CSS: border-collapse 속성은 테이블의 테두리 문제를 해결합니다.

.table{
border: 1px solid #ccc;
border-collapse: collapse; 
width:80%;}
.table th,
.table td{
border: 1px solid #ccc;
padding: 10px;
}

<table class="table"> 
<thead> 
<tr> 
<th>id</th> 
<th>作者</th> 
<th>书名</th> 
<th>内容</th> 
<th>分类</th> 
</tr> 
</thead> 
<tbody> 
<tr> 
<td>001</td> 
<td>唐家三少</td> 
<td>斗破苍穹</td> 
<td>斗破苍穹斗破苍穹</td> 
<td>玄幻</td> 
</tr> 
<tr class="success"> 
<td>001</td> 
<td>唐家三少</td> 
<td>斗破苍穹</td> 
<td>斗破苍穹斗破苍穹</td> 
<td>玄幻</td> 
</tr> 
</tbody> 
</table>