diff --git a/xwiki-platform-core/xwiki-platform-flamingo/xwiki-platform-flamingo-skin/xwiki-platform-flamingo-skin-resources/src/main/resources/flamingo/less/action-menus.less b/xwiki-platform-core/xwiki-platform-flamingo/xwiki-platform-flamingo-skin/xwiki-platform-flamingo-skin-resources/src/main/resources/flamingo/less/action-menus.less
index 64e76021e457..582fff14e366 100644
--- a/xwiki-platform-core/xwiki-platform-flamingo/xwiki-platform-flamingo-skin/xwiki-platform-flamingo-skin-resources/src/main/resources/flamingo/less/action-menus.less
+++ b/xwiki-platform-core/xwiki-platform-flamingo/xwiki-platform-flamingo-skin/xwiki-platform-flamingo-skin-resources/src/main/resources/flamingo/less/action-menus.less
@@ -121,8 +121,7 @@
     border-radius: 0;
     border: 0;
     min-width: 0;
-    transform-origin: 100% 50%;
-    transition: transform 300ms ease-in-out;
+    transition: width 300ms ease-in-out, padding 300ms ease-in-out;
     width: 200px; // we need to set a width in pixels otherwise the transition is not applied nicely
   }
 
@@ -144,7 +143,8 @@
     }
     // The input has no width (it's hidden basically, but we need to set the width to 0 to have the nice transition)
     & + #headerglobalsearchinput { // we need to be that specific to be applied
-      transform: scaleX(0);
+      width: 0;
+      padding: 0;
     }
   }
 }