如何将 Header 与表中对齐？

Question

在 DataTable 中启用滚动条 (ScrollY) 后，无法将 header 与表数据对齐。 我尝试了许多在线可用的解决方案，但似乎不起作用。 我试过 display:block 但没有运气。

查看 jsfiddle： https://jsfiddle.net/VM001/dzukjbh3/

<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.4.1/css/bootstrap.min.css">
    <link rel="stylesheet" href="https://cdn.datatables.net/1.10.21/css/jquery.dataTables.min.css">
    <link rel="stylesheet" href="https://cdn.datatables.net/1.10.21/css/dataTables.bootstrap.min.css">


    <script src="https://code.jquery.com/jquery-3.5.1.js"> </script>
    <script src="https://cdn.datatables.net/1.10.21/js/jquery.dataTables.min.js"></script>
    <script src="https://cdn.datatables.net/1.10.21/js/dataTables.bootstrap.min.js"></script>

Datatable:
$(document).ready(function() {
 $("#TableName").Datatable( {
    language: { "search": "Filter"},
    paging: false,
    info: true,
    scrollY:'200px',
    scrollCollapse: true,
    scrollX: false,
   });
});

<table id="TableName" class="table table-hover table-bordered table-striped>
<thead style="display:block">
<tr>
 <th>Item1</th>
 <th>Item2</th>
 <th>Item3</th>
 <th>Item4</th>
</tr>
</thead>
<tbody>
{% for item in items_json %}
<tr>
 <td>{{ item.a }}</td>
<td>{{ item.b }}</td>
<td>{{ item.c }}</td>
<td>{{ item.d }}</td>
</tr>
</tbody>
</table>

Answer 1

我必须删除您的一些 css 规则，但它似乎对我有用：

 $(document).ready(function() { $("#P1SxTable").DataTable( { language: { "search": "Filter"}, paging: false, info: true, scrollY:'50px', scrollCollapse: true, scrollX: false, }); });

 /*table { width: 100%; table-layout: fixed; }*/ th { font-size: 15px; font-weight: bolder; text-align: center; } td { font-size: 15px; text-align: center; } table.table-bordered { border: 2px solid black; } table.table-bordered > thead > tr > th { border: 1px solid black; background-color: lightgrey; } table.table-bordered > tbody > tr > td{ border: 1px solid black; border-top: 1px solid; } /*thead { display: table; width: 100%; } tbody { display: block; height: 200px; }*/

 <link href="https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet"/> <link rel="stylesheet" type="text/css" href="https://cdn.datatables.net/1.10.21/css/dataTables.bootstrap.min.css"/> <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/1.12.4/jquery.min.js"></script> <script src="https://cdn.datatables.net/1.10.21/js/jquery.dataTables.min.js"></script> <script type="text/javascript" src="https://cdn.datatables.net/1.10.21/js/dataTables.bootstrap.min.js"></script> <div class="container-fluid"> <h2>Data</h2> <table id="P1SxTable" class ="table table-hover table-bordered table-striped" style="width: 100%;"> <!--caption><b>P1Sx YTD data</b></caption--> <thead> <tr> <th>Number</th> <th>Severity</th> <th>Description </th> <th>Node Name</th> <th>Assignee</th> <th>Impact minutes</th> </tr> </thead> <tbody> <tr> <td>NumberXXXXX</td> <td>S1 </td> <td>Description size keeps on varying</td> <td>Node cisco123</td> <td>Network Operations</td> <td>Impact1</td> </tr> <tr> <td>NumberYYYYYY</td> <td>S3 </td> <td>Description again is very very very long</td> <td>Firewall Operations</td> <td>Assignee2</td> <td>Impact2</td> </tr> <tr> <td>NumberXXXXX</td> <td>S1 </td> <td>Description size keeps on varying</td> <td>Node cisco123</td> <td>Network Operations</td> <td>Impact1</td> </tr> <tr> <td>NumberYYYYYY</td> <td>S3 </td> <td>Description again is very very very very very very long</td> <td>Firewall Operations</td> <td>Assignee2</td> <td>Impact2</td> </tr> <tr> <td>NumberXXXXX</td> <td>S1 </td> <td>Description size keeps on varying</td> <td>Node cisco123</td> <td>Network Operations</td> <td>Impact1</td> </tr> <tr> <td>NumberYYYYYY</td> <td>S3 </td> <td>Description again is very very very long</td> <td>Firewall Operations</td> <td>Assignee2</td> <td>Impact2</td> </tr> <tr> <td>NumberXXXXX</td> <td>S1 </td> <td>Description size keeps on varying</td> <td>Node cisco123</td> <td>Network Operations</td> <td>Impact1</td> </tr> <tr> <td>NumberYYYYYY</td> <td>S3 </td> <td>Description again is very very very long</td> <td>Firewall Operations</td> <td>Assignee2</td> <td>Impact2</td> </tr> <tr> <td>NumberXXXXX</td> <td>S1 </td> <td>Description size keeps on varying</td> <td>Node cisco123</td> <td>Network Operations</td> <td>Impact1</td> </tr> <tr> <td>NumberYYYYYY</td> <td>S3 </td> <td>Description again is very very very long</td> <td>Firewall Operations</td> <td>Assignee2</td> <td>Impact2</td> </tr> <tr> <td>NumberXXXXX</td> <td>S1 </td> <td>Description size keeps on varying</td> <td>Node cisco123</td> <td>Network Operations</td> <td>Impact1</td> </tr> <tr> <td>NumberYYYYYY</td> <td>S3 </td> <td>Description again is very very very long</td> <td>Firewall Operations</td> <td>Assignee2</td> <td>Impact2</td> </tr> </tbody> </table> </div>

快乐编码！