Center empty gallery

Author: vsivsi

Diff for: sample.html

@@ -63,7 +63,11 @@ <h3>fileCollection + jobCollection Test App</h3>
             </div>
           </div>
         {{else}}
-            <p class="text-info text-center">No images in gallery, drag some image files here to upload</p>
+          <div class="col-sm-12">
+            <div class="container">
+              <p class="lead text-info text-center ">No images in gallery, drag some image files here to upload</p>
+            </div>
+          </div>
         {{/each}}
       </div>
     </div>