:0;
list-style-type: none;
width: 500px;
border:1px solid #000;
overflow: hidden;
}
#frm *{
margin:0;
padding: 0;
font-size: 12px;
}
#frm li{
padding:4px 0;
width: 47%;
float: left;
margin:5px 15px 5px 0;
cursor: pointer;
}
#frm li span{
color:#999;
position: relative;
}
#frm li .d{
width: 38px;
height: 38px;
float: left;
margin:0px 12px 6px 0;
background-image: url(img/spite2.jpg);
position: relative;
}
#frm li .cont{
position: relative;
height: 37px;
overflow: hidden;
}
.cont div{
margin:5px 0 5px 0;
}
.d div{
position: absolute;
width: 100%;
height: 100%;
}
.d .img,.d .play{
background-image: url(img/spite2.jpg);
}
.l1 .d .img{
background-position: 38px 0;
}
.l2 .d .img{
background-position: 76px 0;
}
.l3 .d .img{
background-position: 114px 0;
}
.l4 .d .img{
background-position: 152px 0;
}
.l5 .d .img{
background-position: 190px 0;
}
.l6 .d .img{
background-position: 228px 0;
}
.l7 .d .img{
background-position: 266px 0;
}
.l8 .d .img{
background-position: 304px 0;
}
.l9 .d .img{
background-position: 342px 0;
}
.ll .d .img{
background-position: 380px 0;
}
.d .mask,.d .play{
visibility: hidden;
}
.choose .d{
background-position: 38px 0;
outline: 1px solid rgb(233,243,250);
}
.choose .d .mask{
background-color: #000;
filter:alpha(Opacity=50);
opacity: 0.5;
height: 32px;
width: 32px;
top:3px;
left: 3px;
visibility: visible;
}
.choose .d .play{
background-position: 418px 0;
visibility: visible;
}
.choose .cont div{
font-weight: bold;
color:rgb(0,155,250);
}
</style>
<script>
function mouseoverhandle(obj){
obj.className += ' choose';
}
function mouseouthandle(obj){
obj.className = obj.className.substring(0,2);
}
</script>
</head>
<body>
<ul id="frm">
<li class="l1" onmouseover="mouseoverhandle(this)" onmouseout="mouseouthandle(this)">
<div class="d"> 新闻热点
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