js鼠标移上出现一个div层,可以显示用于标注或是显示图层等
<!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=gb2312" />
<title>无标题文档</title>
<style type="text/css">
#div1{ width:150px; height:150px; background-color:#006699; position:absolute; z-index:999px; display:none;}
.box{ background-color:#FF0000}
</style>
</head>
<body>
<table width="500" border="0" align="center" cellpadding="0" cellspacing="0">
<tr>
<td><a onmouseover="document.getElementById('div1').style.display='block';" onmouseout="document.getElementById('div1').style.display='none'">中国电信</a>
<div id="div1"></div></td>
<td>无</td>
</tr>
<tr>
<td>可以</td>
<td>完</td>
</tr>
<tr>
<td>人</td>
<td>告</td>
</tr>
<tr>
<td>行</td>
<td>电信</td>
</tr>
<tr>
<td> </td>
<td> </td>
</tr>
</table>
</body>
</html>