纯纯css实现鼠标滑过弹出层效果实现鼠标滑过弹出层效果
弹出层想必大家都有见到过吧，在以前或许是使用js实现的，不过现在我们可以使用纯css来实现了，下面有个
不错的示例，感兴趣的朋友可以参考下
复制代码
代码如下:
<!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>无标题文档</title>
<style type="text/css" >
*{margin:0; padding:0;} /* 所有元素外边距为0 内边距为0 */
/* body中元素字体大小为12px,字体样式为:"Times New Roman", Times, serif,背景色:#333 */
body{font-size:12px; font-family:"Times New Roman", Times, serif; background-color:#333;}
/* id为main的元素上下外边距为100px,左右外边距为自动;宽度为300px */
#main{margin:100px auto; width:300px;}
/* id为main的元素中无序列表列表样式为隐藏 */
#main ul{list-style:none;}
/* id为main的元素中的无序列表下的li块 行高为20px, 下边框的样式为1px dashed #FC0 */
#main ul li{line-height:20px; border-bottom:1px dashed #FC0;}
/* id为main的元素中的无序列表下的li块 中的a标签 颜色为#E7E7E7;关闭文本修饰;相对定位;元素当做块元素显示,前后会有换
行符*/
#main ul li a{color:#E7E7E7; text-decoration:none; position:relative; display:block;}
/* id为main的元素中的无序列表下的li块 中的a标签 下的div元素 隐藏 */
<span style="color:#FF0000"> #main ul li a div{display:none;}
#main ul li a:hover{color:#FFF;}
#main ul li a:hover div{position:absolute; left:280px; top:-40px; background-color:#FFF; display:block; width:300px;
height:100px; color:#000; overflow:hidden;}
#main ul li a:hover div dt{float:left; width:8px; background:url(234.gif) center no-repeat;height:100px; display:block;
background-color:#333;}
#main ul li a:hover div dd{float:right ; width:270px; height:auto; line-height:18px; padding:6px 10px;}</span>
</style>
</head>
<body>
<p>
</p>
<p>
</p>
<div id="main">
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