用css给tbody加垂直滚动条的具体思路及样式代码

思路就是

1，把tbody设置成display:block，然后就对其高度设置一个固定值，overflow设置成auto。

2，把thead的tr设置成display:block。

3，因为都设置成block所以要给td手动添加宽度 width:200px

代码如下：

<table class=”table”>
<thead>
<tr>
<th>Id</th>
<th>Name</th>
<th>Category</th>
<th>MonthAmount</th>
<th>hasBackUp</th>
<th>score</th>
</tr>
</thead>
<tbody>
<tr>
<td>23</td>
<td>South Bearing</td>
<td>Glass/Material</td>
<td>1234444</td>
<td>TRUE</td>
<td>3456.00</td>
</tr>
<tr>
<td>23</td>
<td>South Bearing</td>
<td>Glass/Material</td>
<td>1234444</td>
<td>TRUE</td>
<td>3456.00</td>
</tr>
<tr>
<td>23</td>
<td>South Bearing</td>
<td>Glass/Material</td>
<td>1234444</td>
<td>TRUE</td>
<td>3456.00</td>
</tr>
<tr>
<td>23</td>
<td>South Bearing</td>
<td>Glass/Material</td>
<td>1234444</td>
<td>TRUE</td>
<td>3456.00</td>
</tr>
<tr>
<td>23</td>
<td>South Bearing</td>
<td>Glass/Material</td>
<td>1234444</td>
<td>TRUE</td>
<td>3456.00</td>
</tr>
<tr>
<td>23</td>
<td>South Bearing</td>
<td>Glass/Material</td>
<td>1234444</td>
<td>TRUE</td>
<td>3456.00</td>
</tr>
<tr>
<td>23</td>
<td>South Bearing</td>
<td>Glass/Material</td>
<td>1234444</td>
<td>TRUE</td>
<td>3456.00</td>
</tr>
<tr>
<td>23</td>
<td>South Bearing</td>
<td>Glass/Material</td>
<td>1234444</td>
<td>TRUE</td>
<td>3456.00</td>
</tr>
<tr>
<td>23</td>
<td>South Bearing</td>
<td>Glass/Material</td>
<td>1234444</td>
<td>TRUE</td>
<td>3456.00</td>
</tr>
<tr>
<td>23</td>
<td>South Bearing</td>
<td>Glass/Material</td>
<td>1234444</td>
<td>TRUE</td>