文本框设置100%宽度，内容过多时所在td的宽度失效_html/css_WEB-ITnose
最近在修改项目的一个需求变更时，无意间发现了以前的一个问题，
这里拿出来讨论，可能在其他项目中没有碰到这样的需求或者无意中规避了这个问题
也或许已经有html&CSS高手把问题解决，都请来分享一下经验：
问题描述如下
因为客户不太懂技术，把上述td的宽度设置了百分比，然后为了好看又把里面的文本框也设置了width:100%，想让他自适应
更改之后变成这样
1 <html> 2 <head> 3 4 </head> 5 <body> 6 <table style="background-color:green;width:100%"> 7 <tr> 8 <th style="width:20%;background-color:red">th1</th> 9 <td style="width:30%;background-color:yellow">10 <input type="text" style="width:100%" maxlength="100" value="">11 </td>12 <th style="width:30%;background-color:red">th2</th>13 <td style="width:20%;background-color:yellow">14 <input type="text" maxlength="100" style="width:100%" value="">15 </td>16 </tr>17 </table>18 <table style="background-color:white;width:100%">19 <tr>20 <th style="width:20%;background-color:red">th1</th>21 <td style="background-color:yellow">22 <input type="text" maxlength="100" style="width:100%" value="">23 </td>24 25 </tr>26 <tr>27 <th style="width:20%;background-color:red">th1</th>28 <td style="background-color:yellow">29 <input type="text" maxlength="100" style="width:100%" value="">30 </td>31 32 </tr>33 <tr>34 <th style="width:20%;background-color:red">th1</th>35 <td style="background-color:yellow">36 <input type="text" maxlength="20" style="width:100%" value="">37 </td>38 39 </tr>40 <tr>41 <th style="width:20%;background-color:red">th1</th>42 <td style="background-color:yellow">43 <input type="text" maxlength="20" style="width:100%" value="">44 </td>45 46 </tr>47 <tr>48 <th style="width:20%;background-color:red">th1</th>49 <td style="background-color:yellow">50 <input type="text" maxlength="20" style="width:100%" value="">51 </td>52 53 </tr>54 </table>55 </body>56 </html>
因为是老代码，这个画面恶心的地方首先是第一行和下面的各行不在一个table里，
图中的这个文本框对应的数据库表对应的字段是一个100位英文内容，如果满位输出的话，画面变成了这样。。。
1 <html> 2 <head> 3 4 </head> 5 <body> 6 <table style="background-color:green;width:100%"> 7 <tr> 8 <th style="width:20%;background-color:red">th1</th> 9 <td style="width:30%;background-color:yellow">10 <input type="text" style="width:100%" maxlength="100" value="0123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789">11 </td>12 <th style="width:30%;background-color:red">th2</th>13 <td style="width:20%;background-color:yellow">14 <input type="text" maxlength="100" style="width:100%" value="">15 </td>16 </tr>17 </table>18 <table style="background-color:white;width:100%">19 <tr>20 <th style="width:20%;background-color:red">th1</th>21 <td style="background-color:yellow">22 <input type="text" maxlength="100" style="width:100%" value="">23 </td>24 25 </tr>26 <tr>27 <th style="width:20%;background-color:red">th1</th>28 <td style="background-color:yellow">29 <input type="text" maxlength="100" style="width:100%" value="">30 </td>31 32 </tr>33 <tr>34 <th style="width:20%;background-color:red">th1</th>35 <td style="background-color:yellow">36 <input type="text" maxlength="20" style="width:100%" value="">37 </td>38 39 </tr>40 <tr>41 <th style="width:20%;background-color:red">th1</th>42 <td style="background-color:yellow">43 <input type="text" maxlength="20" style="width:100%" value="">44 </td>45 46 </tr>47 <tr>48 <th style="width:20%;background-color:red">th1</th>49 <td style="background-color:yellow">50 <input type="text" maxlength="20" style="width:100%" value="">51 </td>52 53 </tr>54 </table>55 </body>56 </html>
目测，这个文本框因为有一个maxlength=100,的设置，ie试图在允许的范围下，把内容全部显示，但是这样的话，画面就乱了，
测试环境是：IE 9，IE 8下也存在该问题，在chrome下完美解析，如下图：
所以据此推测是IE在解析INPUT上和chrome内核不太一致，但是现在开发是在IE8上进行，除了设置固定width和使用Js动态加载，有没有别的办法来兼容解决问题。。。
注：style=“table-layout:fixed”我用过了，但是这个办法有点狠，不太适合
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