diff --git a/addons/project/static/src/css/project.css b/addons/project/static/src/css/project.css
index d883af59217..10aeecf7306 100644
--- a/addons/project/static/src/css/project.css
+++ b/addons/project/static/src/css/project.css
@@ -52,6 +52,14 @@
   margin-right: auto;
 }
 
+.o_form_project_tasks .note-editable {
+  border: 0;
+}
+.o_form_project_tasks .o_wysiwyg_resizer {
+  border: 0;
+  margin: 0 0px -51px 0px;
+}
+
 .o_kanban_project_tasks .badge {
   background: inherit;
   color: inherit;