diff --git a/apps/documenteditor/main/resources/less/toolbar.less b/apps/documenteditor/main/resources/less/toolbar.less
index 6262d30093..b1ecc679bd 100644
--- a/apps/documenteditor/main/resources/less/toolbar.less
+++ b/apps/documenteditor/main/resources/less/toolbar.less
@@ -105,7 +105,7 @@
 }
 
 // menu zoom
-.menu-zoom {
+.dropdown-menu .menu-zoom {
     line-height: @line-height-base;
     .title {
         padding: 5px 5px 5px 20px;
@@ -127,7 +127,7 @@
         text-align: center;
     }
 
-    .next {
+    .btn.next {
         float: right;
         margin: 2px 5px 0 0;
         .rtl & {
@@ -136,7 +136,7 @@
         }
     }
 
-    .prev {
+    .btn.prev {
         float: right;
         margin-top: 2px;
         .rtl & {