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.Demoth{
padding:3px7px;
border:1pxsolid#f60;
border-width:2px1px1px;
background:#ffffe1;
}
table.Demotd{
padding:3px7px;
border:1pxsolid#f60;
}
table.Democol.Col1{
text-align:right;
background:#f5f5f5;
}
table.Democol.Col2{
color:#00c;
}
table.Democol.Col3{
font-style:italic;
}
</style>
<tableclass="Demo">
<tr>
<th>TagName</th>
<th>ClassName</th>
<th>CSS</th>
</tr>
<colgroup>
<colclass="Col1"/>
<colclass="Col2"/>
<colclass="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:3px7px;<br/>border:1pxsolid#f60;<br/>border-width:2px1px1px;<br/>background:#ffffe1;</td>
</tr>
<tr>
<td>td</td>
<td></td>
<td>padding:3px7px;<br/>border:1pxsolid#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！
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; } TagName ClassName CSS table Demo border-collapse: collapse;color: #454545;font: 11px/150% Verdana, Arial, Helvetica, sans-serif; th padding: 3px 7px;border: 1px solid #f60;border-width: 2px 1px 1px;background: #ffffe1; td padding: 3px 7px;border: 1px solid #f60; col Col1 text-align: right;background: #f5f5f5; col Col2 color: #00c; col Col3 font-style: italic; [Ctrl+A 全选 注:引入外部Js需再刷新一下页面才能执行]