相关疑难解决方法(0)

.table-sticky th {
  background: #fff;
  position: sticky;
  top: -1px;
  z-index: 990;
}

<div class="table-responsive p-0 mt-2">
  <table class="table table-sm table-striped table-hover table-sticky">
    <thead>
      <tr>
        <th>#</th>
        <th>Header</th>
        <th>Header</th>
        <th>Header</th>
        <th>Header</th>
      </tr>
    </thead>
    <tbody>
      <tr>
        <td>1,001</td>
        <td>Lorem</td>
        <td>ipsum</td>
        <td>dolor</td>
        <td>sit</td>
      </tr>
      <tr>
        <td>1,002</td>
        <td>amet</td>
        <td>consectetur</td>
        <td>adipiscing</td>
        <td>elit</td>
      </tr>
    </tbody>
  </table>
</div>