anchor.diff:      <iframe style="width: 100%; height: 0px;"></iframe>
     </div>
     <form class="forms" id="manual-input">
  -    <ul class="multicolumn form-row">
  +    <ul class="multicolumn form-row" style="width: 100%;">
         <li style="width: 15%;">
           <label>Date <span style="color: red;">*</span></label>
           <input type="date" name="date" required>
  
positive.code:             return valid;
          };
  
          $('.form-row :input').on('change', function() {
  
          });
  
          $('#timeline-preview button').on('click', function() {
              if ($('#timeline-preview span').html() == '▶') {
                  $('iframe').css('height', '300px');
  
negative.code:         $('button#append-form-row').on('click',
                                         function() {
                                             $('#manual-input ul:first-child').clone().appendTo('#manual-input');
                                             $('#manual-input ul.form-row:last-child :input').val('');
                                             $('#manual-input ul.form-row:last-child li:last-child').css('visibility','visible');
                                             datePickerFallback($('#manual-input ul.form-row:last-child input[name=date]'));
                                         });
  