Css contenteditable的列宽故障

仅在firefox中显示。只需在1单元格的开头添加换行符，即可查看发生的情况，或查看屏幕截图。 我想要的是： 1.列宽必须保持不变 2.桌子只能长得高

<style>
td {
  white-space: pre-wrap;
  word-break: break-all;
  width: 200px;
}
</style>
<table border="1">
  <caption>Таблица размеров обуви</caption>
  <tr>
    <th>Россия</th>
    <th>Великобритания</th>
    <th>Европа</th>
    <th>Длина ступни, см</th>
  </tr>
  <tr>
    <td contenteditable="true">aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa</td>
    <td contenteditable="true">3,5</td>
    <td contenteditable="true">36</td>
    <td contenteditable="true">23</td>
  </tr>
  <tr>
    <td contenteditable="true">35,5</td>
    <td contenteditable="true">4</td>
    <td contenteditable="true">36⅔</td>
    <td contenteditable="true">23–23,5</td>
  </tr>
  <tr>
    <td contenteditable="true">36</td>
    <td contenteditable="true">4,5</td>
    <td contenteditable="true">37⅓</td>
    <td contenteditable="true">23,5</td>
  </tr>
  <tr>
    <td contenteditable="true">36,5</td>
    <td contenteditable="true">5</td>
    <td contenteditable="true">38</td>
    <td contenteditable="true">24</td>
  </tr>
  <tr>
    <td contenteditable="true">37</td>
    <td contenteditable="true">5,5</td>
    <td contenteditable="true">38⅔</td>
    <td contenteditable="true">24,5</td>
  </tr>
  <tr>
    <td contenteditable="true">38</td>
    <td contenteditable="true">6</td>
    <td contenteditable="true">39⅓</td>
    <td contenteditable="true">25</td>
  </tr>
  <tr>
    <td contenteditable="true">38,5</td>
    <td contenteditable="true">6,5</td>
    <td contenteditable="true">40</td>
    <td contenteditable="true">25,5</td>
  </tr>
  <tr>
    <td contenteditable="true">39</td>
    <td contenteditable="true">7</td>
    <td contenteditable="true">40⅔</td>
    <td contenteditable="true">25,5–26</td>
  </tr>
  <tr>
    <td contenteditable="true">40</td>
    <td contenteditable="true">7,5</td>
    <td contenteditable="true">41⅓</td>
    <td contenteditable="true">26</td>
  </tr>
  <tr>
    <td contenteditable="true">40,5</td>
    <td contenteditable="true">8</td>
    <td contenteditable="true">42</td>
    <td contenteditable="true">26,5</td>
  </tr>
  <tr>
    <td contenteditable="true">41</td>
    <td contenteditable="true">8,5</td>
    <td contenteditable="true">42⅔</td>
    <td contenteditable="true">27</td>
  </tr>
  <tr>
    <td contenteditable="true">42</td>
    <td contenteditable="true">9</td>
    <td contenteditable="true">43⅓</td>
    <td contenteditable="true">27,5</td>
  </tr>
  <tr>
    <td contenteditable="true">43</td>
    <td contenteditable="true">9,5</td>
    <td contenteditable="true">44</td>
    <td contenteditable="true">28</td>
  </tr>
  <tr>
    <td contenteditable="true">43,5</td>
    <td contenteditable="true">10</td>
    <td contenteditable="true">44⅔</td>
    <td contenteditable="true">28–28,5</td>
  </tr>
  <tr>
    <td contenteditable="true">44</td>
    <td contenteditable="true">10,5</td>
    <td contenteditable="true">45⅓</td>
    <td contenteditable="true">28,5–29</td>
  </tr>
  <tr>
    <td contenteditable="true">44,5</td>
    <td contenteditable="true">11</td>
    <td contenteditable="true">46</td>
    <td contenteditable="true">29</td>
  </tr>
  <tr>
    <td contenteditable="true">45</td>
    <td contenteditable="true">11,5</td>
    <td contenteditable="true">46⅔</td>
    <td contenteditable="true">29,5</td>
  </tr>
  <tr>
    <td contenteditable="true">46</td>
    <td contenteditable="true">12</td>
    <td contenteditable="true">47⅓</td>
    <td contenteditable="true">30</td>
  </tr>
  <tr>
    <td contenteditable="true">46,5</td>
    <td contenteditable="true">12,5</td>
    <td contenteditable="true">48</td>
    <td contenteditable="true">30,5</td>
  </tr>
  <tr>
    <td contenteditable="true">47</td>
    <td contenteditable="true">13</td>
    <td contenteditable="true">48⅔</td>
    <td contenteditable="true">31</td>
  </tr>
  <tr>
    <td contenteditable="true">48</td>
    <td contenteditable="true">13,5</td>
    <td contenteditable="true">49⅓</td>
    <td contenteditable="true">31,5</td>
  </tr>
</table>
</body>

</html>

运输署{
空白：预包装；
单词break：打破一切；
宽度：200px；
}
Таблица размеров обуви
Россия
Великобритания
Европа
Длина ступни, см
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
3,5
36
23
35,5
4.
36⅔
23–23,5
36
4,5
37⅓
23,5
36,5
5.
38
24
37
5,5
38⅔
24,5
38
6.
39⅓
25
38,5
6,5
40
25,5
39
7.
40⅔
25,5–26
40
7,5
41⅓
26
40,5
8.
42
26,5
41
8,5
42⅔
27
42
9
43⅓
27,5
43
9,5
44
28
43,5
10
44⅔
28–28,5
44
10,5
45⅓
28,5–29
44,5
11
46
29
45
11,5
46⅔
29,5
46
12
47⅓
30
46,5
12,5
48
30,5
47
13
48⅔
31
48
13,5
49⅓
31,5

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使用“最大宽度”设置最大宽度

td {
  white-space: pre-wrap;
  word-break: break-all;
  width: 200px;
  max-width: 200px;
}

溢出的内容现在将在高度而不是宽度上溢出

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文档：

通过添加最大宽度：200px；可以保持表的固定最大值，但firfox中的文本仍在上升