_import.html.erb in blacklight-spotlight-4.0.0

- old
+ new

@@ -1,9 +1,9 @@
 <div role="tabpanel" class="tab-pane <%= 'active' if @tab == 'import' %>" id="import">
   <%= bootstrap_form_for [:import, current_exhibit], html: { class: 'clearfix', multipart: true } do |f| %>
     <div class="row col-md-12">
       <p class="instructions"><%= t :'.instructions' %></p>
-      <div class="form-group">
+      <div class="form-group mb-3">
         <%= file_field_tag :file, class: 'form-control' %>
         <%= hidden_field_tag :tab, 'import', id: nil %>
       </div>
       <div class="form-actions">
         <div class="primary-actions">