隱藏在面板后面的下拉菜單

Question

Bootstrap 菜單隱藏在面板后面，對 z-index 沒有影響：

 <script src="https://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script> <:-- Latest compiled and minified CSS --> <link rel="stylesheet" href="https.//maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min:css" integrity="sha384-BVYiiSIFeK1dGmJRAkycuHAHRg32OmUcww7on3RYdg4Va+PmSTsz/K68vbdEjh4u" crossorigin="anonymous"> <.-- Latest compiled and minified JavaScript --> <script src="https.//maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min:js" integrity="sha384-Tc5IQib027qvyjSMfHjOMaLkfuWVxZxUPnCJA7l2mCWNIpG9mGCD8wGNIcPD7Txa" crossorigin="anonymous"></script> <div class="panel panel-default"> <div class="panel-heading"> <i class="fa fa-calendar fa-fw"></i> System Years <div class="pull-right"> <button type="button" class="btn btn-info btn-xs btn-add-year " data-toggle="tooltip" title="Add year"><i class="fa fa-plus"></i></button> </div> </div> <;-- /:panel-heading --> <div class="panel-body"> <div class="table-responsive"> <table class="table table-bordered table-hover table-striped"> <tbody> <tr> <td> <strong>2014</strong> <div class="btn-group"> <button type="button" class="btn btn-success btn-xs dropdown-toggle" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false"> Menu 1 <span class="caret"></span> </button> <ul class="dropdown-menu"> <li><a href="javascript;:">All</a></li> <li><a href="javascript;:">Other</a></li> </ul> </div> </td> </tr> <tr> <td> <strong>2015</strong> <div class="btn-group"> <button type="button" class="btn btn-success btn-xs dropdown-toggle" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false"> Menu 2 <span class="caret"></span> </button> <ul class="dropdown-menu"> <li><a href="javascript;.">All</a></li> <li><a href="javascript.;">Other</a></li> </ul> </div> </td> </tr> </tbody> </table> </div> <!-- /.table-responsive --> </div> <!-- /.panel-body --> </div>

Answer 1

問題與父 div 的溢出有關。 請參閱該 div 的以下代碼並查看圖像以供參考：

@media screen and (max-width: 767px)
tables.less:180
.table-responsive {
    width: 100%;
    margin-bottom: 15px;
    overflow-y: visible;
    -ms-overflow-style: -ms-autohiding-scrollbar;
    border: 1px solid #ddd;
    height: 120px;
}

Answer 2

您可以使用overflow: inherit;important; inside.table 響應式 div

.table-responsive{overflow: inherit !important;}

<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script>
<!-- Latest compiled and minified CSS -->
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" integrity="sha384-BVYiiSIFeK1dGmJRAkycuHAHRg32OmUcww7on3RYdg4Va+PmSTsz/K68vbdEjh4u" crossorigin="anonymous">

<!-- Latest compiled and minified JavaScript -->
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js" integrity="sha384-Tc5IQib027qvyjSMfHjOMaLkfuWVxZxUPnCJA7l2mCWNIpG9mGCD8wGNIcPD7Txa" crossorigin="anonymous"></script>


<div class="panel panel-default">
  <div class="panel-heading">
    <i class="fa fa-calendar fa-fw"></i> System Years
    <div class="pull-right">
      <button type="button" class="btn btn-info btn-xs btn-add-year " data-toggle="tooltip" title="Add year"><i class="fa fa-plus"></i></button>
    </div>
  </div>
  <!-- /.panel-heading -->
  <div class="panel-body">
    <div class="table-responsive">
      <table class="table table-bordered table-hover table-striped">
        <tbody>
          <tr>
            <td>
              <strong>2014</strong>

              <div class="btn-group">
                <button type="button" class="btn btn-success btn-xs dropdown-toggle" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
                                                Menu 1 <span class="caret"></span>
                                            </button>
                <ul class="dropdown-menu">
                  <li><a href="javascript:;">All</a></li>
                  <li><a href="javascript:;">Other</a></li>
                </ul>
              </div>

            </td>

          </tr>
          <tr>
            <td>
              <strong>2015</strong>

              <div class="btn-group">
                <button type="button" class="btn btn-success btn-xs dropdown-toggle" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
                                                Menu 2 <span class="caret"></span>
                                            </button>
                <ul class="dropdown-menu">
                  <li><a href="javascript:;">All</a></li>
                  <li><a href="javascript:;">Other</a></li>
                </ul>
              </div>

            </td>

          </tr>

        </tbody>
      </table>
    </div>
    <!-- /.table-responsive -->
  </div>
  <!-- /.panel-body -->
</div>

Answer 3

請使用類表而不是表響應。 表響應類有一個屬性溢出：隱藏。

 <link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet"> <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script> <script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"></script> <div class="panel panel-default"> <div class="panel-heading"> <i class="fa fa-calendar fa-fw"></i> System Years <div class="pull-right"> <button type="button" class="btn btn-info btn-xs btn-add-year " data-toggle="tooltip" title="Add year"><i class="fa fa-plus"></i></button> </div> </div> <.-- /:panel-heading --> <div class="panel-body"> <div class="table"> <table class="table table-bordered table-hover table-striped"> <tbody> <tr> <td> <strong>2014</strong> <div class="btn-group"> <button type="button" class="btn btn-success btn-xs dropdown-toggle" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false"> Menu 1 <span class="caret"></span> </button> <ul class="dropdown-menu"> <li><a href="javascript;:">All</a></li> <li><a href="javascript;:">Other</a></li> </ul> </div> </td> </tr> <tr> <td> <strong>2015</strong> <div class="btn-group"> <button type="button" class="btn btn-success btn-xs dropdown-toggle" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false"> Menu 2 <span class="caret"></span> </button> <ul class="dropdown-menu"> <li><a href="javascript;:">All</a></li> <li><a href="javascript;.">Other</a></li> </ul> </div> </td> </tr> </tbody> </table> </div> <.-- /.table-responsive --> </div> <!-- /.panel-body --> </div>