diff --git a/module/api/css/view.css b/module/api/css/view.css
index 003484f6cc..784cd1beb0 100644
--- a/module/api/css/view.css
+++ b/module/api/css/view.css
@@ -9,3 +9,4 @@
 #outlineMenu::-moz-scrollbar,
 #hostory::-moz-scrollbar {height: 0px; width: 0px; background: transparent;}
 .main-col iframe {min-height: unset;}
+.bottom-btn-tree {display: none;}