diff --git a/Controller/BackendController.php b/Controller/BackendController.php
index 7f17385..217c024 100755
--- a/Controller/BackendController.php
+++ b/Controller/BackendController.php
@@ -130,7 +130,7 @@ final class BackendController extends Controller
 
             foreach ($glob as $file) {
                 $basename = \basename($file);
-                if ($basename[0] === '_' && \strlen($basename) === 3) {
+                if ($basename[0] === '_' && \strlen($basename) === 5) {
                     continue;
                 }
 
diff --git a/Theme/Backend/media-list.tpl.php b/Theme/Backend/media-list.tpl.php
index cd7704a..7bad37b 100755
--- a/Theme/Backend/media-list.tpl.php
+++ b/Theme/Backend/media-list.tpl.php
@@ -81,6 +81,7 @@ $next     = empty($media) ? '{/prefix}media/list' : '{/prefix}media/list?{?}&id=
     <div class="col-xs-12">
         <div class="portlet">
             <div class="portlet-head"><?= $this->getHtml('Media'); ?><i class="fa fa-download floatRight download btn"></i></div>
+            <div class="slider">
             <table id="iMediaList" class="default sticky">
                 <thead>
                 <tr>
@@ -207,6 +208,7 @@ $next     = empty($media) ? '{/prefix}media/list' : '{/prefix}media/list?{?}&id=
                         <tr><td colspan="8" class="empty"><?= $this->getHtml('Empty', '0', '0'); ?>
                     <?php endif; ?>
             </table>
+            </div>
             <div class="portlet-foot">
                 <a tabindex="0" class="button" href="<?= UriFactory::build($previous); ?>"><?= $this->getHtml('Previous', '0', '0'); ?></a>
                 <a tabindex="0" class="button" href="<?= UriFactory::build($next); ?>"><?= $this->getHtml('Next', '0', '0'); ?></a>