鼠标经过时 表格行的背景色更改
<html>
<head>
<style type="text/css">
#customers
{
font-family:"Trebuchet MS", Arial, Helvetica, sans-serif;
width:100%;
border-collapse:collapse;
}
#customers td, #customers th
{
font-size:1em;
border:1px solid #98bf21;
padding:3px 7px 2px 7px;
}
#customers th
{
font-size:1.1em;
text-align:left;
padding-top:5px;
padding-bottom:4px;
background-color:#A7C942;
color:#ffffff;
}
</style>
</head>
<body>
<table id="customers">
<tr>
<th>Company</th>
<th>Contact</th>
<th>Country</th>
</tr>
<tr onMouseOver="style.backgroundColor='#FF9900'" onMouseOut="style.backgroundColor='#FFFFFF'">
<td>Apple</td>
<td>Steven Jobs</td>
<td>USA</td>
</tr>
<tr class="alt" onMouseOver="style.backgroundColor='#FF9900'" onMouseOut="style.backgroundColor='#FFFFFF'">
<td>Baidu</td>
<td>Li YanHong</td>
<td>China</td>
</tr>
<tr onMouseOver="style.backgroundColor='#FF9900'" onMouseOut="style.backgroundColor='#FFFFFF'">
<td>Google</td>
<td>Larry Page</td>
<td>USA</td>
</tr>
<tr class="alt" onMouseOver="style.backgroundColor='#FF9900'" onMouseOut="style.backgroundColor='#FFFFFF'">
<td>Lenovo</td>
<td>Liu Chuanzhi</td>
<td>China</td>
</tr>
<tr onMouseOver="style.backgroundColor='#FF9900'" onMouseOut="style.backgroundColor='#FFFFFF'">
<td>Microsoft</td>
<td>Bill Gates</td>
<td>USA</td>
</tr>
<tr class="alt" onmouseover="style.backgroundColor='#FF9900'" o
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