html中table表格的内容水平和垂直居中显示

#class td /*设置表格文字左右和上下居中对齐*/

{ 

    vertical-align: middle;

    text-align: center; 

}

/*class 是所属的类*/

<p id="class" align="center" style= "margin: 0cm 0cm 0pt; text-align: left">                                                                     

<table class="table table-bordered" border="1" width="100%" style="font-size: 14pt; color: #000000; font-family: 楷体;mso-ascii-font-family: 'times new roman'; mso-hansi-font-family: 'times new roman'">                                                            

<caption><h2 style="text-align: left;font-size: 16pt;font-family: 宋体;color: red;">title</h2><

/caption>                                                             

<tbody >                                                                

<tr style="font-weight: bold;mso-bidi-font-size: 12.0pt;font-family: 宋体;" >                                                                     

<td>序号</td>                                                                     

<td>适用情况</td>                                                                     

 <td>详情</td>                                                                      

<td>备注</td>                                                                  

 </tr>                                                                                                                                      

<tr>                                                                   

<td>1</td>                                                                    

<td>xxxxx</td>                                                                     

<td style="text-align: left;"> <!--指定靠左对齐-->                                                                    

 <span>                                                                            

xxxxxx<br>                                                                                                                                                       

</span>                                                                     

</td>                                                                      

<td><a href="#">查看详情</a>

</td>                                                             

</tr>                                               

</tbody>                                                         

</table>

</p>