Consider moving away from tables and utilizing bootstrap for a more modern design approach. However, if tables are necessary, ensure that the table rows and columns are consistent in structure.
For an example of proper nesting, take a look at this updated fiddle here
<div class="container">
<table class="table table-bordered">
<thead style="" class="">
<tr class="d-flex">
<th class="col-6">My </th>
<th class="col-6"></th>
</tr>
</thead>
<tbody>
<tr class="d-flex">
<td class="text-sm-left col-sm-11">some text
</td>
<td class="text-sm-right col-sm-1">
<div class="switch">
<input id="cmn-toggle-5" class="cmn-toggle cmn-toggle-round-flat" type="checkbox">
<label for="cmn-toggle-5"></label>
</div>
</td>
</tr>
<tr class="d-flex">
<td class="text-sm-left col-sm-11">some text
</td>
<td class="text-sm-right col-sm-1">
<div class="switch">
<input id="cmn-toggle-5" class="cmn-toggle cmn-toggle-round-flat" type="checkbox">
<label for="cmn-toggle-5"></label>
</div>
</td>
</tr>
<tr class="d-flex">
<td class="col-sm-12">testtexttex :</td>
</tr>
<tr class="d-flex">
<td class="col-sm-11">Option1
<button type="button" class='btn btn-secondary '>
<span class="fa fa-envelope"></span>
</button></td>
<td class="col-sm-1">
<div class="switch">
<input id="cmn-toggle-5" class="cmn-toggle cmn-toggle-round-flat" type="checkbox">
<label for="cmn-toggle-5"></label>
</div>
</td>
</tr>
<tr class="d-flex">
<td class="col-sm-11">Option2
<button type="button" class='btn btn-secondary '>
<span class="fa fa-envelope"></span>
</button></td>
<td class="col-sm-1">
<div class="switch">
<input id="cmn-toggle-5" class="cmn-toggle cmn-toggle-round-flat" type="checkbox">
<label for="cmn-toggle-5"></label>
</div>
</td>
</tr>
</tbody>
</table>
</div>