How to increase the popover width

$(document).ready(function(){
 $('#autodelete_spmlds').popover({
  placement: 'bottom',
  title: '<span style="color:black;font-size: 12px;font-family:Open Sans,Helvetica Neue,Helvetica,Arial,sans-serif">Settings</span>' + ('&nbsp;') + ('&nbsp;') + '<button type="button" class="close pull-right" data-dismiss="alert" style="color:black;">&times;</button>',
  html: true,
  content: function () {
  return $('#autodelete').html();
  }
 });
 
 $(document).on("click", ".popover .close" , function(){
        $(this).parents(".popover").popover('hide');
  
 });
});



<div class='hide' id='autodelete'>
   <form class="form-bordered" action="<?=base_url()?>approval/update_selectedspmlds" id="spm_options" name="" method="post" >
    <div class="panel-group">
     <div class="panel panel-default">
      <label>Delete After</label>
      <select class="form-control" id="spm" name="spm" required>
       <option value=""> Delete Leads automatically </option>
       <option value="7">1 Week Older</option>
       <option value="30">1 Month</option>
       <option value="60">2 Month</option>
      </select>
     </div>
     <br/>
     <div class="popover-footer">
      <input type="submit" id="smtbtn" class="btn btn-info btn-sm" value="Save">
     </div>
    </div>
   </form>
  </div>