javascript - 如何将我的 td 与等宽对齐？

Question

这是我的 html 代码:http://jsfiddle.net/Udxyb/427/

在下面的代码中..在每一列(第 1 节、第 2 节、第 3 节、第 4 节)下，我想要两个相等的列，如果输入数据很长，这些列不应变化。 相反，两列的宽度必须保持不变而不是增加。这可能吗？？？

<table id="main_table" style="width:100%">
    <thead>
        <tr class="firstline">
            <th colspan="2">Column1</th>
            <th colspan="2">Column2</th>
            <th colspan="2">Column3</th>
            <th colspan="2">Column4</th>
        </tr>
    </thead>
    <tbody>
        <tr style="width:1002px; background-color:green; color:white">
            <td  colspan="2" class="flip" style="width:250px;"> Section 1 </td>
              <td  colspan="2" class="flip" style="width:250px;"> Section 1 </td>
             <td  colspan="2" class="flip" style="width:250px;"> Section 1 </td>
             <td  colspan="2" class="flip" style="width:250px;"> Section 1 </td>
        </tr>
    </tbody>
    <tbody class="section">
        <tr>
            <td style="width:125px;">item 111sdfgadgrfag</td>
            <td>item 112</td>
            <td>item 113</td>
            <td>item 114</td>
            <td>item 115</td>
            <td>item 116</td>
            <td>item 117</td>
            <td>item 118dfgdfgdfgdfgg</td>
      </tr>
        <tr>
            <td colspan="2">item 121</td>
            <td colspan="2">item 122</td>
            <td colspan="2">item 123</td>
            <td colspan="2">item 124</td>
        </tr>
        <tr>
            <td colspan="2">item 131</td>
            <td colspan="2">item 132</td>
            <td colspan="2">item 133</td>
            <td colspan="2">item 134</td>
        </tr>
    </tbody>
    <tbody>
        <tr style="background-color:green; color:white">
            <td  colspan="2" class="flip" style="width:250px;"> Section 2 </td>
             <td  colspan="2" class="flip" style="width:250px;"> Section 2 </td>
             <td  colspan="2" class="flip" style="width:250px;"> Section 2 </td>             <td  colspan="2" class="flip" style="width:250px;"> Section 2 </td>
        </tr>
    </tbody>
    <tbody class="section">
        <tr>
            <td colspan="2">item 211</td>
            <td colspan="2">item 212</td>
            <td colspan="2">item 213</td>
            <td colspan="2">item 214</td>
        </tr>
        <tr>
            <td colspan="2">item 221</td>
            <td colspan="2">item 222</td>
            <td colspan="2">item 223</td>
            <td colspan="2">item 224</td>
        </tr>
        <tr>
            <td colspan="2">item 231</td>
            <td colspan="2">item 232</td>
            <td colspan="2">item 233</td>
            <td colspan="2">item 234</td>
        </tr>
    </tbody>
    <tbody>
        <tr style="background-color:green; color:white">
             <td  colspan="2" class="flip" style="width:250px;"> Section 3 </td>
             <td  colspan="2" class="flip" style="width:250px;"> Section 3 </td>
             <td  colspan="2" class="flip" style="width:250px;"> Section 3 </td>
             <td  colspan="2" class="flip" style="width:250px;"> Section 3 </td>
        </tr>
    </tbody>
    <tbody class="section">
        <tr>
            <td colspan="2">item 311</td>
            <td colspan="2">item 312</td>
            <td colspan="2">item 313</td>
            <td colspan="2">item 314</td>
        </tr>
        <tr>
            <td colspan="2">item 321</td>
            <td colspan="2">item 322</td>
            <td colspan="2">item 323</td>
            <td colspan="2">item 324</td>
        </tr>
        <tr>
            <td colspan="2">item 331</td>
            <td colspan="2">item 332</td>
            <td colspan="2">item 333</td>
            <td colspan="2">item 334</td>
        </tr>
    </tbody>
</table>

Answer 1

写:

#main_table{table-layout:fixed;}

Updated fiddle here.