2 files changed, 6 insertions, 2 deletions
diff --git a/addons/website/static/src/css/editor.css b/addons/website/static/src/css/editor.css
index 38242c7ff2d..dd1b33aad5f 100644
--- a/addons/website/static/src/css/editor.css
+++ b/addons/website/static/src/css/editor.css
@@ -340,9 +340,11 @@ table.editorbar-panel td.selected {
 }
 
 .oe_ace_closed {
-  width: 15px;
+  width: 0;
+  transition: width 0.4s ease-in;
 }
 
 .oe_ace_open {
   width: 50%;
+  transition: width 0.4s ease-in;
 }
diff --git a/addons/website/static/src/css/editor.sass b/addons/website/static/src/css/editor.sass
index 68c0287a14f..8d250d00370 100644
--- a/addons/website/static/src/css/editor.sass
+++ b/addons/website/static/src/css/editor.sass
@@ -304,7 +304,9 @@ $remove_color: $icon_close
         left: 0
 
 .oe_ace_closed
-    width: 15px
+    width: 0
+    transition: width 0.4s ease-in
 
 .oe_ace_open
     width: 50%
+    transition: width 0.4s ease-in