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使用clssneme改变图片或样式
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<title>使用className改变样式</title>
<style type="text/css">
li{
font-size: 12px;
color: #ffffff;
background-image: url(images/bg1.gif);
background-repeat: no-repeat;
text-align: center;
height: 33px;
width:104px;
line-height:38px;
float:left;
list-style:none;
}
.out{
background-image: url(images/bg1.gif);
}
.over{
background-image: url(images/bg2.gif);
color:#ffff00;
font-weight:bold;
cursor:hand;
}
</style>
</head> <body>
<ul>
<li onmouseover="this.className='over'" onmouseout="this.className='out'">资讯动态</li>
<li onmouseover="this.className='over'" onmouseout="this.className='out'">产品世界</li>
<li onmouseover="this.className='over'" onmouseout="this.className='out'">市场营销</li>
</ul> </body>
