file.html

<div id="tab_content">
  <div class="row note-row">
    <div class="col-xs-12 col-sm-6 col-md-4 col-lg-3" id="create-new-note">
    </div>
    <div class="col-xs-12 col-sm-6 col-md-4 col-lg-3 note-container" data-note-id="992730496">
    </div>
    <div class="col-xs-12 col-sm-6 col-md-4 col-lg-3 note-container" data-note-id="142250707">
  </div>
  <div aria-labelledby="modalLabel" class="modal fade" id="new-notable" tabindex="-1">
    <div class="modal-dialog">
      <div class="modal-content">
      </div>
    </div>
  </div>
</div>

style.css

#tab_content > .row:not([style*="display:none"]):not([style*="display: none"]):last-child
  padding-bottom: 100px !important