test

www/index.html

@@ -115,7 +115,7 @@
                     <h5>Document</h5>
                   </div>
                   <div class="col align-self-end">
-                    <div class="btn-group">
+                    <div class="btn-group" role="group">
                       <button type="button" class="btn">
                         small <i class="fas fa-file-image"></i>
                       </button>