定义表格各列的样式，不用每个td都在那里加一堆的Class，利用th,colgroup,col等属性，轻松搞定^_^
代码如下：
复制代码 代码如下:
<style>
table.Demo {
border-collapse: collapse;
color: #454545;
font: 11px/150% Verdana, Arial, Helvetica, sans-serif;
}
table.Demo th {
padding: 3px 7px;
border: 1px solid #f60;
border-width: 2px 1px 1px;
background: #ffffe1;
}
table.Demo td {
padding: 3px 7px;
border: 1px solid #f60;
}
table.Demo col.Col1 {
text-align: right;
background: #f5f5f5;
}
table.Demo col.Col2 {
color: #00c;
}
table.Demo col.Col3 {
font-style: italic;
}
</style>
<table class="Demo">
<tr>
<th>TagName</th>
<th>ClassName</th>
<th>CSS</th>
</tr>
<colgroup>
<col class="Col1" />
<col class="Col2" />
<col class="Col3" />
</colgroup>
<tr>
<td>table</td>
<td>Demo</td>
<td>border-collapse: collapse;<br />color: #454545;<br />font: 11px/150% Verdana, Arial, Helvetica, sans-serif;</td>
</tr>
<tr>
<td>th</td>
<td></td>
<td>padding: 3px 7px;<br />border: 1px solid #f60;<br />border-width: 2px 1px 1px;<br />background: #ffffe1;</td>
</tr>
<tr>
<td>td</td>
<td></td>
<td>padding: 3px 7px;<br />border: 1px solid #f60;</td>
</tr>
<tr>
<td>col</td>
<td>Col1</td>
<td>text-align: right;<br />background: #f5f5f5;</td>
</tr>
<tr>
<td>col</td>
<td>Col2</td>
<td>color: #00c;</td>
</tr>
<tr>
<td>col</td>
<td>Col3</td>
<td>font-style: italic;</td>
</tr>
</table>
抛砖引玉，更多效果就由你DIY了！
[Ctrl+A 全选 注:引入外部Js需再刷新一下页面才能执行]