It seems that the column width cannot be specified when the data in the table cell is a link. How do I make this link wrap and respect the column width I provide?

<link href="https://cdn.jsdelivr.net/npm/bootstrap@5.0.2/dist/css/bootstrap.min.css" rel="stylesheet"/>

<div class="container">
<table class="table table-fixed table-striped table-hover table-bordered">
<thead>
  <th>1</th>
  <th>2</th>
  <th>3</th>
  <th>4</th>
  <th>5</th>
  <th>6</th>
  <th>7</th>
  <th>8</th>
  <th>9</th>
  <th>10</th>
  <th>11</th>
  <th>12</th>
</thead>
<tbody>
</tbody>
  <tr>
    <td width="50px"><a href="#">12,45,78,65,45,78,21,54,98,87,5,21,64,87,54,21,87,54,54,54,21,54,87,21,54,</a></td>
    <td>1</td>
    <td>2</td>
    <td>43</td>
    <td>6</td>
    <td>dfgh</td>
    <td>dfg</td>
    <td>dfg</td>
    <td>sadf</td>
    <td>fgj</td>
    <td>sdf</td>
    <td>sdf</td>
  </tr>
</table>
</div>