<div class="card">

  <div class="card-body">

    <form method="post" class="row row-cols-3 g-3 align-items-center">

      <div class="col">

        <div class="form-outline datepicker">

          <input

                 type="text"

                 class="form-control"

                 id="exampleDatepicker1"

                 value='2016-01-01'

                 data-mdb-format='mm/dd//yyyy'

                 />

          <label for="exampleDatepicker1" class="form-label">Date</label>

        </div>

      </div>

       <div class="col">

        <div class="form-outline datepicker">

          <input

                 type="text"

                 class="form-control"

                 id="exampleDatepicker2"

                 value='2016-01-01'

                 data-mdb-format='mm/dd//yyyy'

                 />

          <label for="exampleDatepicker2" class="form-label">Date</label>

        </div>

      </div>

      <div class="col">

        <button type="submit" class="btn btn-block btn-primary mx-3" name="adjust_charts">

          <i class="fas fa-fw fa-calendar-week"></i>

          Submit

        </button>

      </div>

    </form>

  </div>

</div>

​