bootstrap datepicker

                                    <div class="container">
   <div class="row">
      <div class='col-sm-6'>
         <div class="form-group">
            <div class='input-group date' id='datetimepicker1'>
               <input type='text' class="form-control" />
               <span class="input-group-addon">
               <span class="glyphicon glyphicon-calendar"></span>
               </span>
            </div>
         </div>
      </div>
      <script type="text/javascript">
         $(function () {
             $('#datetimepicker1').datetimepicker();
         });
      </script>
   </div>
</div>

                                    $('.datepicker').datepicker({
    startDate: '-3d'
});

                                    $('.datepicker').datepicker({
    format: 'mm/dd/yyyy',
    startDate: '-3d'
});

                                    <select class="selectpicker">
  <option>Mustard</option>
  <option>Ketchup</option>
  <option>Barbecue</option>
</select>

                                    <input class="datepicker" data-date-format="mm/dd/yyyy">